Back
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[00:11:50] <Connor> What's the easiest way to dial in a a chuck on a rotary table..
[00:17:14] <Tom_itx> put a dowel in it and a last word indicator on the dowel
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[00:34:19] <jp_> seen awallin_
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[00:49:21] <Connor> last word indicator
[00:49:24] <Connor> ?
[00:49:28] <Tom_itx> yes
[00:50:37] <Tom_itx> http://www.travers.com/skulist.asp?r=s&n=||UserSearch1%3Dlast+word&q=block+id+87243+and+class+level3+id+29629
[00:50:59] <Connor> How is that different than a DTI ?
[00:51:11] <Tom_itx> finer
[00:51:33] <Tom_itx> travel is probably 1/8"
[00:51:48] <Connor> Well.. I don't have one of those.. a just of a DTI that's good for .0005"
[00:52:38] <Tom_itx> well use what you got then
[00:53:08] <Connor> Best to do it with the table flat or on end ?
[00:53:33] <ReadError> if you have 2 holes
[00:53:46] <ReadError> whats the easiest way to find the distance between them
[00:53:50] <ReadError> measure ID/OD ?
[00:53:53] <ReadError> and do the math?
[00:54:00] <Tom_itx> ReadError, measure the hole
[00:54:04] <Tom_itx> zero the dial indicator
[00:54:10] <Tom_itx> measure between the holes
[00:54:15] <Tom_itx> you will have the center distance
[00:54:21] <Tom_itx> provided the holes are the same diameter
[00:54:58] <Tom_itx> just don't forget to re'zero it before you try to use it for something else
[00:55:50] <ReadError> i have been using calipers
[00:56:09] <ReadError> but that is assuming the top of the hole is the actual diameter
[00:56:18] <ReadError> these china parts sometimes have a bit of a flair
[00:56:29] <Tom_itx> another way, measure between holes then subtract one diameter
[01:00:07] <cradek> I like to measure inner and outer and average the two numbers
[01:01:04] <Tom_itx> yeah probably a bit more accurate that way
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[01:01:16] <ReadError> yea thats what i have been doing
[01:01:25] <cradek> I think those are the two easiest measurements to make
[01:01:50] <Tom_itx> if i want exact, i let the cad do it for me
[01:02:02] <ReadError> wasnt sure if they had a sweet tool that has like points
[01:02:07] <ReadError> that you could depress into each hole
[01:02:09] <Tom_itx> unless you're trying to reproduce a part
[01:02:11] <ReadError> and it measures that way
[01:02:24] <Tom_itx> ReadError it's called a CMM
[01:02:49] <cradek> they have cones that go on caliper jaws, but they probably don't really help
[01:03:25] <cradek> if your mill is good and tight, you can put a probe on it and have something like a CMM
[01:03:32] <Tom_itx> it's funny to see the data from a 'precision' reamed or bored hole
[01:03:50] <ReadError> well like i said, these are china holes
[01:03:58] <ReadError> so they arent exactly squared all the way through
[01:04:20] <cradek> my mill with its renishaw can measure a hole diameter better than any tool I have
[01:04:42] <Tom_itx> yeah
[01:04:50] <Tom_itx> we had a probe on a couple of the Okumas
[01:05:17] <Tom_itx> and the quality control room had a couple CMM's
[01:05:25] <ReadError> their site looks expensive ;)
[01:05:27] <Tom_itx> one manual and one auto
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[03:22:51] <leadfooted> I've been looking for a means to make a buzzer beep (i.e. connecting a 5v buzzer to an out pin on a parallel port) when a job is done. Has anybody done anything like that? I've searched for a little bit but haven't come across anything yet
[03:24:21] <cradek> computers used to have beepers built-in. does yours?
[03:25:38] <leadfooted> Possibly. I guess my question is more aimed towards how to trigger a bell/buzzer/etc vs. what it is
[03:25:53] <cradek> oh so you're asking about the software side
[03:26:18] <leadfooted> Right, perhaps somehow tying into the M30? I'm not sure what's the best way to go about doing it either
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[03:27:23] <cradek> http://linuxcnc.org/docs/2.5/html/gcode/m-code.html#_m100_to_m199_user_defined_commands_a_id_sec_m100_to_m199_a
[03:27:43] <cradek> run a script, use any command line program to make the sound you want
[03:28:08] <cradek> "beep" is a simple program that does the obvious thing if you have a working beeper
[03:29:09] <leadfooted> Oh interesting, that would make it easy to connect my civil defense siren
[03:29:38] <cradek> a regular sound card output could be useful too
[03:29:52] <cradek> the hardware is easy, ... well both the hardware and software are easy.
[03:30:50] <leadfooted> Yea, if you know where to look, thanks for pointing that out :)
[03:31:25] <cradek> welcome
[03:31:48] <leadfooted> I was able to setup a probe today so now I'm feeling ambitious and wanted to add an alarm
[03:32:19] <leadfooted> These:
http://timeguy.com/cradek/01262579508
[03:32:32] <leadfooted> So thanks twice!
[03:32:39] <cradek> heh
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[03:42:34] <r00t4rd3d> make a numitron tube display of xyz coordinates.
[03:43:58] <r00t4rd3d> i got some tubes i need to make into a clock some day
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[03:57:34] <r00t4rd3d> cradek, you ever make a tube clock with an arduino?
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[03:58:10] <leadfooted> Someone made a shield to easily do that
[03:58:31] <leadfooted> http://www.arduinix.com/
[03:59:00] <r00t4rd3d> they all make shields
[03:59:12] <leadfooted> yea
[03:59:43] <r00t4rd3d> seems like most people who make a clock or two, shield!
[04:03:15] <r00t4rd3d> ive got all the stuff to make one like this
[04:03:16] <r00t4rd3d> http://www.youtube.com/watch?v=vYPeBmyviFE&feature=plcp
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[04:19:06] <leadfooted> This is terrible. I opened the box that my motherboard for my cnc setup came in and there's a buzzer
[04:19:28] <leadfooted> so I opened up my computer enclosure, checked out the board, and there's no slot for it!
[04:20:00] <leadfooted> And the amp for the buzzer isn't populated haha
[04:20:12] <leadfooted> Why even put it in the box?!
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[04:34:07] <r00t4rd3d> old design
[04:34:27] <r00t4rd3d> solder a buzzer in there
[04:35:12] <r00t4rd3d> or harvest a buzzer from an alarm clock
[04:36:45] <r00t4rd3d> i have some spare buzzers :/
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[04:43:37] <r00t4rd3d> http://imgur.com/a/FKNpI
[04:48:05] <r00t4rd3d> he looks like a cool dude
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[04:54:41] <_ink> he looks like a terminator robot sent from the future
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[05:02:32] <Thetawaves> r00t4rd3d, that happened in my city :O
[05:03:26] <Thetawaves> talking about it on the news right fuck now
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[05:03:56] <r00t4rd3d> seems like he wussed out some
[05:04:06] <Thetawaves> lol
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[05:06:20] <r00t4rd3d> i wonder if he has a split personality?
[05:07:24] <Thetawaves> no
[05:07:40] <Thetawaves> he's just a heroin addict
[05:09:58] <r00t4rd3d> http://www.youtube.com/watch?v=AAS8sMOmeL4
[05:18:13] <r00t4rd3d> I never realized how many hot bitches goto Burning Man till this:
[05:18:14] <r00t4rd3d> http://www.youtube.com/watch?v=Ea3RAkGqYC8&feature=g-all-c
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[06:50:08] <DJ9DJ> ne
[06:50:37] <DJ9DJ> moin
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[13:21:28] <Loetmichel> mornin'
[13:23:19] <Loetmichel> sooo, new smartphone arrived... nice and big, that das galaxy note ;-)
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[13:39:33] <r00t4rd3d> if its not an iphone 5, its garbage
[13:39:52] <psha> if it's not an iphone* it will be banned by court
[13:40:01] <r00t4rd3d> lol
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[13:47:12] <r00t4rd3d> anyone a handsaw junky?
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[13:56:15] <andypugh> I appreciate good ones, but don't own one. (handsaw, that is)
[13:56:42] <andypugh> Assuming you mean woorworking ones.
[13:57:01] DJ9DJ_ is now known as DJ9DJ
[13:57:06] <andypugh> I do have strong opnions about metalworking ones, and only the Eclipse 15B will do.
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[14:08:19] <r00t4rd3d> ive had a old disston crosscut saw forever, i guess its worth a few bucks now
[14:08:29] <r00t4rd3d> -had, have
[14:08:41] <r00t4rd3d> err nvm
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[14:10:28] <r00t4rd3d> http://www.tgiag.com/saw-handle-scans.html
[14:10:44] <r00t4rd3d> im gonna try to cut a fancy handle for it
[14:13:13] <andypugh> It doesn't have a handle then?
[14:13:47] <r00t4rd3d> it does and its in good shape, just not that elegant.
[14:14:20] <r00t4rd3d> i can do better :D
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[14:16:06] <r00t4rd3d> i can convert those pdf's on that site in minutes
[14:16:17] <r00t4rd3d> clicky click
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[15:32:39] <IchGuckLive> Hi all in the wonderfull world ! B)
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[15:55:36] <andypugh> You got the wrong world, try the next one along.
[16:00:06] <IchGuckLive> O.O
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[16:24:56] <jp_> seen awallin_?
[16:26:08] <IchGuckLive> O.Ohe is on holiday in the caribian
[16:26:53] <jp_> K
[16:31:50] <IchGuckLive> Zodiac milling -> Aquarius
http://foengarage.de/aquarius.png
[16:32:13] <IchGuckLive> optimated for 1/8 3mm cutter
[16:32:22] <IchGuckLive> 250x250 mm
[16:33:10] <DJ9DJ> optimized? ;)
[16:33:19] <IchGuckLive> no
[16:33:36] <IchGuckLive> as you see te noncutting line
[16:34:08] <IchGuckLive> Gimp did the Job via Incscape
[16:34:56] <DJ9DJ> nice
[16:35:36] <IchGuckLive> Pocket pocket ptofiling and a mirror pocket
[16:36:51] <IchGuckLive> profiling
[16:36:58] <IchGuckLive> O.O B) :D
[16:37:51] <IchGuckLive> i messured in gimp via incscape and heekscad the pen wide to the expected milling Bitt then gave the Draw a nice repaint
[16:43:19] <Tom_itx> be aware the mirror'd pocket may cut in the reverse direction and may not measure the same because of tool deflection
[16:44:11] <IchGuckLive> you can make alot of back and force via svg and png to get a better shape but its ok this way 2
[16:44:41] <IchGuckLive> Tom_itx: the hotwire is 5mm outwards
[16:44:52] <IchGuckLive> no factor
[16:45:27] <IchGuckLive> millng is 5mm depth at a 40mm part
[16:48:39] <IchGuckLive> ok i leave partytime BBQ is on fire steaks are mounted
[16:48:56] <IchGuckLive> German cool bear !
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[17:01:55] <r00t4rd3d> lol
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[17:10:31] <r00t4rd3d> my Aquarius:
[17:10:32] <r00t4rd3d> http://i.imgur.com/DYTEJ.jpg
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[18:44:00] <mrsun> hmm thats an idea
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[18:44:21] <mrsun> to use optical mouse sensor etc to see if the motors has stalled or not and throw out an error :P
[18:45:07] <mrsun> 1000 dpi resolution in an old one =)
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[18:49:07] <mrsun> dont you think that could be a crude linear encoder? :)
[18:49:56] <pcw_home> crude but maybe a fair in-motion detector
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[18:51:23] <mrsun> 0.0254mm/dot ... tho i know optical mice tend to "slip" sometimes, so a motion detector it could be used for i guess =)
[18:51:42] <mrsun> or why not mount it to a round thingie on the motor, and let it read it as an optical encoder
[18:51:50] <mrsun> shielded from outside contaminents
[18:52:28] <pcw_home> Yeah calculate velocity by d/dt of reported position and see if its within reason
[18:53:13] <mrsun> could be a very cheap way atleast to get something working =)
[18:53:19] <mrsun> optical mice isnt that hard to come by :P
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[18:58:43] <pcw_home> bear in mind they are dreadfully inaccurate so velocity sensing will need large error band
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[19:00:19] <mrsun> its a thought atleast, could save from more crashes into the table from the Z axis for example
[19:00:39] <pcw_home> easy enough to try
[19:00:54] <mrsun> to detect movement at all shouldnt be that hard .. keeping velocity etc out of the picture, most important is to see that it moves :P
[19:01:11] <mrsun> ofc velocity would be nice to see as it would indicate if im skipping steps or not :P
[19:01:31] <pcw_home> well and doesnt see a vibrating stalled stepper as movement
[19:01:33] <skunkworks__> http://electronicsam.com/images/KandT/servostart/Fastermouse.png
[19:02:05] <mrsun> skunkworks__, humm ?
[19:02:58] <skunkworks__> spinning a mouse wheel though the printer port
[19:03:05] <mrsun> oh =)
[19:04:44] <mrsun> but i guess an IR sensor and a slotted disk would be better and more accurate then =)
[19:05:44] <pcw_home> the optical mouse has one advantage in that its seal-able
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[19:08:26] <pcw_home> but a hall effect pickup on the leadscrew or sprocket or handy gear would also work
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[21:18:28] <JT-Shop> wow the high today is 68F
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[21:19:43] <DJ9DJ> gn8
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[21:58:28] <Aero-Tec> got a question
[21:59:22] <jdh> I have an answer.
[21:59:28] <Aero-Tec> a few days ago my mill would just fly, I mean fast as hell, to fast for my liking, but it did it with out any problems
[21:59:58] <Aero-Tec> now, today I had to turn the speeds way down to keep the steppers from freezing
[22:00:28] <jdh> temp? lube?
[22:00:31] <Aero-Tec> why some time it can scream and other days it acts up?
[22:00:52] <Aero-Tec> it is colder now then then
[22:01:11] <jdh> could be it then.
[22:01:41] <Aero-Tec> so how do I set up max speed so I do nor have to worry about it freezing up?
[22:02:08] <Aero-Tec> would hate for it to screw up in mid part run
[22:03:36] <JT-Shop> rapid max speed? Axis gui?
[22:03:42] <Aero-Tec> yes
[22:03:54] <Aero-Tec> I can set it in the INI
[22:04:00] <JT-Shop> yes
[22:04:05] <Aero-Tec> just not sure what to set it to
[22:04:23] <Aero-Tec> and what is the INI number?
[22:04:24] <JT-Shop> what is a good speed for your machine?
[22:04:31] <Aero-Tec> units per second?
[22:04:41] <JT-Shop> yes
[22:05:00] <Aero-Tec> I have 0.75 for x and y
[22:05:16] <JT-Shop> in the axis_n sections?
[22:05:18] <Aero-Tec> but not sure what that means
[22:05:24] <Aero-Tec> yes
[22:05:29] <JT-Shop> mm or inch?
[22:05:33] <Aero-Tec> inch
[22:05:48] <Aero-Tec> can not be inch per min
[22:05:52] <JT-Shop> .75*60=45 IPM
[22:06:02] <Aero-Tec> ok
[22:06:12] <Aero-Tec> so inch per second
[22:06:25] <JT-Shop> yes the ini entry is units per second
[22:06:42] <Aero-Tec> so 45 sound good?
[22:06:57] <Aero-Tec> it is a knee machine
[22:07:04] <Aero-Tec> smaller
[22:07:04] <JT-Shop> depends on lots of factors
[22:07:27] <Aero-Tec> I was afread you where going to say that
[22:07:33] <JT-Shop> my stepper driven plasma cutter can go 550 IPM for example
[22:07:56] <JT-Shop> what voltage is your supply?
[22:08:00] <Aero-Tec> at what steps per inch?
[22:08:14] <Aero-Tec> 75 or 80
[22:08:19] <Aero-Tec> something like that
[22:08:35] <JT-Shop> I don't recall the scale
[22:08:40] <Aero-Tec> close to the upper limit of gecko
[22:09:00] <JT-Shop> have you checked the power connections to be sure none is loose?
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[22:09:35] <Aero-Tec> yes
[22:09:43] <Aero-Tec> it works well
[22:09:53] <Aero-Tec> just the speed thing now
[22:10:13] <JT-Shop> my scale is 3000 on the plasma X and Y axes
[22:10:22] <JT-Shop> gecko 203v drives
[22:10:47] <Aero-Tec> but in unheated garage so it got cold, I am in Canada
[22:11:01] <JT-Shop> cold should run better
[22:11:21] <Aero-Tec> oil stiffens up and has more drag
[22:11:24] <JT-Shop> any chance of mechanical binding?
[22:11:46] <Aero-Tec> it was both axis so I would say no
[22:11:55] <JT-Shop> dude you need a heater in your garage :)
[22:12:33] <Aero-Tec> in fact even the rotary axis acted up as well
[22:12:41] <Aero-Tec> lol
[22:12:48] <JT-Shop> how cold is it up there?
[22:12:57] <Aero-Tec> I do have electric ons I use when it gets cold
[22:13:13] <Aero-Tec> will have to check
[22:13:18] <JT-Shop> iirc they make different grades of way oil
[22:13:28] <Aero-Tec> I would guess somewhere in the 60s
[22:13:45] <Aero-Tec> not 2 cold
[22:13:48] <JT-Shop> that's not cold enough to mess with the oil
[22:13:57] <Aero-Tec> but not warn ether
[22:14:08] <Aero-Tec> will check the temp
[22:15:22] <JT-Shop> if all the axes are acting up it points to something common to all of them
[22:17:19] <Aero-Tec> about 68 F
[22:17:27] <Aero-Tec> cool but not bad
[22:17:43] <JT-Shop> same as here in MO
[22:18:10] <Aero-Tec> is that in the US?
[22:18:18] <JT-Shop> Missouri
[22:18:42] <JT-Shop> yes
[22:19:00] <Aero-Tec> I did mess with the latency settings
[22:19:22] <skunkworks__> are you getting rtai errors while running?
[22:19:28] <skunkworks__> latency errors?
[22:19:29] <Aero-Tec> could that have done it?
[22:19:42] <Aero-Tec> no
[22:19:54] <skunkworks__> how did you mess with them?
[22:19:55] <Aero-Tec> but I had not realy run it with old settings
[22:19:57] <JT-Shop> latency settings in stepconf wizard?
[22:20:10] <Aero-Tec> yes and know
[22:20:18] <JT-Shop> hi skunkworks__
[22:20:41] <skunkworks__> Hi john
[22:20:52] <Aero-Tec> set up a fakE setup AND MOVED THE SETTING Manually
[22:21:09] <Aero-Tec> sorry for the caps
[22:21:15] <Aero-Tec> finger slip
[22:21:16] <skunkworks__> tearing out an old jucuzzi tub.. yeck
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[22:21:57] <Aero-Tec> you got a new one to play with or should I say in?
[22:22:29] <JT-Shop> how long did you run the latency test? and did you run things like glxgears?
[22:22:40] <Aero-Tec> so I did use the wiz to get the number to use
[22:22:53] <Aero-Tec> a few hours
[22:23:05] <Aero-Tec> yes to glxgears
[22:23:10] <Aero-Tec> and other things
[22:23:27] <Aero-Tec> hit the new and other network computers
[22:23:29] <skunkworks__> I would think you would be gettting errors running linuxcnc if it where a latency issue.
[22:23:30] <Aero-Tec> moved some files
[22:24:02] <Aero-Tec> I am guessing it must have something to do with the temp
[22:24:24] <Aero-Tec> it is colder now then when i DID THE TESTING BEFORE
[22:24:35] <Aero-Tec> dam cap lock
[22:24:42] <skunkworks__> heh
[22:24:59] <Aero-Tec> it was scary fast before
[22:25:27] <Aero-Tec> now I have to run it much slower
[22:25:45] <Aero-Tec> still going good, just not as fast
[22:26:17] <Aero-Tec> just wondering what the best way to find max speed is
[22:26:32] <Aero-Tec> poor english
[22:26:55] <Aero-Tec> should proof read I guess
[22:27:18] <Aero-Tec> it was toasty when it ran fast
[22:27:37] <Aero-Tec> and the garage is colder then outside
[22:28:00] <Aero-Tec> so the machine may be still at last night temp
[22:28:19] <Aero-Tec> could do a temp read on machine directly
[22:29:16] <JT-Shop> have you seen the stepper test routine in the manual?
[22:29:30] <Aero-Tec> no
[22:29:47] <JT-Shop> http://linuxcnc.org/docs/html/common/Stepper_Diagnostics.html
[22:30:04] <Aero-Tec> I did see the one where it goes back and forth a whack of times
[22:30:11] <Aero-Tec> is that the one you mean?
[22:30:15] <JT-Shop> that's it
[22:31:45] <JT-Shop> can you monitor the voltage of your power supply with a meter while you run all the axes at once?
[22:32:46] <Aero-Tec> one other thing I did do
[22:32:53] <Aero-Tec> setup backlash
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[22:34:05] <Aero-Tec> as I set the step gen max A to double like they said
[22:34:42] <Aero-Tec> that could have made the following error
[22:35:52] <Aero-Tec> not sure if the motor growl was from the sudden loss of step input when running at speed or if the motor just could not keep up
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[22:36:25] <Aero-Tec> I guess I could play with the settings again and see what happens
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[22:37:24] <JT-Shop> yikes backlash!
[22:38:13] <JT-Shop> did you read about the stepgen max accel setting with backlash
[22:38:45] <Aero-Tec> yes
[22:38:55] <Aero-Tec> that is why I changed the settings
[22:39:29] <Aero-Tec> could that be making my following error?
[22:39:48] <Aero-Tec> it is a following error that EMC complains about
[22:39:51] <Nick001-Shop> how do I get information out of G54 in the tool table. it seems to keep rewriting to the VAR table when I shut the program off
[22:40:19] <Aero-Tec> the motor noise could just be EMC sudden shut down
[22:41:20] <Aero-Tec> seeing as there is no feed back
[22:41:39] <JT-Shop> http://linuxcnc.org/docs/html/common/Stepper_Diagnostics.html#_following_error
[22:42:40] <Aero-Tec> I would guess now that the motor noise is not the motor freezing like I thought but from EMCs sudden shut down and the motors going a few steps
[22:43:13] <JT-Shop> or stepper motor stalling
[22:43:57] <JT-Shop> Nick001: can you rephrase your question?
[22:45:02] <Aero-Tec> I did double the step max A
[22:45:23] <Aero-Tec> that could have set the stage for the following error
[22:46:07] <Aero-Tec> should I set the step max A to half as much and not double?
[22:46:17] <JT-Shop> if you did that in the stepconf wizard it will adjust your base thread speed
[22:46:26] <Nick001-Shop> I touched off a tool and loaded it into g54 rather than tool table on the bottom of the drop down. Now it gives a weird dimension on the screen like 405 on the X axis to the part.
[22:47:07] <JT-Shop> clear the g54
[22:47:07] <Nick001-Shop> now the program wont run because too much travel for X
[22:47:23] <Nick001-Shop> how?
[22:47:29] <JT-Shop> Axis?
[22:47:36] <Nick001-Shop> yes
[22:47:43] <JT-Shop> bottom of the Machine menu
[22:48:16] <Nick001-Shop> ill go look brb
[22:48:20] <Aero-Tec> anyway to set the max speed lower than 1800 in axis?
[22:48:54] <Aero-Tec> get a better scaled slider that way
[22:48:54] <Tom_itx> set it in the [DISPLAY] section of your ini
[22:49:05] <Aero-Tec> cool
[22:49:07] <Aero-Tec> thanks
[22:49:57] <Aero-Tec> I was just wanting to make sure I was setting things up right so I would not get error in mid part
[22:50:32] <Aero-Tec> will just have to set up and cut air a few times for each part and make sure it run good
[22:50:43] <Tom_itx> MAX_FEED_OVERRIDE and MAX_LINEAR_VELOCITY
[22:51:06] <Aero-Tec> thanks
[22:51:10] <Tom_itx> 1 being 100%
[22:51:12] <Tom_itx> i think
[22:51:26] <JT-Shop> cutting air is always a good thing at first
[22:51:37] <Tom_itx> it's cheap to replace
[22:51:42] <Aero-Tec> lol
[22:51:54] <Aero-Tec> and not as scary
[22:52:11] <Aero-Tec> some time I hate hitting the go button
[22:52:44] <andypugh> Not the best day today. I went out on my pushbike to get some stuff, and had a puncture. Then found I couldn't fix the puncture as I had lost my keys en-route, and couldn't go look for them (in a sensible timescale) because I had a puncture. A friend holds a spare front door key, and I managed to break back into my workshop and fix the puncture. But it's a real hassle.
[22:52:45] <Nick001-Shop> zero coordinate system? P1-9 and G92 listed - no tool table
[22:52:56] <Aero-Tec> mack would sometimes just take off at max speed right through the parts, vice, jig, what ever got in the way
[22:53:08] <Aero-Tec> mach
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[22:53:40] <JT-Shop> yikes
[22:53:47] <Aero-Tec> be in mid part run, M0 stop, hit go and it would go nuts
[22:54:35] <andypugh> Aero-Tec: Scariest mouse click so far for me involved a 100kg flywheel doing 3000rpm, a pnuematic clutch and a cam that was about to send a platten from 0 to 60 in 1/2"
[22:54:51] <Aero-Tec> and I had made a whack of parts in that run and changed nothing
[22:56:18] <Aero-Tec> that would be scary
[22:57:32] <Aero-Tec> lots of weight going fast. not good if things go wrong
[22:57:49] <andypugh> It did tend to destry the cam follower. And on the first run it left the linear bearings behind. :-)
[22:58:04] <Aero-Tec> lol
[22:58:18] <Aero-Tec> any damage?
[22:58:31] <Aero-Tec> other then cam follower
[22:58:40] <andypugh> It needed a new carriage. I should have taken photos.
[22:59:10] <Aero-Tec> sounds bad, very bad
[22:59:32] <Aero-Tec> you make the carriage or did you have to buy a new one?
[22:59:38] <andypugh> There were two 50mm bars 300mm apart.
[23:00:26] <Aero-Tec> some pix of the machine now or when it was done would be cool
[23:00:46] <Aero-Tec> get a better idea of that it is
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[23:01:32] <Aero-Tec> of what it is
[23:01:36] <Aero-Tec> lol
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[23:02:01] <andypugh> Aero-Tec: 3D model I made at the time. it was probably 15 years ago.
http://www.bodgesoc.org/plast.gif
[23:03:33] <Aero-Tec> are you sure the flywheel was going at 3000 RPM?
[23:03:56] <Aero-Tec> looks like it was on the wrong side of gear box to be going that fast
[23:04:27] <andypugh> The Mk1 sliding carriage (wire-eroded aluminium) left the outer bearing housings behind by 10mm on the first full-speed run
[23:04:56] <Aero-Tec> and what a snap to the cam to suddenly go from zero to 3000 rpm
[23:05:10] <andypugh> The gearbox was a lathe headstock sold to me cheap by Dean Smith and Grace
[23:05:54] <Aero-Tec> so you were not using any gears, just the spindle part of the head stock
[23:05:59] <Aero-Tec> right?
[23:06:27] <Aero-Tec> still why so fast?
[23:06:39] <Aero-Tec> why not gear it down some
[23:06:47] <andypugh> I needed lower speeds too. And at the time VFDs were expensive (and I probably hadb
[23:06:47] <andypugh>
[23:06:56] <andypugh> hadn't heard of them
[23:06:58] <Aero-Tec> 500 would be better I would tink
[23:07:23] <Aero-Tec> ok
[23:07:35] <andypugh> The point was to do compression tests of materials really very fast
[23:08:09] <Aero-Tec> so that cam would travel several revs per hit I would think
[23:08:31] <andypugh> I was simulating car crashes, and many of the materials, like foam, rubber, fat, muscle, have strongly strain-rate dependent properties.
[23:09:01] <Aero-Tec> sounds messy
[23:09:08] <andypugh> Yes, you get one good hit, and a lot of spinning afterwards to discard.
[23:09:16] <Aero-Tec> big splat factor
[23:09:48] <andypugh> I didn't test the biomaterials. I just tested crash-test dummy parts.
[23:10:10] <Aero-Tec> cool
[23:10:36] <Aero-Tec> back to setting up my mill
[23:11:40] <andypugh> DSG make proper big lathes:
http://www.deansmithandgrace.co.uk/index.php?section=page&page_seq=56
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[23:12:09] <andypugh> I wonder if they want to offer LinuxCNC as a controller?
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[23:13:12] <andypugh> Up to 21" spinle bore.
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[23:17:37] <Aero-Tec> wow
[23:17:43] <Aero-Tec> cool
[23:17:48] <Aero-Tec> nice
[23:18:01] <Aero-Tec> must be very expensive
[23:18:14] <andypugh> I expect so.
[23:19:01] <andypugh> Also rather speialist, as the spindle speed is limited by what bearings with a 21" hole are capable of.
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[23:23:58] <Tom_itx> so andy, did you find your keys?
[23:28:27] <andypugh> No
[23:30:25] <Tom_itx> :(
[23:30:53] <JT-Shop> anyone know what I have to do to get the ELO touchscreen setup in 10.04?
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[23:33:24] <andypugh> Does it not work at all?
[23:34:38] <andypugh> Tom_itx: Tomorrow I will measure my cylinders and order a keyed-alike set. I have been intending to do that for a few years anyway.
[23:36:00] <JT-Shop> yes, I think I need to calibrate it somehow now I can touch the screen and the mouse pointer jumps somewhere else
[23:36:12] <JT-Shop> been reading this
https://help.ubuntu.com/community/EloTouchScreen
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[23:38:16] <andypugh> JT-Shop: Try calibrating. Mine had X and Y wrong, and mirrored. The calibration routine sorted it out.
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[23:54:48] <JT-Shop> is the calibration routine part of evtouch?
