#linuxcnc | Logs for 2012-06-11

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[00:00:01] <ReadError> of course
[00:00:42] <r00t4rd3d> did you buy solidworks?
[00:01:09] <ReadError> I KNOW NOFFTTTINNGGGG!!!!
[00:01:33] <r00t4rd3d> windows only
[00:01:34] <r00t4rd3d> ?
[00:01:38] <jdhNC> http://www.becausewecan.org/Sketchup_to_CNC_via_OpenSource_Free_CAM_plugin
[00:01:39] <ReadError> yes
[00:01:48] <ReadError> you can run it in a VM though
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[00:10:50] <andypugh> Alibre is OK, and reasnably priced.
[00:11:34] <andypugh> The main drawback is that it is Windows only.
[00:11:51] <ReadError> idk
[00:11:54] <andypugh> I think that freeCAD might get there, but it isn't there yet.
[00:11:58] <ReadError> solidworks i had my 1st part super fast
[00:12:07] <r00t4rd3d> ok say i find a image on the net and just want to use my paper and pencil setup to draw it, like this http://i.imgur.com/Hf95t.jpg how i easily get that into linuxcnc?
[00:12:21] <ReadError> pycam
[00:12:31] <andypugh> r00t4rd3d: Image2Gcode
[00:12:43] <andypugh> If you don't mind rastering it.
[00:13:05] <r00t4rd3d> is pycam easier?
[00:13:13] <andypugh> In fact I _think_ you can probably just open the bitmap in Axis..
[00:13:31] <r00t4rd3d> im not even sure what axis is or if its installed
[00:13:46] <andypugh> It's the default user interface
[00:13:55] <r00t4rd3d> ok i got that then
[00:14:49] <ReadError> i did my 1st works in pycam ;)
[00:15:11] <r00t4rd3d> is it a pain to learn ?
[00:15:15] <ReadError> http://p.twimg.com/ArdaEghCQAEiIQ7.jpg:large
[00:15:16] <ReadError> nah
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[00:16:47] <WillenCMD> what is the easiest way to send nml messages in python?
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[00:17:05] <ReadError> http://p.twimg.com/Arnf0VnCAAA7iqs.jpg:large
[00:17:10] <ReadError> thats quality work man
[00:17:14] <ReadError> i got it at my desk at work ;)
[00:17:28] <r00t4rd3d> whats the official site of image2gcode?
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[00:19:14] <ReadError> pycam is really simple bro
[00:19:17] <ReadError> you import the image
[00:19:20] <ReadError> select engrave
[00:19:22] <ReadError> bam
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[00:19:37] <ReadError> can scale it
[00:24:28] <r00t4rd3d> im gonna go out and install it in a minute
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[00:25:00] <Tom_itx> http://www.imagetogcode.com/
[00:27:03] <Tom_itx> somebody put it online: http://www.thuijzer.nl/image2gcode/
[00:28:27] <r00t4rd3d> i tried that but didnt end up with a good result
[00:28:53] <r00t4rd3d> probably cause i dont know what the #s should be
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[00:39:20] <Tom_itx> r00t4rd3d, http://www.daycounter.com/Calculators/GCode/Feed-Rate-Calculator.phtml
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[00:54:04] <WillenCMD> is there a way to use gladevcp without axis or touchy?
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[01:30:54] <Thetawaves> anybody have any information about t62-3ax stepper drivers
[01:31:24] <Thetawaves> like pinouts? i found an image with all the parallel inputs, but none of the outputs
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[01:35:37] <Jymmm> archivist: I may not care for cats, but I don't care for any animal to be hurt or terrorized in fear (couple of human exceptions do apply though)
[01:40:47] <Tom_itx> ok, use a pc type plug or thru grommet cord for the psu supply?
[01:43:00] <Jymmm> pc type plug? You mean an IEC connecotr?
[01:45:29] <Tom_itx> i guess
[01:53:11] <ReadError> ygg
[01:53:12] <ReadError> uhh
[01:53:16] <ReadError> where did cats come up?
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[02:37:36] <r00t4rd3d> thanks for the help ReadError
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[02:40:59] <ReadError> gotta zzzz here soon
[02:41:03] <ReadError> i wake up at 4:30 ;(
[02:41:12] <ReadError> i been where you at tho
[02:41:16] <ReadError> once you grasp it
[02:41:20] <ReadError> it becomes easier
[02:41:34] <r00t4rd3d> i need to stop messing with a pencil and just hook my router up
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[02:44:28] <r00t4rd3d> trying to keep the right pressure on a pencil is a pain in the sack
[02:46:20] <jdhNC> stick it in a piece of cpvc pipe with a spring
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[02:49:13] <r00t4rd3d> then it lifts off my piece but the spring holds it down
[02:49:33] <Tom_itx> or use a pen
[02:49:45] <jdhNC> or a router
[02:50:30] <r00t4rd3d> paint brush
[02:50:33] <r00t4rd3d> :)
[02:51:23] <ReadError> root
[02:51:28] <ReadError> if its touching
[02:51:32] <ReadError> and the lines get fine
[02:51:39] <ReadError> you have backlash
[02:51:48] <ReadError> you need to compensate for
[02:52:24] <Tom_itx> not so much backlash as a 'dull' cutter
[02:52:29] <Tom_itx> in this case a pencil
[02:52:52] <ReadError> im sayin in his z
[02:52:58] <ReadError> since its not returning to the same spot
[02:53:05] <ReadError> he used a marker before
[02:53:08] <Tom_itx> oh
[02:53:12] <Tom_itx> ok i didn't read that
[02:54:11] <r00t4rd3d> http://i.imgur.com/Pciee.jpg
[02:54:19] <r00t4rd3d> nah my "mount" just sucks ass
[02:55:45] <r00t4rd3d> the marker worked okay but that pic we were doing had too fine of lines
[02:55:59] <r00t4rd3d> and they where overlapping
[02:56:25] <r00t4rd3d> my marker tip was pretty beat up
[02:57:40] <r00t4rd3d> -/+ .001 is the difference between a good line or a shitty one with a pencil
[02:58:04] <r00t4rd3d> tape and zip ties is not too accurate
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[04:59:31] * Jymmm strips r00t4rd3d of his MacGyver fan club membership card!
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[05:31:19] <Thetawaves> anybody here use pwm on a parallel port pin to generate an analog voltage with a low pass filter
[05:31:23] <Thetawaves> ?
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[06:36:30] <archivist> Thetawaves, I have done
[06:43:48] <Thetawaves> what resistor and capacitor values did you use? what frequency did you get the parallel port to run at?
[06:45:07] <mrsun> Thetawaves, ive done it at the output from the breakout board ... tho could not get it to run the full range of 0 - 10V for my vfd as the vfd put a load on it ...
[06:45:30] <mrsun> or no ... hmm i had a stage more :P
[06:45:46] <mrsun> opto -> opto -> low pass filter on the 10.5V from the VD :P
[06:45:48] <mrsun> VFD
[06:46:04] <Thetawaves> what values?
[06:46:08] <Thetawaves> 1k and 0.1uf?
[06:46:14] <mrsun> hmm
[06:46:15] <Thetawaves> what frequency did you achieve?
[06:46:17] <mrsun> let me check
[06:46:31] <mrsun> Thetawaves, dont remember =)
[06:46:39] <Thetawaves> 1k and 0.1uf has 1.5khz cutoff so that's pretty good
[06:47:19] <mrsun> 10k, 1uF
[06:48:07] <Thetawaves> i can see why you're having current problems :)
[06:48:10] <archivist> I cannot remember, was for a machine at a friends and just raided the bit box till it worked, used the default rate in linuxcnc
[06:48:32] <archivist> add a buffer
[06:48:51] <Thetawaves> so parallel port doesn't supply a power pin?
[06:49:02] <Thetawaves> hmmm so i need TWO power supplies for this
[06:49:58] <archivist> if you need 10v you need an amplifier
[06:50:05] <Thetawaves> i just need 5v
[06:50:14] <Thetawaves> but it does need to be isolated, so there's one right there
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[06:50:53] <Thetawaves> signal out is +5? with a suitable resistor, that should power the optocoupler just fine, no additional power supply needed
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[06:52:30] <mrsun> not guaranteed to be +5 i think
[06:52:38] <DJ9DJ> moin
[06:53:28] <mrsun> +2.4 - 5.0V aparently .. in the ballpark there
[06:53:43] <mrsun> drives ttl logic but not guaranteed to be 5V like i said :P
[06:54:10] <mrsun> 2.5mA :P
[06:57:45] <Thetawaves> thank you for the info
[06:58:11] <Thetawaves> only 2.5ma? that could be a problem
[06:58:15] <mrsun> but dont qoute me on that ... =)
[06:58:17] <archivist> I would do stuff after the opto so you have all the drive you want
[06:58:20] <Thetawaves> i think the lowest power i have is 3ma
[06:58:28] <mrsun> its what i could find from a fast search on google =)
[06:58:49] <mrsun> buffer -> opto -> whatever you drive ? :)
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[07:01:23] <Thetawaves> buffer would require a power supply
[07:02:28] <archivist> buffer to drive logic can be powered by usb
[07:03:00] <awallin> my experience is you need lots and lots of filtering for the analog trace to look nice. -> low bandwidth..
[07:03:35] <archivist> stuff the other side of the opto can be driven from the equipment psu/whatever
[07:05:41] <Thetawaves> i actually have a pci parallel port card
[07:05:54] <Thetawaves> i'm sort of hoping it's special and has high voltages
[07:07:45] <awallin> just be a pessimist and you won't be disappointed :)
[07:09:02] <Thetawaves> hahah we shall see
[07:11:20] <archivist> often parallel ports are poor at sourcing current, I often add an external pullup and or ttl buffer
[07:12:26] <archivist> or use a ULN2002 etc buffer so I get an open collector capable of higher voltage
[07:14:33] <archivist> I think I used a 7416 on the mill
[07:16:14] <Thetawaves> cool
[07:16:28] <Thetawaves> thanks, this has been very informative :)
[07:19:04] <archivist> or cheat and get one of the break out boards where it is all done for you
[07:20:54] <Thetawaves> what boards?
[07:22:22] <Thetawaves> i just need to pull one or two wires out of an existing controller
[07:23:54] <archivist> like ebay item 260912096591
[07:25:57] <Thetawaves> hmmm
[07:27:26] <archivist> and a cheaper one 190671629625 but in china
[07:27:33] <archivist> nearer
[07:28:46] <archivist> but the pwm claim in the title is not backed up later in the item
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[07:48:34] <mrsun> what recomendations on aluminium alloys for milling and lathe work ? :)
[07:49:18] <mrsun> 6061 ?
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[07:54:07] <awallin> alumec ?
[07:54:08] <mrsun> 4212 or 6082 aparently is a good alloy to cut? :)
[07:54:27] <mrsun> we dont even have 6061 in SS :P
[07:57:40] <Tom_itx> 7075
[08:01:23] <mrsun> no SS on that either ... hard to get non SS materials in sweden i think :P
[08:01:27] <mrsun> never tried but =)
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[08:51:09] <Loetmichel> mornin'
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[09:17:30] <V0idExp> Hey guys! A rapid question: how can I determine which is the max freq at which I can run my drives? Just wanted to build a mesa-card based solution for my stepper-drived 4 axis system... but since I want to run fast, the frequency is supposed to be the critical factor
[09:18:18] <awallin> if you have a mesa card then the hardware/electronics is not going to be a limiting factor, I guess
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[09:19:05] <awallin> you will probably only be limited by the acceleration & speed your motors can provide (that depends on the mass and cutting-forces on the thing you are moving)
[09:19:23] <archivist> the steppers themselves are your problem, think of using servos
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[09:19:35] <Loetmichel> i think the steppers/torque of them will be the limit, or do you use 250 times microstepping?
[09:19:39] <Loetmichel> 256
[09:24:44] <V0idExp> The manual for my stepper driver says that it can accept a 80kHz wave... For now we use software step generator (stepconf configuration, to be short) through a normal Parallel Port. But we are limited to 15kHz by hardware (PC electronics). I'm a noob in these things, but supposed that MESA cards have a clock generator on board, I thought that it's electronics-independent, so, as you sayd, the only limiting factor is our motor limits. Can y
[09:24:46] <V0idExp> ou confirm this? Because we want to run almost at maximum speed, and possibly have a large (at least 20) number of I/O ports.
[09:25:19] <awallin> the mesa card should easily output 80 kHz if you want
[09:26:23] <V0idExp> Oh, that's a great thing! :) Is the connection type important? I mean, there are mesa cards that are PCI-plugged, others are Parallel Port/USB plugged...
[09:27:05] <archivist> I can easily go too fast for my steppers on parallel, but then I only use half step
[09:27:14] <awallin> I'd go with PCI, but others are using parallel-port successfully also
[09:27:29] <archivist> not usb!
[09:33:14] <micges> mesa will easly generate 2MHz step wave
[09:34:37] <V0idExp> Ok... You provided me a lot of useful information, thank you guys! Ah, another question... Suppose I have up to 4 steppers and there are at least 10 input and 10 output ports that my system uses. What mesa card you should suggest? The target system is a minimal Debian @ Intel Atom, which acts like a separate CNC, which communicates through an ethernet connection with the working PC.
[09:35:26] <micges> cheapiest will be mesa 5i25 + 7i76
[09:36:59] <micges> 5 Axis STEP / DIR,spindle,16 out, 32 in
[09:37:19] <V0idExp> Ok, seems that the europe mesa dealer has that stuff... Will this kind of configuration load the CPU a lot? I mean, generally, CNC "work session" isn't that heavy?
[09:38:12] <awallin> I have an atom 330 system which runs LinuxCNC + mesa-card OK. It's quite slow for serious work (e.g. compiling large programs) compared to an i7, but fine for LinuxCNC
[09:39:13] <awallin> I guess the new ones are called 520 or 550 or something. they might be a bit faster
[09:40:41] <micges> 525MW
[09:42:39] <V0idExp> Well, as for now we have an i7 which does all the heavy calculations and generates GCode program, and an Intel Atom (don't remember which model) which runs a standard Debian Squeeze with RTAI+LinuxCNC which accepts the GCode through an ethernet connection and acts as a CNC, and it's ok. But if you can confirm that with a mesa card configuration, the latency isn't important as long as the card generates the steps, we can directly plug that 5
[09:42:41] <V0idExp> i25 on i7's motherboard and throw away the Atom piece?
[09:43:47] <V0idExp> 'cause our Atom has 6k Base thread latency (which is relevant for software stepping) and the i7 has 20k
[09:44:03] <awallin> you still run the servo-loop with RTAI+LinuxCNC, so that needs to have reasonable latency/jitter
[09:44:28] <V0idExp> but I don't have servo motors... or it doesn't matter?
[09:44:32] <awallin> if you want to work with CAD/CAM on the i7 while the machine runs I'd keep the atom as the cnc-controller
[09:45:22] <micges> I agree - pc with cnc controller shoud control machine and only that
[09:45:47] <V0idExp> well, I agree too :D my boss wants to save money, though :D
[09:45:50] <awallin> with step-generation on the mesa FPGA you only run a servo-thread or "trajectory-thread" on the real-time side. I think...
[09:46:14] <micges> yes
[09:46:49] <micges> V0idExp: you already bought atom board, so what's the saving?
[09:47:28] <awallin> so with the atom you have an error of 6k/1ms and with the i7 it would be 20k/1ms. if you run a 1ms traj-thread. I don't know if that will make much difference
[09:47:35] <V0idExp> well, the atom runs the prototype system... there will be more machines in the future, which may go in series production
[09:48:19] <V0idExp> well, on i7 the base thread is around 20k, the servo thread latency is around 60k
[09:48:30] <V0idExp> on atom boths are under 10k
[09:50:25] <micges> latency on cnc should be as small as possible, both servo and step system
[09:52:57] <V0idExp> mmmh... I repeat, I'm noob and don't understand the internals of linuxcnc, but if I have a hardware stepgen (provided by mesa card), have no servo drives, only 5 stepper drives and 20 I/O pins... at which point the latency influences this system? :)
[09:53:13] <V0idExp> *4 steppers
[09:53:48] <micges> I said 'should'
[09:54:00] <micges> it will work on both mb
[09:54:20] <V0idExp> good... thank you all!
[09:54:35] <V0idExp> http://www.retrofit-plus.at/en/store/7i43-u-4-anything-i-o-usb-parallel---400k-fpga---48-i-o
[09:54:49] <V0idExp> do you think will this card do the job for the system I described above?
[09:55:24] <micges> that one and 7i37
[09:55:33] <micges> (16 in, 8out)
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[09:56:58] <sendoushi> hey guys
[09:57:08] <sendoushi> r00t4rd3d: are you there?
[10:02:58] <V0idExp> Thank you all guys! You helped me a lot!
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[10:29:35] <jdhNC> 7i37 is too slow for steppers, you would need to go directly to the 7i43 for that or add a 7i47 or 7i42? whatever the cheap buffered daughterboard is.
[10:50:33] <Valen> too slow?
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[11:10:33] <mrsun> ohh gear hobs are like threads? :)
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[11:22:35] <axxlq1> Hello all. If I compile the linux kernel with "preemptible kernel" option then can I use linuxcnc without the rtai patch?
[11:26:44] <jthornton> are you wanting to have the pure simulator?
[11:28:33] <axxlq1> no, for work. But using rtai patch undesirable for some reasons.
[11:30:11] <jthornton> linuxcnc won't run without real time kernel except for pure simulator
[11:30:40] <archivist> mrsun, and then you need to gear the spindle with the rotary
[11:31:03] <mrsun> yeah
[11:31:22] <axxlq1> then how about RTOS? not linux kernel.
[11:33:31] <jthornton> axxlq1, what are you trying to achieve?
[11:36:19] <axxlq1> well, went to think. :)
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[11:36:56] <jthornton> wtf was that?
[11:38:06] <mrsun> haha :)
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[12:01:05] <Tom_itx> he went to think jt
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[12:17:49] <jthornton> :-)
[12:22:08] <ReadError> http://www.youtube.com/watch?v=mRuSYQ5Npek&hd=1
[12:22:10] <ReadError> ;o
[12:36:48] <jthornton> that's interesting
[12:45:31] <mrsun> what do you need a cutting edge for when the material aparently does that for you :P
[12:49:49] <Loetmichel> ;-)
[12:50:02] <Loetmichel> makes for a BAD surface how it looks
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[13:05:07] <archivist> very good vid showing built up edge effects
[13:05:39] <archivist> and just how hard work hardened metal is
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[13:12:20] <skunkworks> if you look at it really close you can almost see the nanobots machining..
[13:13:24] <archivist> what is also interesting is how far in front of the tool the metal is deforming
[13:14:14] <archivist> no wonder we get a crappy finish with some tool/metal combinations
[13:16:17] <ScribbleJ> So
[13:16:50] <ScribbleJ> I did some playing around with an oak board and a ballnose endmill and tried to carve a bit of a thing and it came out OK but the surface finish is really, really, really lousy.
[13:17:45] <archivist> was the rpm high enough, was the cutter held rigidly
[13:17:58] <archivist> was it sharp enough
[13:18:17] <ScribbleJ> I'm not sure, but I'll check all those things.
[13:19:04] <archivist> can you hear the machine vibrating badly
[13:19:45] <ScribbleJ> The spindle seems pretty quiet and totally solid, but one of the axes makes some ridiculous noise when it moves.
[13:20:55] <archivist> what Im getting at is machine vibration when cutting, sign of a flexible machine
[13:21:08] <ScribbleJ> Yea, I see what you're getting at.
[13:21:40] <ScribbleJ> Is there some easy method for me to determine if my machine is wobbly and which parts need tightening specifically?
[13:22:37] <archivist> dial indicator between base and spindle and lean on it in all directions
[13:23:04] <ScribbleJ> Sure, that makes sense.
[13:23:11] <archivist> you need to move the dti around for various tests
[13:23:13] <ScribbleJ> I think I left my dial indiator at the hackerspace.
[13:24:12] <ScribbleJ> Dial indicator is a pretty dumb name, I've always thought. Yes, it has a dial and it indicates something but it would be superhelpful if the name of the thing said a little something about WHAT it indicates. Call it a dial linear gauge or something.
[13:26:38] <JT-Shop> lol
[13:30:18] <archivist> the early ones were not calibrated used for centering on a lathe
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[13:32:17] <ScribbleJ> Interesting.
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[13:35:05] <archivist> something like http://www.iowa-industrial.com/Eastern-Iowa-/Electrical-Suppliess-and-Materials-/Electrical-Distribution-/Indicator-how-to-build-plans-lathe-milling-machine-shop-image-No.jpg
[13:35:33] <Dave911> Hi guys... just want to verify... is the email list down?
[13:37:19] <Dave911> Or have I fallen off the list somehow..I haven't received anything for a day and a half.
[13:37:25] <skunkworks> Last email I got was on the 9th
[13:38:04] <Dave911> That's what I have also.. and I sent a couple to the list and they went into a black hole apparently.
[13:38:07] <JT-Shop> no wonder email cleaning went so fast the last couple of days
[13:38:10] <skunkworks> funny - I didn't even notice that..
[13:39:42] <Dave911> Well, it is summer and I thought perhaps people were just busy... but then when I didn't see my own messages.. I thought something might be wrong.
[13:39:44] <archivist> I bet sourceforge has a problem as I saw a mention in another channel about a list missing
[13:40:27] <JT-Shop> I never see my own messages...
[13:41:37] <Dave911> I always do.. perhaps you have your spam filter set to weed yourself out? ;-)
[13:41:59] <archivist> is that why I managed to nearly clear my inbox and archive stuff :)
[13:42:01] <JT-Shop> lol, don't think so
[13:42:18] <Dave911> Oh well.. gotta go.. bye
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[14:03:50] <mrsun> hmm, imperial threads, what degrees are those ?
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[14:08:06] <mrsun> 1 1/2-8 its stated and i guess thats OD and number of threads per inch
[14:08:12] <mrsun> but is it 55 or 60 degree? :)
[14:08:54] <archivist> 60 for most/all american threads
[14:09:21] <archivist> 55 for whitworth and bsf
[14:19:28] <mrsun> ahh ok =)
[14:21:13] <Jymmm> For all you blind bastards... 5000 Lumen... http://www.batteryjunction.com/olight-x6-marauder.html
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[14:57:39] <Cnc-Dau> Hi
[14:57:59] <Cnc-Dau> Spricht hier evtl. jemand deutsch ?
[15:04:30] <Cnc-Dau> Who can help me configure my emc2 for my controller board ?
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[15:12:29] <jdhNC> ask a specific question and see.
[15:13:13] <mozmck> ish kann nicht deutsch sprechen.
[15:13:24] <Cnc-Dau> I've a Controller based on 4 uln2003a chips
[15:15:39] <Cnc-Dau> on paralelport pin 2,3,4,5 vor steps y x and z, pin 6 x achse pin 7 y achse pin 8 z achse. pin 25 masse
[15:16:48] <Cnc-Dau> not one pin direction and one pin step :-(
[15:17:04] <Cnc-Dau> what can i do ?
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[15:22:46] <Cnc-Dau> my controller is like this: http://electronics-diy.com/stepper_motors.php
[15:26:44] <archivist> see http://linuxcnc.org/docs/html/man/man9/stepgen.9.html
[15:27:35] <archivist> you have a unipolar types 5 and 6
[15:32:33] <Jymmm> at 1100F (593C) give meaning to aluminum heat SINK (with no drain)!
[15:33:33] <archivist> Cnc-Dau, and this http://linuxcnc.org/docs/html/config/stepper.html
[15:34:26] <archivist> Jymmm, er english and not erm gibberish
[15:34:34] <Jymmm> cpresser: BTW, Soapstone as a backer for a heating element does work as an electrical insulator, BUT also acts like a thermal heat sink too.
[15:35:15] <Jymmm> archivist: after 20minutes, the aluminum is still too hot to touch
[15:35:31] <Jymmm> it's sinking it and not disapating
[15:36:47] <Jymmm> and it's just radiant heating the aluminum, not any actual physical contact with it
[15:37:37] <Jymmm> It should have never got that hot is such a sort amount of time.
[15:37:42] <Jymmm> short
[15:38:16] <archivist> if no/little air flow things dont cool down
[15:39:17] <Jymmm> Well, ironically I can touch the heating element itself within 3 seconds of removing power (it cools down that fast), just nothing surrounding it.
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[15:40:42] <archivist> JT-Shop, see http://linuxcnc.org/docs/html/config/stepper.html why is that page talking about pwmgen and spindle
[15:41:45] <Jymmm> I have an alternate idea, just need to figure out how to "plumb" the opening of an one each opening on a heat gun down to 1/4" or slightly less without prematurely burning out the heat gun too quickly
[15:43:18] <Jymmm> If I have to replace the heatgun monthly, I can deal with that.
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[15:44:10] <archivist> JT-Shop, manual usability problem /me looked at integrators manual scanned for first title stepper configuration, not what that page is about
[15:44:23] <Loetmichel> re @ home
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[15:45:35] <Cnc-Dau> my english is to bad, i can read stepgen.9.html and stepper.html, but i don't understand what i must do :-(
[15:46:34] <Loetmichel> Cnc-Dau: what is your native language....
[15:46:43] <archivist> Cnc-Dau, you just need to set the right mode and the right connections
[15:46:43] <Cnc-Dau> german
[15:47:01] <Loetmichel> ( i wanted to write mother language whcih should give away mine ;-)
[15:47:12] <DJ9DJ> Loetmichel, that should be obvious :D DAU must be german ;)
[15:47:27] <Loetmichel> DJ9DJ: yes, but i wanted to make sure
[15:47:38] <Loetmichel> so we two at least could help him ;-)
[15:48:01] <archivist> Loetmichel, did you see his stepper circuit
[15:48:18] <Loetmichel> archivist: i've seen
[15:48:37] <Loetmichel> hmm, is linuxCNC able to generate the statemachine itself?
[15:48:56] <Loetmichel> and does Cnc-Dau have enough pltports?
[15:49:07] <archivist> yes see http://linuxcnc.org/docs/html/man/man9/stepgen.9.html
[15:49:34] <archivist> depends how many axes :)
[15:49:53] <DJ9DJ> hehe
[15:50:42] <Loetmichel> archivist: ah, i see, convenient fro it to be able to do this ;-)
[15:51:30] <archivist> type 5 or 6 and whatever connections from stepgen to parport
[15:51:49] <Cnc-Dau> ive 3 axes, all axes are on parport pin 2,3,4,5 pin 6 activate x axe pin 7 activate y axe and pin 8 activate z axe.
[15:51:51] <Loetmichel> yeah, looks like it
[15:51:52] <roycroft> so have any of you used those inexpensive, imported hand-held digital tachometers?
[15:52:01] <roycroft> and if so, do they actually work reasonably well?
[15:52:07] <Loetmichel> Cnc-Dau: thats not so good
[15:52:32] <archivist> Cnc-Dau, all need to work at the same time
[15:52:41] <Cnc-Dau> :-(
[15:53:25] <archivist> I wonder if a latch or three could sort that out
[15:53:33] <Loetmichel> Cnc-Dau: it would be better to use a cheap Stepper driver with integrated current regulation and counter for the steps
[15:53:49] <Cnc-Dau> what can i do ?? 4 pins x-axe ; 4 pins y axe and 4pins z axe better ?
[15:53:57] <Loetmichel> which is fed only 2 signals per axis: step and direction
[15:54:47] <Loetmichel> from your circuot you have no current regulation
[15:55:15] <Loetmichel> and no "overvoltage" to the steppers, so they tend to stall at relatively low speeds
[15:56:36] <Loetmichel> Cnc-Dau: where are you from?
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[15:57:10] <Cnc-Dau> the controller have external 12V for the steppers and the steppers are 12V
[15:57:24] <Cnc-Dau> I'm from Hannover (Germany)
[16:00:09] <archivist> there should be enough outputs to drive three steppers
[16:08:51] <Loetmichel> Cnc-Dau: sorry, a bit far.
[16:09:32] <Loetmichel> if the steppers are for 12V and the controllers get 12V you will have very little max.RPM
[16:10:44] <Cnc-Dau> here are images of controller and stepper: http://www.bm-kfz.de/cnc/
[16:10:47] <Loetmichel> because a coil "resists" change of current. if you want to switch the current in a inductor FAST on and off you have to pus MUCH more voltage into it than it was designed for. AND need a current reguulation.
[16:11:24] <Loetmichel> for example: the steppers on my machine are 3V1A coils
[16:11:36] <Loetmichel> but i supply the driver with 32V
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[16:12:13] <Loetmichel> result: max RPM about 10
[16:13:05] <Loetmichel> ahrem: 10 rps, eq. 600RPM
[16:13:52] <Loetmichel> supplied with 12V the stepeprs will stall at about 120ROM
[16:13:55] <Loetmichel> RPM
[16:14:22] <Loetmichel> what machine do you want to drive with this steppers/board?
[16:16:05] <Cnc-Dau> its a "Portal-Fr�se" for mini-drill
[16:16:51] <Cnc-Dau> for "Gravuren" -- i don't know in english....
[16:17:00] <Loetmichel> Cnc-Dau: "gantry mill"
[16:17:14] <Loetmichel> "engraving"
[16:17:15] <Cnc-Dau> ah ok :-)
[16:18:09] <Loetmichel> Cnc-Dau: lets put it short: with this steppers you should consider drivers with at LEAST 36V
[16:18:14] <archivist> for a little machine 12v steppers and unipolar should be ok, just a setting up problem I think
[16:18:19] <Loetmichel> or better: buy new steppers
[16:18:25] <Loetmichel> or you will not be happy
[16:19:05] <Loetmichel> archivist: with a 8mm metric screw as a leadscrew?
[16:19:13] <Loetmichel> with 1,25mm pitch?
[16:19:36] <Loetmichel> how much coffe shall he drink for one move x0y0 to x max y max?
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[16:20:08] <archivist> a gallon, let him learn a bit then he will decide he needs an upgrade :)
[16:20:20] <Loetmichel> hrhr, ok ;-)
[16:20:44] <Cnc-Dau> i can't buy anythink this time :-(
[16:20:58] <Loetmichel> Cnc-Dau: my fist machine was a bit similar: http://www.cyrom.org/palbum/main.php?g2_itemId=2859
[16:21:12] <Loetmichel> same steppers, 5mm metric screw as "drive"
[16:21:41] <Loetmichel> after 5 hrs of use the nuts on the screws were 5mm holes, no longer any thread in it.
[16:21:51] <Loetmichel> and the speed was so awfully slow....
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[16:23:32] <Jymmm> Loetmichel: that's a lot of plexi =)
[16:24:07] <Loetmichel> Jymmm: it was... and jet: it was doing what it was build to: milling/drilling PCBs
[16:24:21] <Jymmm> =)
[16:24:23] <Loetmichel> awfully slow but it did;-)
[16:24:30] <Cnc-Dau> http://www.ebay.de/itm/110889144887?ru=http%3A%2F%2Fwww.ebay.de%3A80%2Fsch%2Fi.html%3F_from%3DR40%26_trksid%3Dp4712.m570.l1313%26_nkw%3D110889144887%26_sacat%3DSee-All-Categories%26_fvi%3D1&_rdc=1
[16:24:41] <Cnc-Dau> this is my
[16:25:23] <Loetmichel> Cnc-Dau: i see
[16:26:22] <Loetmichel> you bought something from ebay whre the seller wasnt able to get it to run (decent)... so he sold it... and now you want to do it yourself without the slughtest knowledge of what to do?
[16:26:27] <Loetmichel> is that correct?
[16:27:28] <JT-Shop> Loetmichel: you can run an etch a sketch with 12v steppers :)
[16:28:31] <Cnc-Dau> It's ok. i've only change spindles.
[16:28:35] <Loetmichel> Cnc-Dau: if i were you i would buy or scavenge a L297/L298 board with 3 channes somewhre, get a 36V++ supply and try again.
[16:29:06] <Loetmichel> hmmm
[16:29:42] <alex4nder> hey
[16:29:44] <alex4nder> hey
[16:29:49] <DJ9DJ> hey :D
[16:29:52] <alex4nder> double
[16:30:03] <Loetmichel> i have some steppers scavenged lately. i COULD send them to you. but you definetly need a driver ciruit with more Voltage and a current regulation
[16:30:06] <DJ9DJ> three in a row ;)
[16:30:37] <Loetmichel> <- ccccccc ombo breaker ;-)
[16:30:42] <DJ9DJ> hrhr
[16:30:58] <alex4nder> haha
[16:32:18] <Loetmichel> Cnc-Dau: http://www.cyrom.org/palbum/main.php?g2_itemId=13248
[16:32:36] <Cnc-Dau> I've no money to buy anythink this time :-( so this must run.....
[16:32:58] <Loetmichel> the steppers have ~8,5 Ohm and 1A so they have a bit more torque than yours AND can turn MUCH faster
[16:33:06] <Jymmm> Loetmichel: laser printers?
[16:33:14] <Loetmichel> Jymmm correct
[16:33:28] <Jymmm> all HP I see =)
[16:33:45] <Jymmm> Loetmichel: where in the hell did you get so many?
[16:34:01] <JT-Shop> archivist: so your ok with that manual page?
[16:34:15] <Loetmichel> we convert them to be eavesdropping-proof in the company
[16:34:36] <Jymmm> Loetmichel: explain
[16:34:39] <Loetmichel> that were the bad/incomplete ones from a large batch 5 years ago
[16:34:56] <Loetmichel> so i decided to scrap them
[16:35:37] <Loetmichel> Jymmm: the company i work for makes IT hardware for military and services in shielded and/or rugged
[16:35:49] <Jymmm> Loetmichel: ah
[16:36:25] <Jymmm> Loetmichel: Heh, make a rugged inkjet printer =)
[16:36:41] <Jymmm> Loetmichel: that doens't suck ink =)
[16:36:52] <Loetmichel> so we get COTS printers, computer, monitors and so aon, dismantle then, throw in about a ton copper tape, ferrite beads and steel casings for the boards and put them together ;-)
[16:37:03] <Loetmichel> Jymmm: we have.
[16:37:12] <Loetmichel> its called impact printer ;-)
[16:37:31] <Jymmm> Loetmichel: No, that's called 1970's =)
[16:37:37] <DJ9DJ> lol :)
[16:37:41] <Loetmichel> http://www.cordsen.com/index.php/rugged/printer/59-rugged/bw-printer-rugged/147
[16:37:57] <Loetmichel> that is a chassis from a epson LQ300+
[16:38:06] <Loetmichel> with some improvements...
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[16:38:19] <Loetmichel> and you dont wnat to kow the price ;-)
[16:38:59] <Jymmm> Loetmichel: Well, an Epson LQ300 was about $250 on high, so what you ripping the guberment off for?
[16:39:44] <Loetmichel> Jymmm: impact printers are STILL the only ones that can cope with temperatures from -20 to +60°c, high humidity and up to 30G
[16:39:54] <Loetmichel> IIRC about 3kEur
[16:39:55] <Loetmichel> ;-)
[16:40:01] <Jymmm> fuck me!!!
[16:40:19] <Loetmichel> and the LQ300+ is the only impact printer STILL in production
[16:40:23] <Jymmm> Loetmichel: For 3K, it better give BJ's too!
[16:40:29] <Loetmichel> not only from epson but worldwide
[16:40:53] <Loetmichel> Jymmm: dont think so
[16:41:14] <Loetmichel> get a printer which will run INSIDE a tank anywhere else...
[16:41:21] <Connor> So, the question is, WHY do you need a printer that can take -20 to +60C and 30G's ?
[16:41:24] <Loetmichel> from canada to sahara
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[16:42:03] <Jymmm> Loetmichel: Citizen an Oki make printers still
[16:42:34] <Cnc-Dau> onlinetranslator is my best friend *l�l*
[16:42:37] <Cnc-Dau> Is it to be got now possibly the control for the moment thus or by uml�ten of the board in way?
[16:42:59] <DJ9DJ> lol
[16:43:07] <DJ9DJ> onlinetransaltor sucks :D
[16:43:22] <Loetmichel> Cnc-Dau: if your computer has a second LPT port: maybe
[16:43:25] <Cnc-Dau> its much better than my english
[16:43:53] <Loetmichel> Cnc-Dau: btw: "umlöten" means resoldering in englisch
[16:44:13] <Cnc-Dau> ive onboard port and a linksys io card with two ports
[16:44:28] <Loetmichel> because you have only 8 output bits on a std lpt port
[16:44:44] <Loetmichel> is the linksys card like the internals?
[16:44:49] <archivist> JT-Shop, the title "Stepper Configuration" suggests it is all about setting up steppers, really its a 3 axis mill with stepper machine setup page
[16:44:58] <TekniQue> I still use an Oki printer at the drag strip to print time slips
[16:45:16] <TekniQue> that thing must have printed a million pages already
[16:45:26] <jdhNC> we have lots of oki 320's
[16:45:33] <TekniQue> it wasn't new when I started using it
[16:45:41] <Loetmichel> i.e: has it jumpers on it for port and IRQ?
[16:46:19] <Loetmichel> TekniQue: i have an old Nec P20 somewhere which has done about a gazillion pages ;-)
[16:46:22] <Cnc-Dau> my board is a abit k7vt4a pro board. the Linksys is a pci card
[16:47:01] <Loetmichel> and a Laserjet4 whoms page counter has 7 digits ;-)
[16:47:37] <Jymmm> Loetmichel: That I'm not surprised at in the least
[16:48:02] <Jymmm> Even the LJ 3's are still going strong, just HUGE =)
[16:48:16] <Cnc-Dau> configured automatic. onboard disable; linksys irq 10 and 12 ports 0x278 and 0x378
[16:48:34] <Loetmichel> Cnc-Dau: sounds fitting
[16:48:40] <Loetmichel> so you can use these ports
[16:48:59] <Cnc-Dau> but how to do it ?
[16:49:19] <Loetmichel> connect each ULN to 4 portbits
[16:49:34] <Loetmichel> so 2 steppers on the first lpt, and the tird on the second.
[16:49:44] <Loetmichel> no enables and such fancy stuff
[16:50:05] <Loetmichel> and then configure the linuxCNC accordingly ;-)
[16:50:44] <jthornton> archivist, I don't see where it mentions a mill, it could be a lathe as well if the Y axis was not in the sample pinout file
[16:51:13] <Jymmm> Loetmichel: Oh, lots of SS rods in those chassis too =)
[16:51:25] <Loetmichel> ss rods?
[16:51:48] <Jymmm> Loetmichel: Stainless Steel rods. make great paint can stirrs that wash off easily =)
[16:51:54] <Loetmichel> hrhr
[16:52:08] <Cnc-Dau> ok, i go work now for 3 hours, than i resoldering and i will be back here ;-)
[16:52:17] <Jymmm> Loetmichel: also good for moving HEAVY equipment
[16:52:22] <Loetmichel> i thougt you wanted to suggest to use them as linear ways ;-)
[16:52:44] <andypugh> I found a crimping tool at the right price for me: http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=320921624427
[16:52:46] <Jymmm> Loetmichel: Nah
[16:53:08] Cnc-Dau is now known as Cnc-Dau|work
[16:53:14] <alex4nder> andypugh: haha blue point
[16:53:18] <Loetmichel> Jymmm: i considered
[16:53:29] <Jymmm> Loetmichel: I have a drawer full of SS rods, they come in handy for various things
[16:53:33] <alex4nder> andypugh: you sure you weren't an american mechanic in a previous life?
[16:54:00] <andypugh> It looks so technical it has to be good.
[16:54:17] <Loetmichel> but my boss would kill me to throw away xxx hrs work for dismantle if the scrapyard man will get them away for free in this state
[16:55:12] <Loetmichel> the only reason to dismantle them was that the scrappy won't take them with the outer plastic shelll
[16:55:41] <Loetmichel> so i had to dismantle them... (and in turn got the opertunity to get the motors out)
[16:57:42] <Jymmm> motors, fans, limit switches =)
[16:58:29] -!- IchGuckLive [[email protected]] has joined #linuxcnc
[16:58:35] <IchGuckLive> Hi all B)
[16:59:11] <Loetmichel> right
[16:59:58] <IchGuckLive> Loetmichel: Thunder headding your way
[17:00:50] <Loetmichel> no problem
[17:01:10] <cpresser> nice machine for a retrofit: http://www.ebay.de/itm/Universal-CNC-Frasmaschine-FK10-Heidenhain-TNC-135-Tisch-1500x400-inkl-MwSt-/310405659964?pt=Industriemaschinen&hash=item48459e7d3c
[17:01:14] <Loetmichel> my computers are UPS buffered with big filters ;-)
[17:01:17] * cpresser needs a larger shop :)
[17:01:39] <Loetmichel> cpresser: me likewise ;-)
[17:03:44] * jthornton needs a nap
[17:05:08] <Loetmichel> jthornton: tell me... i am running on empty. got 3 hrs sleep last night and this evening will be long , too, have to finish a display project for a friend which is overdue since sunday ;-)
[17:06:16] <IchGuckLive> cpresser: if the tnc135 coudt make a circle it woudt be perfekt
[17:06:45] <IchGuckLive> but only length
[17:07:04] <IchGuckLive> "Bahnsteuerung"
[17:07:12] <cpresser> "x: 1200mm, y: 350mm, Z: 460mm"
[17:07:20] -!- syyl [[email protected]] has joined #linuxcnc
[17:07:21] <Jymmm> andypugh: Best damn stak-on type crimpers I've ever had and has a lifetiem warranty on them too http://www-public.tnb.com/ps/fulltilt/index.cgi?part=WT112M
[17:07:26] <cpresser> anyway, it has to be fittedt wit a new control
[17:07:57] <Jymmm> andypugh: cutter is sharp enough that I never even needed a stripper
[17:08:06] <cpresser> servo + encoders, mesa-cards :)
[17:08:08] <IchGuckLive> cpresser: yes with pcw 7i
[17:08:27] <IchGuckLive> the 5i25 7i77 woudt be best
[17:08:45] <Jymmm> andypugh: And I own a few ratcheting crimpers too
[17:08:51] <IchGuckLive> 200USD and you are done
[17:09:18] -!- fatpandas has quit [Ping timeout: 252 seconds]
[17:11:10] <Jymmm> IchGuckLive: Heh, I had that in change yesterday =)
[17:11:41] <IchGuckLive> how haevy coins
[17:12:23] <Jymmm> IchGuckLive: $214 in coins, but the CoinStar machine takes 9.8% if you want cash instead of a gift card
[17:12:40] <alex4nder> yah, the gift card is where it's at
[17:13:07] <Jymmm> alex4nder: Yeah, I want $200 in StarSucks.... NOT!
[17:13:13] <alex4nder> Jymmm: amazon
[17:13:18] <alex4nder> use your imagination
[17:13:49] <Jymmm> I did, cash in hand!
[17:14:01] <Jymmm> $197
[17:14:51] <Jymmm> I was just going to deposit the coins at the bank, but the bastards dont even have a coin machine any longer.
[17:15:21] <Jymmm> IchGuckLive: probably around 2000 coins or so
[17:15:34] <Jymmm> or more
[17:15:53] <alex4nder> I dumped $400 into a coinstar machine once
[17:15:55] <alex4nder> out of a backpack
[17:16:02] <IchGuckLive> Jymmm: wheelbarrow O.O
[17:16:06] <alex4nder> it looked super sketchy
[17:16:10] <alex4nder> and weighed a ton
[17:16:15] <andypugh> I spend my monoey.
[17:16:49] <Jymmm> yeah, I thought my backpack wasn't going to handle it too well, but I have a plastic jar I just toss my coins in when I empty my pockets.
[17:16:57] <andypugh> Coinstar bother me. They say "convert your loose change into cash" but they really change cash into promisory notes.
[17:17:28] <Jymmm> andypugh: Well, you have to take it to the cashier at the store, and they'll give you cash.
[17:17:42] <alex4nder> having $400 of coins bothers me more than a $400 amazon gift certificate
[17:17:56] <alex4nder> considering i'll spend the gift certificate that night
[17:18:24] <andypugh> I see to manage to just spend my changes as it appears.
[17:18:55] <alex4nder> nice
[17:18:57] <IchGuckLive> isend there in the USA a coin roll mashine to borrow for 5Eur a day of a bank as here in germany
[17:19:31] <alex4nder> wut
[17:19:37] <IchGuckLive> in master citys a coin sorter is in the bank for free
[17:21:10] <jdhNC> my bank has a coin thing in the lobby. Dump them in, it spits out a receipt, teller gives you cash
[17:21:59] <andypugh> coins are cash. notes are not cash
[17:22:46] <IchGuckLive> lowest US note is ?
[17:23:10] <IchGuckLive> and is there a 1cent coin
[17:23:22] <jdhNC> I'd consider two thousand pennies much less cash than a $20 bill
[17:23:42] <Jymmm> jthornton: JT-Shop http://www.godvine.com/Unlikely-Boy-Shocks-an-Audience-with-a-Voice-You-ll-Never-Believe-1607.html
[17:23:56] <jdhNC> regardless of feelings about fiat money
[17:26:14] <Jymmm> jdhNC: which bank?
[17:26:32] <jdhNC> BB&T
[17:26:40] <Jymmm> never heard of it =)
[17:27:20] <jdhNC> that's ok.
[17:28:18] <Jymmm> ah, none in CA/AZ/NV/NM/OR
[17:29:32] <cpresser> btw: is some1 from you from Oregon? I am going to visit the US again... i am not sure if i can survive my vacation whithout the smell of machine-oil :D
[17:29:46] <jdhNC> fortunately, I'm rarely in ca/az/etc.
[17:30:03] <Jymmm> cpresser: you could visit an oil change place =)
[17:30:21] <jdhNC> or just carry-on a small bottle.
[17:30:39] <jdhNC> put a little dab behind each ear.
[17:30:49] <Jymmm> just soak your clothes in oil, TSA and Customs will just LOVE that
[17:31:41] <Loetmichel> hrhr
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[17:31:50] <cpresser> so far, the did TSA always check my stuff. perhaps its because i have long hair and a beard :)
[17:32:15] <Loetmichel> cpresser: so you look like me some years ago?
[17:32:27] <cpresser> no, better :D
[17:32:34] <Jymmm> I wonder if their bomb sniffng equipment is smart enough to detect the individual components of gun powder?
[17:32:34] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=2812
[17:32:55] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=2841
[17:33:04] <cpresser> a notebook-battery contains enoght power to ingnite a fire on a plane
[17:33:09] <Loetmichel> ... nowadays the hair is shorter and ice grey ;-)
[17:33:19] <Loetmichel> cpresser: MORE than enough
[17:33:53] <Jymmm> cpresser: Sure, but I'm speaking of an explosive that may go undetected
[17:33:59] <Loetmichel> but: so does a hearing aid, even a pacemaker
[17:34:56] <syyl> http://xkcd.com/651/
[17:34:57] <syyl> :P
[17:35:48] <Loetmichel> Jymmm: since i had to dive into the hydraulics tank for the variable pitch prpopellers at the navy ( about 20 years old hydraulic oil) i am cured of liking that smell ;-)
[17:36:44] <Jymmm> I like the smell of an angle grinder
[17:37:04] <Jymmm> and seeing how far I can make the sparks fly =)
[17:37:20] <Jymmm> 20ft is my record with a 4" grinder =)
[17:37:28] <Loetmichel> (it had a leak and we were loosing oil to the sea, so it had to be fixed from the inside with mighty putty
[17:37:54] <Jymmm> never heard of it
[17:39:49] <Loetmichel> epoxy putty
[17:40:01] <Jymmm> ah
[17:40:37] <Loetmichel> ... and i had to showeer over three hours afterwards and was STILL black as a nigerian ;-)
[17:40:55] <Jymmm> Dont drop the soap next time =)
[17:41:13] <Loetmichel> 20 years old hydraulic oil
[17:41:21] <Loetmichel> black as coal
[17:41:25] <Loetmichel> and the smell...
[17:41:35] <Jymmm> Loetmichel: no gasoline? no charcoal lighter fluid?
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[17:43:07] <Loetmichel> Jymmm: on a navvy ship?
[17:43:23] <Jymmm> charcoal lighter fluid works really well at disolving lithium grease too
[17:43:27] <Loetmichel> 500 miles from the next harbour
[17:43:34] <Jymmm> Loetmichel: What you never crossed the equator?
[17:43:43] <Loetmichel> no
[17:43:47] <Loetmichel> german navvy
[17:43:52] <Jymmm> ah
[17:44:05] <Loetmichel> london, dundee, some spain, some norway
[17:44:17] <Jymmm> they have bbq's on ships, just not sure how they're started
[17:44:36] <Loetmichel> we HAD a bbq
[17:44:55] <Loetmichel> ... with fueled with prapane ;-)
[17:44:59] <Loetmichel> -a+o
[17:45:34] <Jymmm> Loetmichel: http://en.wikipedia.org/wiki/Line-crossing_ceremony
[17:45:41] <Loetmichel> i know
[17:45:46] <Jymmm> =)
[17:46:29] <Loetmichel> but our ship was only 70 meters long
[17:46:37] <Loetmichel> 700 tons
[17:46:47] <Loetmichel> metric tons
[17:47:35] <Loetmichel> and had 80 square meters diesel on board, enough for 5 days cruise speed (15 knots) or 24hrs "pedal to the metal"
[17:47:58] <Loetmichel> so without refuelling on sea: no chance to get anywhere near the equator
[17:48:13] <Loetmichel> not square, qubic
[17:49:27] <jdhNC> they should use tesseract fuel tanks
[17:49:41] <djdelorie> or a tardis
[17:50:20] <jdhNC> ok.
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[17:58:14] <chron0> heyho linuxcnclers...
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[18:07:52] <chron0> so, is anyone here using the mechapro nc-pilot usb interface with linuxcnc and cares to comment on performance, how does it compare to a "simple" parport interface connection? Do you get higher stepping frequencies? Is getting higher setpping frequencies really that important?
[18:08:22] <jdhNC> no USB with linuxcnc
[18:09:36] <chron0> interesting...
[18:09:44] <chron0> the wiki on http://linuxwiki.de/EMC
[18:09:50] -!- JT-Shop has quit [Ping timeout: 260 seconds]
[18:09:56] <chron0> states that nc-pilot would be supported...
[18:10:08] <chron0> but what do they know :)
[18:10:10] -!- jthornton has quit [Ping timeout: 256 seconds]
[18:10:13] <chron0> so good that I asked
[18:11:22] <jdhNC> I have no idea what that page says :)
[18:11:31] <chron0> sorry for that :)
[18:12:01] <chron0> I usually stay withing the english realm, but linux cnc isn't that widespread on the net unfortuanetly so I use every language I know to get results
[18:12:13] <jdhNC> me too.
[18:12:23] <jdhNC> but, being american, that limits me to en
[18:12:29] <chron0> hehe
[18:13:11] <andypugh> jdhNC: You can probably get by in Aussie and Brit.
[18:13:22] <jdhNC> what problem do you wish to solve with the USB device?
[18:13:26] <chron0> thats what I always say, we all non-english speaking people have to learn english to get our communications done, and you guys drop that awful imperial system and we all join together in world with english language and metric systems :)
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[18:13:43] <archivist> chron0, http://www.mechapro.de/step3d-e.html is parallel port should be ok
[18:13:52] <jdhNC> I'll go for taht, as long as we can keep F
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[18:14:56] <archivist> I google and found nc-pilot as cad/cam ? but was in an odd lingo
[18:15:03] <chron0> archivist: thanks , yeah I've seen that one before, I was specifically looking for USB possibilities since I am planning my first cnc device and I'm still somewhat in awe of the complexity and the stuff I'll have to learn on the way...
[18:15:11] <gene77> Hey Andy, at 250 revs, and a 28 tpi thread, is there a ruke of thumb for the 'E' value you give G76? I am seeing an error at the root of the thread like it can't pull back fast enough
[18:15:23] <gene77> Hey Andy, at 250 revs, and a 28 tpi thread, is there a rule of thumb for the 'E' value you give G76? I am seeing an error at the root of the thread like it can't pull back fast enough
[18:15:26] <jdhNC> http://www.mechapro.de/ncpilot.html
[18:15:30] <archivist> chron0, well usb has latency problems, avoid
[18:16:35] <chron0> so I was a bit unsure if the old parport connection would be the right investment or jump on the usb waggon - I don't even like usb - just the discussions about stepping frequencies and linux/parport hardware limitations
[18:17:12] <andypugh> USB doesn't fit the LinuxCNC way of doing things. I am sure it is perfectly usable for other ways of doing things. LoinuxCNC has the PC in absolute control of everything. USB means buffering everything and moving the motion control to the USB-connected hardware.
[18:17:12] <cpresser> chron0: i my personal opinion the parport is the best way to go for a beginner. its cheap and simple. and it works fine
[18:18:06] <andypugh> chron0: Parport is a bit old-hat. There are nummerous PCI, PCIE, PCIe, and even ISA options.
[18:18:48] <chron0> confused me quite a bit
[18:18:48] <chron0> I am currently having either the triplebeast or a parport controller + 4 MD556's in mind
[18:19:07] <andypugh> But I would start with a cheap Atom board with built-in parport then upgrade if and when you know what you need.
[18:19:20] <chron0> hehe, cheers for the feedback
[18:19:52] <chron0> I intend to run it from my laptop, since the circumstances won't allow a stationary computer for it
[18:20:21] <chron0> the mill will get a laptop docking cradle and if its time to work I'll run it from there
[18:20:36] <andypugh> I actually started with one of the eBay 4-axis cards. It blew up even before the machine was assembled, but it taught me enough to spec my next bit of hardware better ;-)
[18:20:54] <Tom_itx> http://www.ebay.com/itm/OFFER-WIN-RITTAL-AE-1380-ELECTRICAL-ENCLOSURE-READY-BOX-AE-1380?item=230799940306&cmd=ViewItem&_trksid=p5197.m7&_trkparms=algo%3DLVI%26itu%3DUCI%26otn%3D3%26po%3DLVI%26ps%3D63%26clkid%3D9064731879640856315
[18:20:54] <Tom_itx> hah
[18:20:59] <jdhNC> check the laptop for latency issues first.
[18:21:03] <Tom_itx> bit expensive
[18:21:15] <andypugh> Laptops can work OK, but they do have more than their share of issues.
[18:21:29] <chron0> exactly, thats why I had the triplebeast or MD556's in mind - they are probably quite a bit overpowered for my current design ideas, but when I "grow" I can keep them for bigger thing
[18:21:43] <Tom_itx> yeah laptop could be a bad idea for any number of reasons
[18:22:27] <chron0> I think my laptop are fine, both are heavily fine tuned and I'll probably just bake a special cnc-kernel with RTAI, so software is not really going to be the issue, more my lack of experience with CNC hardware :)
[18:23:19] <andypugh> Hmm: http://benezan-electronics.de/shop/product_info.php?cPath=1_4&products_id=61&osCsid=leyxmgqqd
[18:23:38] <chron0> jup
[18:23:40] <andypugh> Yes, looks like a good Eurozone option to the semi-ubiquitous G540
[18:23:43] <chron0> thats the triple beast
[18:24:00] <jdhNC> what is a triplebeast?
[18:24:07] <Tom_itx> 3 axis
[18:24:11] <andypugh> jdhNC: Up there
[18:24:14] <chron0> its the name of this combined controller driver thingy
[18:24:32] <Tom_itx> ethernet?
[18:24:34] <Tom_itx> wtf
[18:24:49] <chron0> I've read many posts where people recommended these, but I also found as many pointing towards the MD556 from leadshine...
[18:24:57] -!- rogge has quit [Ping timeout: 252 seconds]
[18:24:58] <chron0> no ethernet... just the same plug
[18:25:04] <Tom_itx> bad idea
[18:25:21] <jdhNC> looks nifty
[18:25:29] <chron0> then yo'll like this:
[18:25:33] <chron0> http://benezan-electronics.de/shop/product_info.php?cPath=8&products_id=51&osCsid=leyxmgqqd
[18:25:36] <andypugh> Mesa use the RJ45 for their add-on baords
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[18:25:52] <chron0> they use cat5 eth cable to connect the controller to the amp modules :)
[18:25:57] <chron0> I kinda like it :)
[18:26:19] <chron0> looks clean and neat and I've got hundreds to spare
[18:26:25] <andypugh> Quite
[18:26:36] <Tom_itx> it's fine as long as some numb nuts doesn't try to plug it into ethernet
[18:26:50] <andypugh> Worst it will do if plugged into Ethernet or vice-versa is not work.
[18:26:55] <chron0> well people who could that kind of mistake shouldn't be near this kind of machinery anways
[18:26:57] <Jymmm> Tom_itx: No, that's fine too. repeat sales =)
[18:27:08] <Tom_itx> ahh true
[18:28:04] <Tom_itx> i'm sure 1/4
[18:28:16] Cnc-Dau|work is now known as Cnc-Dau
[18:28:22] <Cnc-Dau> be back
[18:28:25] <chron0> wb
[18:28:30] <Tom_itx> i'm sure 1/4" phone jacks got used for all sorts of things back when
[18:28:46] <Tom_itx> helps to have a room light on when typing
[18:28:56] <chron0> yeah, probably even rocket controllers :)
[18:29:02] <Jymmm> Tom_itx: they short out when un/plugging though
[18:29:19] <chron0> rj11 wasn't it?
[18:29:28] <Tom_itx> Jymmm, repeat sales
[18:31:07] <Cnc-Dau> Loetmichel which is better, first or second : http://www.eleccircuit.com/uln2003-control-stepper-motor-by-parallel-port/ ?
[18:33:06] <Loetmichel> both bad
[18:33:25] <Cnc-Dau> which else ?
[18:33:38] <Loetmichel> use something like L297/L298 or TB6560 if you are adventourus
[18:34:24] <Cnc-Dau> i only have this hardware :-(
[18:34:44] -!- skunkworks has quit [Ping timeout: 245 seconds]
[18:34:47] <Loetmichel> Cnc-Dau: how old are you?
[18:34:55] <Cnc-Dau> 38
[18:35:00] <Loetmichel> hmmm
[18:35:12] <Loetmichel> and nothing to spend?
[18:35:16] <Tom_itx> heh
[18:36:19] <Connor> Ouch.
[18:36:56] <Connor> Loetmichel: Some people have budgets, Or Allowances.
[18:37:10] <Cnc-Dau> no, I have health problems
[18:39:03] <Loetmichel> Connor: i asked because i would understand if a school kid with $5 weekly allowance cant pay for a cheap chinese driver board
[18:39:40] <Loetmichel> ok, if you are currently unemployed it may be as tight moneywise as the school kid
[18:40:01] <Connor> Loetmichel: I understand. I myself have a $100.00 a month budget. So, I have to save up a few months at a time to get anything.
[18:40:50] <jdhNC> skip the indexable lathe tooling :)
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[18:41:29] <Jymmm> Heh, I like the cart http://www.casitaclub.com/forums/index.php?app=core&module=attach&section=attach&attach_rel_module=post&attach_id=18633
[18:42:02] <Jymmm> and milk crates make PERFECT 20# propane tank holders too =)
[18:42:10] <Loetmichel> hmmm... just checked my bak account... alreade 100 eur in the red... *shi* and the month is not half gone ;-)
[18:42:21] <Connor> jdhNC: Who? Me ?
[18:42:29] <Jymmm> Loetmichel: Hold old are you?
[18:42:31] <Jymmm> how
[18:42:36] <Loetmichel> 43
[18:42:44] * Jymmm guesses 11
[18:42:50] <Jymmm> ;)
[18:42:53] <andypugh> Cnc-Dau: ULN2003 is very cheap, but can only drive unipolar motors and with no current control.
[18:43:26] <Jymmm> Loetmichel: Well, sounds like it's type to put on your fishnet stockings and to hit the sidewalk!
[18:43:32] <Jymmm> s/type/time/
[18:43:52] <Jymmm> Loetmichel: Work it baby, work it, work it!
[18:44:03] <Jymmm> Loetmichel: Shake your money maker!
[18:44:28] <Loetmichel> Jymmm: fortunatly my wife payd for the rent and all other expenses, my own salary is for my cellphone bill, my car and the rest ist free to send for me ;-)
[18:44:46] <Loetmichel> so no need to starve if the account is empty ;-)
[18:44:55] <Jymmm> Loetmichel: Ah, so you REALLY ARE DA HO!
[18:45:08] <Loetmichel> s/send/spend
[18:45:08] <Jymmm> Loetmichel: or gigalo =)
[18:45:17] <Loetmichel> gigolo with a WIFE?
[18:45:36] <Loetmichel> no, my wife is just earning three timey my salary
[18:45:38] <Jymmm> Loetmichel: Hey, it takes all kinds =)
[18:45:56] <andypugh> Cnc-Dau: http://www.ebay.de/itm/TB6560AHQ-/120929254229?pt=Bauteile&hash=item1c27f1fb55#ht_500wt_1413
[18:46:03] <Connor> So Jymmm, How old are YOU?
[18:46:10] * jdhNC guesses... 11
[18:46:12] <Loetmichel> andypugh: to expensive
[18:46:16] <Jymmm> 9
[18:46:21] <andypugh> Maybe 14
[18:46:24] <Loetmichel> bought 5 lately for under 5 Eur each
[18:46:47] <andypugh> Just saying that that is a far better option than a ULN2003
[18:47:57] <Loetmichel> Jymmm: and for real: do you thing THIS body woud earn something on the streets? I seriously doubt it... -> http://www.cyrom.org/palbum/main.php?g2_itemId=12346
[18:48:00] <Loetmichel> ;-)
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[18:48:41] <Jymmm> Loetmichel: Hey, there are a LOT of freaks out there, I'm sure that at least ONE would think you have a purrrty mouth ;) LOL
[18:48:46] <jdhNC> Loetmichel:Rule 34
[18:48:48] <Cnc-Dau> L297/L298 search result at ebay 0 ; TB6560 from 40�, so at the moment not payable.
[18:49:04] <mozmck> Jymmm: you're too dirty-minded to be only 9
[18:49:05] <Loetmichel> jdhNC:?
[18:49:38] <jdhNC> google it.
[18:50:06] <Loetmichel> jdhNC: hrhr
[18:50:14] <Jymmm> mozmck: You would think so, but sadly there was an article in the newspaper a ways back saying that 6yo's in school were going hand jobs.
[18:50:31] <chron0> rule 34 ftw!
[18:50:45] <mozmck> that's really sad
[18:50:49] <tom3p> glad to chg the subject... does kent reed come in here? (looking for his hal2html script)
[18:51:30] <Connor> tom3p: Please DO change the subject... if I wanted this kind of stuff, I would goto #xxx channel.
[18:51:38] <tom3p> trying
[18:52:36] <Tom_itx> https://sites.google.com/site/manisbutareed/visualizing-emc2-configurations/details-part-3
[18:52:44] <mozmck> tom3p: good! I don't know if he is or not. He's on the mailing list though.
[18:52:47] <Jymmm> mozmck: Sorry, 7yo were having oral sex. http://californiawatch.org/dailyreport/oakland-preschooler-molested-classmate-family-says-11969
[18:52:57] <tom3p> yep, thx, but i dont see the code :(
[18:52:59] <Tom_itx> tom3p, try that
[18:53:10] <mozmck> Jymmm: yuck, I didn't even want to know that...
[18:53:14] <tom3p> Tom_itx, thx
[18:53:25] <Connor> jdhNC: Did you say you ordered some of those micro switches from CNC4PC ?
[18:53:43] <Jymmm> mozmck: I know, I know, but I think it's better to be aware of such things for those "what if" moments.
[18:53:47] <jdhNC> connor: yeah, they look good, but are kind of large (for X anyway)
[18:54:06] <Connor> How large ?
[18:54:56] <jdhNC> maybe 50% or more bigger than the little radio shack ones.
[18:55:10] <Connor> okay, Thats not bad.
[18:55:38] <jdhNC> http://www.cnc4pc.com/Store/osc/images/A7_1.jpg
[18:55:54] <Connor> Yea, hard to tell the size though.
[18:56:11] <jdhNC> I can measure one later.
[18:56:19] <Connor> k
[18:56:27] <Jymmm> Cnc-Dau: Do you think you can afford $21 USD and free shipping? http://www.suntekstore.com/goods-14002580-l298n_dual_h_bridge_stepper_motor_driver_controller_board_module.html
[18:57:19] <Connor> So, I DL and install Mach3 on my VM just to take a look at it..
[18:57:23] <jdhNC> I ordered a smaller prox switch with the sensor on 'top' to see if it woudl fit for X
[18:57:24] <Connor> I have to say.. ICK...
[18:57:52] <Connor> The interface looks overly complicated and over done.
[18:58:46] <Connor> Mix Mash of normal buttons + strange buttons with crappy graphic overlays.
[18:59:01] <jdhNC> uxcell.com had cheap single stepper drivers too but they seem to be dead at the moment.
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[19:00:30] <Jymmm> Cnc-Dau: Two of these for $17 http://www.suntekstore.com/goods-14003460-l298n_dual_h-bridge_dc_stepper_motor_driver_module_smart_car_driver.html
[19:01:11] <Jymmm> Hmmm, only 5V though
[19:01:14] <Jymmm> nm
[19:02:08] <Tom_itx> where's a good cheap source for those industrial control buttons?
[19:03:02] <Cnc-Dau> stepper has 12V 0,16A.....
[19:04:31] <Loetmichel> Cnc-Dau: i would send you some bigger steppers for free, but i have no driver board to spare...
[19:04:38] <Jymmm> Tom_itx: http://www.suntekstore.com/goods-14002886-ui_600v_ith_10a_emergency_stop_switch_push_button_switch_mushroom_push_button.html
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[19:05:32] <Jymmm> http://www.suntekstore.com/goods-14004183-la38-11_1no_1nc_push_button_switch_momentary_press_switch.html
[19:05:42] <Loetmichel> and at the moment i am angering about a mega8... is it possible that this chip has not ONE whole 8bit wide port without dual use as Xtal or serial?
[19:05:46] <Jymmm> http://www.suntekstore.com/goods-14004184-2_position_no_nc_selector_siwtch_rotary_switch_la38-11x2.html
[19:06:44] <Jymmm> carbide bits http://www.suntekstore.com/goods-14002059-10pcs_v-shape_carbide_flat_bottom_engraving_bits.html
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[19:09:14] <Cnc-Dau> Jymmm, on http://www.bm-kfz.de/cnc/you can see what I have in hardware. 3 Stepper and the original control.
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[19:12:41] <Jymmm> Cnc-Dau: Yes, you CAN use a crowbar to remove a screw. That doesn't always make it the right tool for the job.
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[19:17:46] <Cnc-Dau> http://www.ebay.de/itm/3-Axis-TB6560-Schrittmotor-Steuerkarte-Antrieb-12-36V-/130702070097?pt=DE_Computer_Sonstige&hash=item1e6e735151 is this ok ?
[19:18:46] <Connor> That'll get the job done. You might want to change out a few components to make it work better. (The capacitors for the timing)
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[19:20:45] <andypugh> Tom_itx: Industrial buttons are fairly expensive, try eBay for "arcade buttons" and you will find a large range, all rather cheap, and designed to be mashed by angry teenagers.
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[19:22:12] <andypugh> Tom_itx: Ideal jog buttons? http://www.ebay.com/itm/180809510527
[19:22:50] <Jymmm> http://www.dealextreme.com/p/red-indicator-light-engine-push-start-button-set-for-auto-refitting-dc-12v-24560
[19:22:57] <Cnc-Dau> or is there somewhere something fitting this faster to cover and is cheaper?
[19:23:07] <Jymmm> http://www.dealextreme.com/p/blue-indicator-light-engine-push-start-button-set-for-auto-refitting-dc-12v-24561
[19:23:31] <frallzor> tips on Alu-removal on tools? =)
[19:23:47] <frallzor> seems like a nice idea to refresh alu-cutting tools once in a while
[19:24:13] <Jymmm> http://www.dealextreme.com/p/r16-503-16mm-self-locking-push-button-switch-w-indicator-green-black-220v-5-piece-pack-123934
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[19:25:00] <Loetmichel> frallzor: NAOH 30%
[19:25:09] <Loetmichel> half a day and the aluminium is gone
[19:25:27] <Loetmichel> and steel wil not be eaten
[19:25:39] <Loetmichel> (but skin WILL, use gloves!)
[19:25:43] <frallzor> NAOH = drain cleaner pretty much?
[19:25:47] <Loetmichel> right
[19:26:09] <frallzor> ah used that when trying to anodize
[19:26:11] <Jymmm> frallzor: NO3 and you dont have to wait =)
[19:26:24] <frallzor> Ill stick with NAOH =P
[19:26:25] <Jymmm> well NH4NO3
[19:27:33] <frallzor> naoh wont eat the tool itself or any coating right?
[19:27:38] <frallzor> *NAOH
[19:28:19] <Jymmm> frallzor: NH4NO3 won't eat the tool or coating either.
[19:28:34] <Jymmm> frallzor: Because there will be no tool left to eat =)
[19:28:41] <Loetmichel> hrhr
[19:29:02] <frallzor> well if it evaporates, its pretty much eaten ;)
[19:29:18] <Jymmm> frallzor: Nope, doens't evporate =)
[19:29:34] <Loetmichel> frallzor: you know what anfo is?
[19:29:41] <frallzor> no idea
[19:29:48] <Loetmichel> Jymmm: more like desintegrate ;-)
[19:29:59] <Loetmichel> Ammonium nitrate fuel oil
[19:30:07] <Jymmm> frallzor: you ever see those 11 story building fall to the ground?
[19:30:15] <Loetmichel> NH4O3 + diesel
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[19:30:21] <Loetmichel> = *BOOOM*
[19:30:23] <Loetmichel> ;-)
[19:30:32] <Jymmm> BIG ASS BOOM!
[19:30:35] <frallzor> kapoow
[19:30:42] <Jymmm> frallzor: It's an explosive
[19:30:49] <Jymmm> ANFO that is
[19:31:12] <Jymmm> frallzor: http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=7&ved=0CGsQtwIwBg&url=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DccQ9vkLrvfo&ei=MkbWT4n_CcfU2QXR0pmGDw&usg=AFQjCNGa_LDivc35_u0i1vEnaJlBSuB48g
[19:31:19] <Jymmm> ah fuck
[19:31:27] <Jymmm> frallzor: www.youtube.com/watch?v=ccQ9vkLrvfo
[19:31:44] <Jymmm> damn google
[19:31:50] <Jymmm> frallzor: http://www.youtube.com/watch?v=ccQ9vkLrvfo
[19:32:12] <Jymmm> http://www.youtube.com/watch?v=D6PGKcVr-8s
[19:33:28] <Loetmichel> ammonium nitrate is a chemical i would keep my distance
[19:33:46] <Jymmm> Loetmichel: Wanna beet?
[19:33:49] <Jymmm> bet
[19:33:58] <Loetmichel> bet what?
[19:34:07] <Jymmm> Loetmichel: $20 USD via Paypal
[19:34:22] <Loetmichel> bet on what topic?
[19:34:53] <Jymmm> Loetmichel: That you do NOT keep your distance from ammonium nitrate
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[19:35:18] <Loetmichel> i try to
[19:35:29] <Jymmm> Loetmichel: $20 says you really dont
[19:35:58] <Jymmm> =)
[19:35:59] <Loetmichel> and as i am not in the growing plants OR destruct buildings business i think i CAN keep it ;-)
[19:36:20] <Jymmm> Loetmichel: Well, you want to put your money where your mouth is?
[19:36:31] <Loetmichel> no, i dont bet.
[19:36:35] <Jymmm> lol
[19:36:44] <Jymmm> you would have lost btw =)
[19:36:54] <Loetmichel> especially not when someone SO desperate trying to get me to
[19:37:36] <Loetmichel> ...i may be old, i may be german, but i am NOT stupid ;-)
[19:37:39] <Jymmm> See, we have al these fancy names for stuff, but don't realize how common they really are in and around our home/work
[19:38:15] <Loetmichel> so? whre is amonium nitrate used? other than gardening and as a explosive?
[19:38:20] <Loetmichel> enlighten me ;-)
[19:38:22] <Jymmm> Loetmichel: ammonium nitrate is the stuff in instant cold packs =)
[19:38:39] <Loetmichel> no problem: nowhre here
[19:38:47] <Jymmm> so any good first aid kit will have some
[19:38:54] <Loetmichel> no, none here
[19:38:56] <mrsun> gah broke of the HM threading tool .. im doing something wrong :P
[19:39:08] <Jymmm> Loetmichel: well, you suck!
[19:39:16] <Loetmichel> mrsun: hm threading tool? sonds expensive
[19:39:20] <Loetmichel> sounds
[19:39:20] <Jymmm> Loetmichel: go cut off a toe or something =)
[19:39:26] <mrsun> carbide
[19:39:30] <mrsun> isnt that hard metal ? :P
[19:39:43] <mrsun> gonna grind myself a hss tool i think to learn with
[19:39:52] <Jymmm> it's brittle
[19:40:00] <Jymmm> r
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[19:40:06] <Loetmichel> Jymmm: dont like to. but if i did accidentally i have plenty of ice cubes in the fridge
[19:40:12] <Loetmichel> and some plastic bags
[19:40:16] <frallzor> its strong but not flexible
[19:40:20] <frallzor> like HSS
[19:40:45] <Jymmm> Loetmichel: Not good in the car though =)
[19:40:54] <Loetmichel> so what?
[19:41:03] <mrsun> had quite a bit of tool preasure on aparently .. tilted the whole carriage for me :/
[19:41:09] <Jymmm> Loetmichel: you never leave your home?
[19:41:24] <Loetmichel> no, i dont have that bad accidents ;-)
[19:41:46] <Jymmm> Loetmichel: you've never sprained an ankle?
[19:41:53] <Loetmichel> sometimes i mill a 3mm hole in my thumb or bandsaw off the tip of it
[19:41:57] <frallzor> spayed an ankle!
[19:41:58] <Loetmichel> no
[19:42:00] <Loetmichel> never
[19:42:03] <mrsun> and now i saw how huge wear there is on the leadscrew
[19:42:10] <mrsun> im off by half a thread at 8tpi when backing off :P
[19:42:12] <mrsun> it looks like
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[19:42:14] <Loetmichel> broken an arm once
[19:42:18] <Jymmm> Loetmichel: Then go GET A LIFE and come back when you do!
[19:42:19] <Loetmichel> thats all
[19:42:35] <Loetmichel> Jymmm: you are starting to get annoying
[19:43:00] <Jymmm> Loetmichel: I haven't even warmed up yet
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[19:43:07] <frallzor> he allawys is, but we still love him
[19:43:14] <frallzor> *allways
[19:43:20] <Jymmm> frallzor: love, hate, it's a fine line.
[19:43:31] <Loetmichel> and i have fallen 6 metres from a light rig to concrete ground... nothing but some blue and black body parts ;-)
[19:43:39] <frallzor> we hate loving you and love hating you
[19:43:49] <Loetmichel> i dont get hurt normally ;-)
[19:44:04] <Jymmm> Loetmichel: fine, so you double as a tree climbin gorilla, the rest of us aren't so talented =)
[19:45:17] <Loetmichel> no, i just happen to be hard to hurt ;-)
[19:45:25] <Jymmm> lol
[19:45:40] <Loetmichel> ( i was working at a stage rental company at that time)
[19:49:07] <chron0> so the mathematician would say: "You seem to be stastically overlucky in a simple game of chance", the priest would say: "You have a guardian angel, son" and the comic nerd would say: "I finally found superman on irc" :)
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[19:51:06] <Loetmichel> chron0: more like batman ;-)
[19:51:37] <Loetmichel> and no, i have no bones of steel like a co-worker once saif
[19:51:39] <Loetmichel> said
[19:51:50] <chron0> well if you like batman bertter feel free to associate with whatever you like :)
[19:52:06] <Loetmichel> just good reflexes and enough fat to upholster the bones ;-)
[19:52:21] <Jymmm> lol
[19:52:26] <jdhNC> it's all in the reflexes, wang
[19:52:40] <chron0> yeah, I've never broken anybone in my body up until now either, and I fell a lot :)
[19:52:42] <frallzor> I prefer Robin
[19:52:45] * Loetmichel grabs the bottle out of the air ;-)
[19:52:47] <frallzor> he doesnt seem like a total cunt
[19:53:22] <jdhNC> very good!
[19:54:16] <Jymmm> frallzor: A boy wearing tights following a man wearing laytex?
[19:54:19] <chron0> I always suspect it's that my mother forced me to train judo and although I've never liked any kind of fighting sport I feel my reflexes kicking in when I fall all the time to soften my impact, only my arms, and mainly the hands hurt a bit from the coutnerimpact
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[19:55:00] <frallzor> Jymmm I bet Batman started the following
[19:55:18] <frallzor> Robin in such a jail bait
[19:55:20] <Jymmm> frallzor: nfc
[19:55:51] <frallzor> of course Batman cant reveal himself with his "taste for toddlers"
[19:56:17] <frallzor> Alfred must be scared shitless to keep quiet
[19:56:18] <chron0> so anyways, is anyone here successfully using the leadshine MD556 digital stepper modules with emc?
[19:56:43] <DJ9DJ> what is emc? - ah, you mean linuxcnc! ;-)
[19:56:57] <chron0> i knew that troll was coming, I can predict the future :)
[19:57:06] <DJ9DJ> lol
[19:57:14] <DJ9DJ> let us know
[19:57:20] <chron0> it's a pity about the name though, I really liked the ring of it
[19:59:23] <DJ9DJ> indeed
[19:59:54] <chron0> what was it about, emc the storage company?
[20:00:03] <chron0> or who complained?
[20:16:42] <Jymmm> attorneys
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[20:17:22] <chron0> well it for sure weren't engineers, most problems are created by lawyers
[20:17:22] <frallzor> only in America
[20:18:29] <chron0> but most of the time they used to "represent" clients with a complain, or was this just one of these bored lawyers are looking for IP/Trademark problems they can create?
[20:19:08] <archivist> they registered emc2 then came after us
[20:19:14] <chron0> wtf
[20:19:28] <archivist> long after our use
[20:20:15] <chron0> goes to show how money is lever and catalyst...
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[20:32:00] <DJ9DJ> gn8
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[20:41:46] <andypugh> chron0: I might be. Do I need to go look?
[20:43:10] <andypugh> Ah, no, 542 and 752 here
[20:48:09] <andypugh> I need to find a better way to start this PC up than shorting two pins with a screwdriver.
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[21:08:45] <Tom_itx> andypugh use pliers?
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[21:09:38] <sendoushi> hey hey
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[21:18:41] <roycroft> short them with a pair of needlenose pliers, andypugh
[21:18:53] <roycroft> oh, sorry, tom_itx
[21:19:01] * roycroft should read all his scroll before responding to any of it
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[21:35:57] <mrsun> andypugh, haha =) standard =)
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[21:43:29] <chron0> andypugh: thanks dude, much obliged anyways, I'm reading about these dm556 they seem to be dsp controlled "digital" microstep amps that supposedly control the stepper much better, less noisy and with less heat and power consumption... sounds pretty decent but I'm still lost here atm
[21:44:31] <andypugh> My old-school Leadshine amps are fine. I doubt that the new ones will be worse.
[21:48:26] <chron0> ack
[21:49:24] <chron0> I think I'll go for these, since they also offer a serial interface to "tune" each motor specifically to its operating condition :)
[21:49:49] <chron0> just need to hack up a cable since they want 10$ for a db9 to rj11 cable...
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[21:50:41] <jd896> Hi guys
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[21:56:17] <andypugh> Hi
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[21:59:00] <jd896_laptop> hi andy
[22:00:27] <jd896_laptop> as far as mdi buttons go i could do a set zero button eg g92 x0 y0 id there a way i could undo and reset to the true machine zero in an mdi command
[22:00:36] <jd896_laptop> i mean in a button
[22:01:39] <andypugh> I think so. Anything you can do in G-code can be linked to an MDI_COMMAND as it can call an O-word sub.
[22:03:02] <cpresser> i guess "G92.22 in an mdi-command will do
[22:03:47] <jd896_laptop> is that g92.22 is the reverse of g92 x0 y0
[22:04:48] <andypugh> What do you actually want to do?
[22:05:20] <cpresser> http://www.linuxcnc.org/docview/html/gcode/gcode.html#sec:G92-G92.1-G92.2-G92.3
[22:05:41] <cpresser> so far, i did not know that there was a g92 command for offsets
[22:06:27] <andypugh> Can you describe what result you want from the button?
[22:08:09] <cpresser> if you want to 'zero' the coordinates on your workpiece you would better use G54 and G10L20 (touch off) commands
[22:08:09] <jd896_laptop> just for the plasma i could just have the post make absolute programs and use 92 to set plate corner and then g92.1 or g92.2 to reset to zero without knowing what the offset was to start
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[22:09:22] <jd896_laptop> main problem is i dont know enough about g code (last plasma control was in essi)
[22:09:55] <cpresser> read this page :) http://www.linuxcnc.org/docview/html/gcode/gcode.html
[22:09:58] <jd896_laptop> also i thought to remove the g92 ofset you had to know what the offset was set too
[22:10:16] <cpresser> (you may skip any codes you dont use)
[22:10:22] <jd896_laptop> yeah i had just looked for it when you said about g92.2
[22:10:34] <jd896_laptop> should have looked first
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[22:11:03] <cpresser> i am not 100% sure i understand your application; but i would go with 'touch off' and G54
[22:11:13] <andypugh> jd896_laptop: I have a few G-code routines like that. You jog / g0 to where you want to have the centre of a connector cutout, then call the sub. The first thing it does is G92 to 0,0, then works in the offset frame, then goes back to normal afterwards.
[22:11:56] <cpresser> thats the usual way to do align the coordinates of the gcode to your workpiece
[22:12:25] <jd896_laptop> would this be different being that i only use x and y (no z)
[22:14:59] <jd896_laptop> yes andy thats like what i wanted, ie jog torch to corner of plate and press zet zero button (mdi g92 x0 y0) then at the end of the file press other button to clear (mdi g92.1)
[22:16:05] <cpresser> you could use both. "G10 L20 X0 Y0", or "G92 X0 Y0"
[22:16:55] <cpresser> actually i dont understand the concept of G92.. why would i need G92 if i already have G54..G59?
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[22:18:57] <andypugh> You might typically use G54 and froends for fixtures (face of the chuck, centre of a rotary, the corner of a vice). G92 is expected to be rather more transient.
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[22:20:43] <cpresser> if thats the basic idea, why does the touch-off button in the axis-gui work on G54? wouldnt it be better to use G92 for that?
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[22:21:19] <cpresser> actually i am using G54 as 'transient' system, i set the coordinates for each job i run :)
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[22:21:26] <andypugh> I think you would normally expect to only touch-off the tools.
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[22:38:15] <JT-Shop> normal service has been restored :-)
[22:39:06] <Jymmm> JT-Shop: So the cathouse is now fully operational again?
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[22:39:48] <JT-Shop> yea, a tree fell over the power line at my neighbors house during the storm so been down since 13:06
[22:40:23] <Jymmm> ah
[22:41:18] <WillenCMD> hey everyone! another 4 hours to spend struggling with writing a gui today!
[22:41:48] <andypugh> Have you seen the all-glade GUI that someone is working on?
[22:41:53] <JT-Shop> I kept wondering what would have been faster, connect up the generator or play mahjong till the lights came back on
[22:41:58] <archivist> just use one of the guis available!
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[22:42:28] <WillenCMD> i can't
[22:42:46] <JT-Shop> have fun then
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[22:44:03] <andypugh> WillenCMD: http://www.linuxcnc.org/index.php/english/component/kunena/?func=view&catid=41&id=17806
[22:44:12] <WillenCMD> i recently started a machine design company and the two machines i am designing for my customer are simple machines. I was using cough cough mach3, its very simple to make a gui. But in efforts to cut cost and licensing fee's i switched
[22:44:33] <andypugh> You should find that a reasonable starting point, and you can edit/change it in Galde.
[22:44:34] <jd896_laptop> andy, cpresser, could the g54-g59.3 set be used as a plate squaring system some burny profiler controls alow you to tell it three corners of the plate and it off sets and rotates the program to sute could the g54 type be used for this?
[22:44:36] <andypugh> Glade, even
[22:44:45] <JT-Shop> I switched to get a better control software
[22:45:11] <andypugh> WillenCMD: Do the machines read G-code?
[22:45:18] <JT-Shop> andypugh: can't you do almost anything in gladevcp?
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[22:46:42] <andypugh> jd896_laptop: Yes. I think so. You would need three buttons to read in the corners, then you can use the R word in a G54 to rotate around Z. I think.
[22:47:28] <jd896_laptop> ah and this would set the new zero and rotate the program nice
[22:48:19] <JT-Shop> jd896_laptop: you do need to be at X0 Y0 when you set the rotation or it is interesting
[22:49:04] <jd896_laptop> oh so not as easy as say having button 1,2,3, to set each corner of the plate
[22:49:59] <JT-Shop> so you want to slap a plate up on the table and pick 3 corners to define the rotation?
[22:50:33] <jd896_laptop> if it would be that easy
[22:51:00] <JT-Shop> won't 2 points give you the axis skew?
[22:51:17] <cpresser> jd896_laptop: can be done. it just needs some thinking and coding. and: 2 points will suffice ;)
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[22:51:41] <JT-Shop> using right angle triangle to figure the angle would be sorta simple
[22:51:42] <jd896_laptop> a 4000x2000x25 mm plate say is not so easy to move into the perfect
[22:51:50] <JT-Shop> sure
[22:52:22] <JT-Shop> so you pick two points on the Y axis and the distance then compute the angle with the last point being Y0 X0
[22:52:51] <JT-Shop> you could do that with ngcgui
[22:53:28] <jd896_laptop> and have it set the control offsets ready for the program run ?
[22:53:58] <JT-Shop> yea using G10 L2 to set the coordinate system after the calculation
[22:55:17] <JT-Shop> as I see it in my minds eye you jog to the far Y corner and press the magic key to record that location then jog to the near Y corner and press the magic key to record that then finalize and run and your set
[22:55:41] <JT-Shop> take longer to jog from corner to corner
[22:56:45] <JT-Shop> jd896_laptop: are you using ngcgui now?
[22:56:55] <jd896_laptop> no john
[22:58:19] <JT-Shop> darn
[22:58:36] <jd896_laptop> why use diffenernt corners? wont the same edge of the plate do front to back wouldnt this still give the rotation
[22:58:56] <jd896_laptop> isnt ngcgui a set of subroutines
[22:59:07] <jd896_laptop> in a round about way
[22:59:22] <JT-Shop> yea, for example the left rear and left front corners so you know the skew from Y axis
[22:59:52] <JT-Shop> yea, ngcgui is subroutines but much more powerful than just a sub
[22:59:55] <jd896_laptop> yeah i thought you ment the say right rear corner and left front
[23:00:06] <JT-Shop> no
[23:00:26] <JT-Shop> eek that would be a mess if you did that
[23:01:09] <jd896_laptop> yeah i thought so how hard to impliment is it and how useful other than plate rotation would it be on a plasma
[23:02:03] <JT-Shop> I use it for plate trim, box, circle now on the plasma
[23:02:20] <JT-Shop> you using 2.5?
[23:03:18] <andypugh> jd896_laptop: Button 1 stores XY. Button 2 stores XY, does some calcs, sets G54 with Skew. All pretty easy. You could even have it spot whether you had jogged X or Y the most and align to the longest one.
[23:03:19] <jd896_laptop> yeah so you could knock up a base plate with four fixig holes in ngc just on the machine then
[23:03:54] <JT-Shop> yea
[23:04:09] <JT-Shop> andypugh: in python?
[23:04:33] <jd896_laptop> nice andy so i could job as i please to line upp
[23:06:15] <andypugh> JT-Shop: Two G-code routines using global variables ought to work.
[23:06:21] <alex4nder> hey
[23:06:53] <JT-Shop> ok, with MDI commands from halui?
[23:07:09] <JT-Shop> hay
[23:08:10] <JT-Shop> will global paramaters stay alive after a subroutine is finished?
[23:08:52] <JT-Shop> jd896_laptop: in any case make sure you set the rotation back to 0 when done
[23:10:36] <jd896_laptop> yeah i forgot when i set g92 the first time i used it
[23:10:56] <JT-Shop> yea, I did that a few times too
[23:12:30] <JT-Shop> jd896_laptop: in any case I'm interested enough to have that for my plasma so I will work on it...
[23:12:35] <jd896_laptop> yeah good job its only a plasma and not a mill
[23:13:25] <jd896_laptop> oh nice one john glad i can spark ideas even if i carnt pull them off
[23:13:46] <JT-Shop> everyone benifits from bashing ideas about
[23:14:44] <jd896_laptop> yeah also the feedrate setting has just poped back into my head did anybody comeup with anythign for that can it be done ?
[23:17:58] <JT-Shop> what was the question?
[23:19:40] <jd896_laptop> having a cutting speed box onscreen to set feed rate when torch on
[23:21:06] <jd896_laptop> well basically having a box to pass a number to a subroutine to set the feed till my end cut sub clears the feed rate to allow rapid to start of next cut
[23:21:17] <jd896_laptop> +
[23:22:40] <JT-Shop> you can do that with feed override only iirc
[23:22:47] <andypugh> You can't use the adaptive-feed pins?
[23:23:01] <JT-Shop> andypugh: seems the global parameters die between subs
[23:24:34] <JT-Shop> maybe not I used the wrong parameter
[23:25:25] <JT-Shop> aye they live so it is possible
[23:25:35] <andypugh> #31+ should be global
[23:26:04] <JT-Shop> I was using the wrong parameter to get current position
[23:27:01] <andypugh> #5161 to 5390 are not just global, they are persistent through reboot...
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[23:27:28] <Tom_itx> what's up with freeenode today?
[23:31:52] <jd896_laptop> andypugh is that for the zero offset and rotate
[23:33:09] <JT-Shop> those are read only parameters
[23:33:11] <andypugh> No, that is just a parameter range availiable to the G-code programmer to store things. You could store your part-count there, for example.
[23:33:24] <andypugh> Maybe I am missreading the docs.
[23:33:29] <jd896_laptop> ah
[23:33:30] <JT-Shop> aye
[23:34:06] <JT-Shop> I have the two subs recording the coordinates just need to do the math now
[23:34:30] <JT-Shop> jd896_laptop: do you generally use front left corner as XY zero?
[23:34:49] <jd896_laptop> john isnt that where the g54-g59 cordinates are sored for offsets dosnt that mean they carnt be read only
[23:35:23] <JT-Shop> they are read only as you can't set them the system sets them iirc
[23:35:30] <andypugh> I have a feeling that you can add parameters to the vars file to make them persistent. Bear with me..
[23:35:50] <JT-Shop> yes, I am successful at that using named globals
[23:36:13] <JT-Shop> #<_start-x> will be global due to the _
[23:40:59] <jdhNC> connor?
[23:41:26] <andypugh> Aha! You can add numbered parameters to the confi.var file, and they become persistent (I just did it to #4000)
[23:41:40] <JT-Shop> cool!
[23:41:45] <Tom_itx> after touch off can you have the parameters auto saved to a fixture offset?
[23:42:10] <JT-Shop> in g code yes you can do that
[23:42:52] <andypugh> It appears not to work for named parameters, but never mind.
[23:43:11] <JT-Shop> it worked for me using a named parameter
[23:43:29] <andypugh> What, making it persistent between reboots?
[23:43:44] <JT-Shop> oh no just persistent between subs
[23:44:25] <Tom_itx> what do you mean by persistent?
[23:44:46] <Tom_itx> the termonology is foreign to programming to me anyway
[23:44:48] <andypugh> Tom_itx: We mean two different things :-)
[23:45:08] <Tom_itx> visibility?
[23:45:12] <JT-Shop> you know good cop, bad cop
[23:45:16] <andypugh> JT is talking about scoping, but I am talking about persistence
[23:45:32] <JT-Shop> stay alive
[23:46:35] <jd896_laptop> andy, john im off to bed night all
[23:46:58] <andypugh> Yeah, good plan, me too.
[23:47:28] <jd896_laptop> getting early over here isnt it
[23:47:30] <JT-Shop> ok check back tomorrow
[23:47:49] <JT-Shop> I should have a two button solution by then
[23:48:09] <jd896_laptop> sweet :-)
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