#linuxcnc | Logs for 2012-10-20

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[00:08:53] <andypugh> jdh: Yes, the Arduino reads Resolvers.
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[00:16:57] <andypugh> Imagine my pleasure to find at 1130pm that a hole in my security bracket things needed to be oval, and not only was the milling machine partially dismantled, it also was runniing a non-functional version of LinuxCNC. So I needed to reassemble, do some coding, recompile LinuxCNC to put the door back in a state where it could be locked.
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[00:18:01] <skunkworks> andypugh: how far can you do 1mps?
[00:18:11] <skunkworks> Mbps
[00:18:20] <andypugh> I have absolutely no idea :-)
[00:18:23] <mutilator> hm
[00:18:24] <skunkworks> heh
[00:18:35] <mutilator> will the 540 turn green w/ no axis plugged in just the db25?
[00:18:47] <andypugh> I did it a couple of feet with just two random wires when testing.
[00:19:09] <andypugh> mutilator: You might need a working charge-pump
[00:19:55] <mutilator> ?
[00:20:17] <mutilator> its always fault when i have charge pump switched to on
[00:21:00] <andypugh> OK, so you have disabled the charge pump. Never mind.
[00:22:18] <jdh> 6 pins on a servo would most likely be a resolver, not encoder? (not the motor wires)
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[00:23:00] <andypugh> jdh: Yes, probably.
[00:23:47] <jdh> does your arduino resolver interface have a speed limit?
[00:24:08] <andypugh> 5 would be encoder + power. 7 would be differential encoder + power or encoder + halls. 14 would be differential encoder and differential halls.
[00:24:22] <andypugh> jdh: Yes, and not a very high one.
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[00:35:09] <mutilator> i fixed it
[00:35:13] <mutilator> i had my charge pump on the wrong pin
[00:35:28] <jdh> does it work now?
[00:36:04] <jdh> there was a long thread somewhere about G540 not working correctly with LinuxCNC charge pump output (but working with Mach on same Hardward)
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[00:41:25] <mutilator> yep it works
[00:41:41] <mutilator> trying to tweak all these settings
[00:42:54] <mutilator> what is table travel measured in?
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[00:45:36] <jdh> inches or mm, depending on your setup.
[00:48:38] <mutilator> hm
[00:48:50] <mutilator> maybe i typed something wrong then
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[00:54:56] <jdh> are you homed?
[00:55:13] <mutilator> i reset the home yea
[00:55:36] <mutilator> linuxcnc thinks its travelling all the way across the tabel
[00:55:38] <mutilator> table
[00:55:43] <jdh> scale is wrong
[00:55:46] <mutilator> but in reality its moving like an inch
[00:55:49] * mutilator looks
[00:56:00] <skunkworks> it is in steps/unit
[00:57:34] <mutilator> hm in where?
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[00:58:25] <jdh> step_scale, in each [axis] in the .ini
[01:00:11] <L84Supper> did I miss some big EMC vs Mach3 drama a few years ago? I keep running into people that generally use Linux but prefer to use Mach3 when it comes to machines
[01:00:24] <jdh> that would be odd.
[01:00:36] <mutilator> so
[01:00:39] <mutilator> what should it be?
[01:00:39] <L84Supper> it sort of like the old story about nvidia drivers being better than ATI
[01:01:03] <jdh> mutilator: steps per rev * microstepping * pitch * starts
[01:01:21] <jdh> what kind of screws are you using?
[01:01:41] <jdh> or easier, is it off by 10?
[01:06:26] <Tom_itx> yeah i bet it's microstepping
[01:06:35] <Tom_itx> mult the step factor by 10
[01:06:37] <jdh> g540 does 10x
[01:06:45] <Tom_itx> so do mine
[01:24:31] <mutilator> well
[01:24:41] <mutilator> 200 managed to make it move half the distance every direction
[01:24:49] <andypugh> L84Supper: News to me, but I wasn't playing then
[01:24:51] <mutilator> across the table*
[01:25:46] <andypugh> Just tweak the scale till it works. Only worry if the numbers seem properly random.
[01:26:24] <mutilator> i keep getting join # error
[01:26:52] <jdh> scale is 200?
[01:27:27] <mutilator> well trying numbers above 200
[01:27:29] <mutilator> 200 seems to work fine
[01:27:39] <mutilator> but it only travels half way in every direction
[01:27:59] <jdh> steppers? G540?
[01:28:18] <mutilator> http://www.automationtechnologiesinc.com/docs/manuals/KL23H2100-35-4B.pdf
[01:28:19] <mutilator> this stepper
[01:28:22] <mutilator> w/ g540
[01:28:27] <jdh> 200 would only be 1/10 of a rev
[01:28:46] <Tom_itx> mine is 40000
[01:28:50] <Tom_itx> per inch
[01:29:48] <Tom_itx> mutilator, what pitch is your lead screw?
[01:30:24] <mutilator> hm
[01:30:32] <mutilator> 5.08mm/rev
[01:30:47] <mutilator> for the x/y and 2.1167 for z
[01:33:10] <mutilator> ah
[01:33:11] <mutilator> man
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[01:38:11] <mutilator> there is something i'm missing somewhere..
[01:38:13] <mutilator> ugh
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[01:40:18] <Tom_itx> your units are mm?
[01:40:21] <mutilator> yea
[01:40:27] <mutilator> yea the gui is telling me the axis scale should be 78.7
[01:40:38] <mutilator> so i have something wrong somewhere
[01:40:40] <Tom_itx> so how many rev per mm?
[01:40:43] <jdh> you are entering 200 steps per rev, and 10x microstepping?
[01:40:46] <Tom_itx> .508?
[01:40:56] <mutilator> 5.08mm/rev
[01:41:06] <mutilator> 200 steps per rev
[01:41:10] <Tom_itx> no, you want the inverse
[01:41:16] <Tom_itx> how many rev per mm
[01:41:20] <Tom_itx> .508?
[01:41:21] <mutilator> oh
[01:41:45] <Tom_itx> .508 * 200 * 10
[01:41:57] <mutilator> i was going based on the docs
[01:42:03] <mutilator> Leadscrew Pitch - Enter the pitch of the leadscrew here. If you chose Inch units, enter the number of threads per inch If you chose mm units, enter the number of millimeters per revolution (e.g., enter 2 for 2mm/rev). If the machine travels in the wrong direction, enter a negative number here instead of a positive number, or invert the direction pin for the axis.
[01:42:12] <Tom_itx> see what that does
[01:42:19] <mutilator> put in .508?
[01:42:20] <Tom_itx> i use inch so it's not the same for me
[01:42:31] <Tom_itx> you didn't answer the question
[01:42:38] <Tom_itx> how many rev per mm?
[01:43:04] <mutilator> 1/5.08
[01:44:06] <Tom_itx> 393.7007874015
[01:44:08] <Tom_itx> try that
[01:44:13] <Tom_itx> for your scale
[01:44:50] <Tom_itx> (1/5.08)*200 * 10
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[01:45:06] <Tom_itx> that may be wrong but it's a start
[01:46:19] <mutilator> yea thats pretty dang close
[01:46:23] <mutilator> i can live with that
[01:46:32] <andypugh> Math fail here
[01:46:37] <Tom_itx> do the same with z
[01:46:48] <andypugh> The inverse of 5.08 is _not_ .508
[01:46:53] <mutilator> heh
[01:46:55] <Tom_itx> nope
[01:47:01] <mutilator> so why does the gui do a weird calc?
[01:47:09] <Tom_itx> i'm multitasking here
[01:47:14] <Tom_itx> ignore it
[01:47:17] <andypugh> The Gui is trying to help :-)
[01:47:24] <Tom_itx> ignore it
[01:47:35] <Tom_itx> you go from your UNITS
[01:47:41] <Tom_itx> and figure back from that
[01:47:57] <Tom_itx> mine are inch so my scale is 40000
[01:48:11] <Tom_itx> on my 20tpi screw at 200 steps with 10 microstep
[01:48:36] <andypugh> Yes, exactly. What really matters is how many step pulses from your computer you need to move your inch, foot, mm, rod pole or perch.
[01:48:58] <mutilator> heh
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[01:49:11] <mutilator> well the z axis that way didnt work
[01:49:23] <mutilator> when i set the scale to 933 or whatever it was
[01:49:28] <mutilator> i get a join 2 error
[01:49:32] <mutilator> when i try to jog it
[01:49:36] <mutilator> joint 2*
[01:49:46] <Tom_itx> your limits aren't configured
[01:50:01] <mutilator> yea, they are
[01:50:17] <Tom_itx> is it turning the right direction?
[01:50:25] <Tom_itx> you may need a - negative on the scale
[01:50:30] <Tom_itx> to reverse it
[01:50:54] <mutilator> yep, i figured that out earlier
[01:51:03] <mutilator> it goes the correct direction
[01:51:09] <mutilator> when i home it sets the z to -39
[01:51:16] <mutilator> when i jog its going to the positive
[01:51:21] <mutilator> but stops at ~33
[01:51:28] <mutilator> er
[01:51:30] <mutilator> -33
[01:51:30] <andypugh> -39 is a strange home
[01:51:33] <mutilator> when the limit is set to 68
[01:51:43] <mutilator> andypugh: i dont know why it puts it negative
[01:51:48] <mutilator> i have it set to 0 in the config
[01:51:55] <mutilator> all the axis are like that
[01:51:57] <andypugh> It's a value from the INI file.
[01:51:59] <mutilator> that offset by a random number
[01:52:09] <mutilator> ini doesnt have any negatives
[01:52:19] <andypugh> press #
[01:52:29] <Tom_itx> SCALE = -40000
[01:52:29] <Tom_itx> MIN_LIMIT = -8.4
[01:52:29] <Tom_itx> MAX_LIMIT = .10
[01:52:34] <mutilator> ha
[01:52:36] <mutilator> whts # do?
[01:52:38] <Tom_itx> is mine
[01:52:51] <andypugh> Switches to machine coordinates
[01:52:59] <mutilator> ah well then
[01:53:04] <mutilator> it switched to mm when i did that
[01:53:13] <mutilator> so.. yea z goes from 0 to 9
[01:53:14] <andypugh> (i think, it's been a while since I ran a whole machine)
[01:53:17] <mutilator> then i get that error
[01:53:54] <mutilator> i wonder..
[01:54:01] <mutilator> could the acceleration have something to do with it?
[01:54:11] <mutilator> if i jog in slow increments it goes fine
[01:54:15] <mutilator> but if i hold it down it does that
[01:54:15] <andypugh> mutilator: Do you want mm or inches? It doesn't really matter because G-code can switch.
[01:54:25] <mutilator> i'm using mm
[01:54:43] <andypugh> Good choice, rational units :-)
[01:54:47] <Tom_itx> pfft
[01:55:06] <andypugh> Is this a trivkins machine, or a gantrykins?
[01:57:49] <mutilator> no?
[01:58:16] <mutilator> yea i cvant get it to get rid of the "joint 2 following error" when i hold down the jog
[01:58:27] <mutilator> but i can do it in increments and it will stop at its maxes
[02:00:36] <andypugh> You need the stepgen accel to be higher than the axis accel in the INI.
[02:00:45] <Tom_itx> is the switch bouncing?
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[02:01:26] <andypugh> It might also be that your max speed is higher than what your base thread can pulse at.
[02:01:55] <andypugh> What is your base thread rate, what is your scale, and what is your max velocity?
[02:02:20] <andypugh> And I just remembered I didn't turn my Argon off.. Back in a tick.
[02:08:17] <jp11> andypugh: how could i send commands out my mesa 485 ports?
[02:08:27] <mutilator> 2.1167mm/rev is the z
[02:08:40] <mutilator> i had the scale set to 944.86
[02:08:50] <mutilator> and step accel to 300
[02:10:43] <Tom_itx> 944.86700996834695516606037700194
[02:10:49] <andypugh> 2.1167mm rev = 0.472433 rev/mm = 94.48 motor steps/mm = 944.867
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[02:11:54] <andypugh> The think is that that stepgen accel needs to be higher than the axis accel. Or the stepgen lags and you get f-errors
[02:12:07] <mutilator> i tried setting to 1000, 1200, 1400
[02:12:13] <mutilator> same thing no matter the accel
[02:12:19] <andypugh> jp11: Can you elaborate on the question?
[02:12:33] <Tom_itx> MAX_ACCELERATION = 51
[02:12:33] <Tom_itx> STEPGEN_MAXACCEL = 77
[02:12:36] <Tom_itx> is mine
[02:13:01] <mutilator> hm
[02:13:04] <mutilator> i didnt change max accel
[02:13:07] <mutilator> just stepgen accel
[02:13:11] <andypugh> mutilator: I suspect that it might be a velocity issue though.
[02:13:26] <jp11> how could i send a serial command out a 7i44 and read the response back
[02:13:47] <andypugh> What is your max velocity, and what is your base thread period?
[02:14:03] <mutilator> velocity is 200 base period is 23000
[02:14:34] <andypugh> 200mm/sec and 23uS?
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[02:15:33] <andypugh> OK, 200mm/sec x 944 = 188kHz. 23uS = 43kHz
[02:16:32] <mutilator> ..
[02:16:37] <jdh> 200mm/sec is pretty speedy
[02:16:38] <andypugh> So, there is no way that software stepgen can drive your axis at 200mm/sec
[02:17:25] <mutilator> so it needs to be slower?
[02:17:46] <andypugh> You would need to go to 1/4 microstep, and that isn't an option on the G540
[02:18:32] <jdh> what kind of machine is this?
[02:18:59] <andypugh> Yes, either you need to go to 45mm/sec max speed, change the gearing or buy a hardware stepping card.
[02:19:19] <mutilator> k 40 moved more
[02:19:23] <mutilator> but still died off
[02:19:25] <mutilator> trying slower
[02:19:27] <andypugh> TBH I think you will probably find that a slow Z isn't desperately bad.
[02:19:53] <mutilator> yea its not a lot of movement regardless
[02:19:59] <mutilator> that works
[02:20:01] <mutilator> set it to 30
[02:20:04] <jdh> that's almost 500 IPM
[02:20:06] <mutilator> and its smooth as butter
[02:20:45] <andypugh> You hit the limit on how fast it is possible for software to make pulses.
[02:20:50] <mutilator> my x/y are set to move ~524mm/sec
[02:21:19] <andypugh> Yes,m but what are their steps/mm scales?
[02:21:37] <mutilator> yea
[02:21:42] <mutilator> 2x as much
[02:21:45] <mutilator> 2.5x
[02:21:52] <mutilator> alrite
[02:21:57] <mutilator> much gratitude andypugh
[02:22:00] <mutilator> appreciate the help
[02:22:19] <andypugh> You are sounding like a candidate for hardware step generation.
[02:22:39] <jdh> I'd like to see 524mm/sec
[02:22:53] <andypugh> Are you running out of IO? Would you like to run the spindle from an analogue voltage?
[02:23:59] * Tom_itx waits for the sales pitch
[02:24:30] <andypugh> I am about to sound like a Mesa salesman, but for $200 the 5i25/7i76 combo will give you far more step speed and IO than you could want.
[02:24:46] <jp11> second that
[02:25:15] <Tom_itx> 3rd that
[02:25:39] <andypugh> it isn't a sales pitch, all I get from Mesa is negative spare time. :-)
[02:25:51] <Tom_itx> if i hadn't gotten the parport ones and the 5i25 were available i'd have one
[02:25:51] <jp11> lol
[02:26:17] <jp11> i want the new enet one
[02:26:24] <andypugh> ie, Pete gives me hardware I have no personal use for, so I write frivers I don't need.
[02:26:26] <r00t4rd3d> the motor on my 12" disk sander was working fine this morning, now I plug it in and all it does is buzz.....
[02:27:14] <andypugh> r00t4rd3d: Brush motor?
[02:27:18] <r00t4rd3d> i turn the pulley by hand and I can hear shit like wire scratching around
[02:27:45] <r00t4rd3d> andy, not sure :?
[02:27:55] <andypugh> Hand-held or not?
[02:28:05] <r00t4rd3d> no
[02:28:08] <r00t4rd3d> table
[02:28:17] <andypugh> SIngle phase?
[02:28:58] <r00t4rd3d> Umm, yeah I plug it into a regular outlet
[02:29:24] <r00t4rd3d> http://i.oodleimg.com/item/2939529239u_1x424x360f?1331764605
[02:29:26] <r00t4rd3d> kinda like that
[02:29:50] <jp11> bad cap or bum run switch?
[02:29:56] <andypugh> I would guess that the centrifugal switch isn't living up to its name
[02:30:27] <r00t4rd3d> it hadnt been turned on in years i guess
[02:30:36] <andypugh> If you are feeling brave, try switching it on and giving it a hand start.
[02:30:43] <r00t4rd3d> i did already :D
[02:31:02] <r00t4rd3d> i can feel the cord buzzing too when i plug it in
[02:31:13] <andypugh> And it didn't start?
[02:31:17] <r00t4rd3d> nope
[02:31:41] <r00t4rd3d> im gonna have to replace it for now I guess
[02:31:47] <r00t4rd3d> i have another one
[02:31:51] <andypugh> The motor may have lost a winding then
[02:32:04] <r00t4rd3d> sounds like wires tumbling around in there
[02:32:18] <r00t4rd3d> fine wires
[02:32:58] <r00t4rd3d> probably is a winding
[02:33:26] <andypugh> I am sure that rewinding a motor would be a therapeutic and satisfying task. You might even end up with a working motor at the end, but I wouldn't like to guarantee it
[02:33:56] <r00t4rd3d> i have magnet wire already....
[02:34:06] <r00t4rd3d> probably not that right gauge though
[02:34:22] <r00t4rd3d> i have a roll of 18 sitting here
[02:34:37] <andypugh> hotrod sander!
[02:34:43] <r00t4rd3d> it is!
[02:34:50] <r00t4rd3d> scares me to use it almost.
[02:35:27] <r00t4rd3d> im not sure of the rpms but it flies
[02:35:36] <andypugh> Rewind for 6-phase, that has to be twice as good.
[02:36:24] <r00t4rd3d> i should take a pic of it
[02:37:43] <r00t4rd3d> it might be bigger then 12"
[02:38:38] <andypugh> So, today I have been making more of these: https://picasaweb.google.com/lh/photo/3A7q9zo5XhrqVakkxGldzNMTjNZETYmyPJy0liipFm0?feat=directlink
[02:38:47] <jp11> andypugh: is raw read/ raw write a hostmot2 thing
[02:39:34] <r00t4rd3d> I been making these today : http://i.imgur.com/lQyfp.jpg
[02:39:41] <r00t4rd3d> lol
[02:39:51] <andypugh> But mounted a bit differently. Is it overkill that I drilled a hole and glued in a 3mm tunsten carbide rod (broken milling cutter) to defeat hacksaws?
[02:40:33] <andypugh> r00t4rd3d: That's very 1930s
[02:40:45] <andypugh> jp11: Yes
[02:40:58] <jp11> nice touch with the carbide
[02:42:14] <andypugh> jp11: What Hostmot2 function is linked to your 7i44 pins?
[02:42:48] <jp11> nothing yet i havent plugged it in yet
[02:43:03] <jp11> just tryi g to form a plan
[02:43:34] <andypugh> svua firmware might "just work"
[02:43:53] <jp11> just want to try to send a read command to the encoder
[02:44:00] <jp11> svua?
[02:44:08] <andypugh> You would need a custom comp to translate the return stuff.
[02:44:26] <jp11> yeah i figured that
[02:44:30] <andypugh> svua == servo uart
[02:44:42] <jp11> ah
[02:44:47] <andypugh> Have you looked at the sample UART comp?
[02:45:07] <jp11> at the code?
[02:45:13] <jp11> yes
[02:45:13] <andypugh> Yeah
[02:46:37] <andypugh> Hmm, no sign of an SVUA in the standard firmwares
[02:46:47] <andypugh> What PCI card are you using?
[02:46:57] <jp11> ill plug in the 7i44 tonight and play around with it
[02:47:05] <jp11> 5i23
[02:47:51] <andypugh> jp11: Does it make sense? It's not like any other Hostmot2 driver, you need to grab a handle to the particular port by name, then do "stuff" with it.
[02:49:32] <andypugh> Hmm, no UART firmwares in the Mesa downlod either.
[02:50:43] <andypugh> I have one that I use (for 5i23) but it's a horrid kludge as Smart Serial and UART disagree on register spacing.
[02:51:28] <jp11> wonder what pcw has in his bag of tricks
[02:51:54] <andypugh> I can probably build you a firmware as long as you don't want to mix UART and sserial.
[02:52:30] <andypugh> Or PCW can make you one with a better chance of working.
[02:53:00] <andypugh> You could consider building your own. It's not terribly hard
[02:53:15] <jp11> in the 5i23? i dont need ss for now the 5i23 is just on my test box
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[02:54:08] <jp11> how would i get started on playing with firmware
[02:54:59] <r00t4rd3d> offer it candy and barbie dolls
[02:55:27] <jp11> not so funny
[02:55:45] <andypugh> I am trying to find it.
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[02:58:41] <jp11> im wondering if a hacked up version of the modbus comp could work
[03:00:27] <andypugh> The UART como is likely to be better, as it does get data. All that is left is interpreting that data
[03:00:33] <andypugh> (comp)
[03:02:20] <andypugh> jp11: http://tom-itx.dyndns.org:81/~webpage/emc/xilinx/xilinx_install_index.php
[03:03:29] <Tom_itx> i forgot
[03:03:32] <Tom_itx> :)
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[03:05:15] <andypugh> I am not sure who's clues I followed. It wasn't yours, but yours came up early in Google and looked clear
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[03:07:40] <andypugh> 4am. Time to sleep.
[03:07:44] <andypugh> Night all
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[03:30:00] <r00t4rd3d> http://www.cutitoutcnc.com/images/Crab%20Carving.jpg
[03:30:17] <r00t4rd3d> that is cool
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[05:29:53] <mazafaka> r00t4rd3d: for what do you need such items of art made of wood?
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[06:58:26] <DJ9DJ> moin
[06:59:49] <mazafaka> moin.
[07:03:39] <mazafaka> Is it true users sometimes reinstall Windows systems one or two times a year? These freeware programs are like trash in Windows installations...
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[07:04:39] <DJ9DJ> is he going to reinstall his windows now? ;)
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[09:55:50] <mrsun> would someone kick wsjr|2 in the balls so he wakes up ? :P
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[10:56:43] <jthornton> logger[psha], log
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[11:29:56] <Loetmichel> mornin'
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[11:34:25] <jthornton> morning
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[12:07:21] <archivist> 1pm past lunch time!
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[12:24:12] <jthornton> anyone feel like playing with this http://gnipsel.com/shop/sfc/sfc.xhtml
[12:24:16] <jthornton> be back in a bit
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[12:34:41] <archivist> andypugh, made the garage chav proof?
[12:35:01] <andypugh> I reckon so.
[12:36:39] <andypugh> I wasn't especially pleased to find that, after setting the resin anchors, I needed to oval a hole in a plate. Which meant I had to put the mill control cabinet back together, and edit the code and remake… That meant that I cooked my dinner at 1am.
[12:37:24] <archivist> I did see your sign off at 4 am :)
[12:39:29] <archivist> I bodged a tool cutter grinder from a comparator stand and ball slides and a few clamps after looking at what others have done at the show, made/sharpened a cutter today
[12:42:00] <andypugh> any pictures?
[12:43:01] <archivist> not yet
[12:44:30] <archivist> spindle is an ER16 parallel shaft , will take a few pics in a few minutes
[12:45:49] <andypugh> From eBay? I used a similar (ER32) thing for my rotary. Very convenient.
[12:46:55] <archivist> yup, cheap and cheerful and seems good enough for "average" work
[12:49:30] <archivist> oops, left camera switched on, waiting for a quick charge
[12:50:58] <archivist> a "got at" quorn I spotted http://www.collection.archivist.info/archive/DJCPD/PD/2012/2012_10_18_Model_Engineer_Radford/IMG_1372.JPG
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[12:58:40] <andypugh> Needs more clamp handles.
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[13:12:16] <awallin> archivist: is that machine good for making gears (e.g. worm-gears) also, or just for making/sharpening endmills?
[13:13:34] <archivist> the quorn is just a general purpose tool and cutter grinder
[13:14:17] <archivist> a real bodge :) http://www.collection.archivist.info/archive/DJCPD/PD/2012/2012_10_20_Tool_grinder/
[13:15:11] <archivist> the psu ammeter a seems good judge of cut
[13:17:30] <archivist> hmm pics show the mistakes in grinding but it is my first attempt (my excuse)
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[13:20:02] <andypugh> It might be argued that the Quorn looked more professional.
[13:20:20] <awallin> lot's of clamps in those pics :)
[13:21:21] <andypugh> I wonder if it would have been better to have V-blocks under the work spindle bearings?
[13:22:36] <archivist> possibly, but one of my v blocks is holding my security camera looking at the back door
[13:23:22] <andypugh> Which reminds me, I have a bit left to do on my garage door.
[13:23:25] <andypugh> rrfn
[13:23:30] <andypugh> ttfn even
[13:23:35] <archivist> I was going to mill some parts for it but had a VFD on the horizontal let the smoke out yesterday
[13:24:18] <andypugh> There is a lot to be said for working with an easily adjustable prototype.
[13:27:23] <archivist> and re use of "assemblies"
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[13:47:21] <Tom_itx> those are huge
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[13:50:00] <Tom_itx> would someone boot wsjr until he can fix his connection?
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[14:33:32] <JT-Shop> Tom_itx: want to test something?
[14:33:52] <Tom_itx> i saw it but don't have my linux booted
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[14:34:25] <JT-Shop> should work in winblows if you have python installed but dunno about the sqlite
[14:34:55] <Tom_itx> i don't
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[14:37:28] <JT-Shop> nevermind I forgot the helper module
[14:38:21] <Tom_itx> aww..
[14:38:28] <Tom_itx> you mean i booted for nothing?
[14:38:39] <JT-Shop> I'll make it a windblows exe in a bit
[14:38:50] <JT-Shop> give me a min to update the zip file
[14:39:00] <Tom_itx> i just booted the atom
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[14:41:26] <jthornton> ok, I just uploaded the new zip
[14:45:59] <skunkworks> jthornton: stepping servos solve everthing
[14:46:32] <skunkworks> *stepper servos
[14:47:01] <jthornton> LOL
[14:47:36] <skunkworks> Do you see what I have been dealing with for years? People just don't get it :)
[14:47:44] <jthornton> yea, that's what I want to do... and climb Everest
[14:47:52] <jthornton> yea I see that
[14:48:20] <jthornton> skunkworks, give my calculator a short spin if you don't mind
[14:48:30] <skunkworks> where?
[14:48:45] <jthornton> http://gnipsel.com/shop/sfc/sfc.xhtml
[14:49:46] <jthornton> the only thing that works is the threading tab
[14:51:17] <atom1> ok how do i start this?
[14:51:32] <jthornton> ./sfc.pyc from the terminal
[14:51:33] <atom1> i've slept since then
[14:52:30] <skunkworks> jthornton: I currently have 12.04 installed
[14:52:50] <jthornton> will it run older python?
[14:52:57] <atom1> ImportError: No module named populate
[14:53:09] <skunkworks> http://pastebin.com/i66EAefk
[14:53:11] <jthornton> somehow you got the old file
[14:53:23] <jthornton> download again and refresh the page
[14:54:05] <jthornton> might need the py files instead
[14:54:08] <atom1> same error
[14:54:14] <jthornton> give me a minute
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[14:55:40] <jthornton> http://gnipsel.com/shop/sfc/files/sfcpy.zip
[14:55:46] <jthornton> try that one
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[14:56:39] <JesusAlos> Hi people
[14:56:50] <atom1> run populate.py?
[14:57:16] <jthornton> no sfc.py
[14:57:31] <atom1> ImportError: No module named data
[14:57:38] <atom1> line 23
[14:57:42] <jthornton> crap
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[14:58:05] <atom1> do i need something installed i may not have?
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[14:58:07] <jthornton> delete that line
[14:59:00] <JesusAlos> there are a way to open dxf files with EMC2?
[14:59:08] <jthornton> no
[14:59:25] <jthornton> use qcad or ...
[14:59:40] <atom1> cute
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[15:00:19] <atom1> actual measurement and calculate pitch diameter are blank
[15:00:23] <skunkworks> I still get the pastbin'ed error
[15:01:07] <jthornton> yuck
[15:01:11] <jthornton> thanks for trying
[15:01:12] <atom1> ISO M2 makes the screen go nuts
[15:01:36] <jthornton> yea the iso database is not fully poplulated
[15:01:54] <jthornton> really the only one with full database entrys are the UNC thread forms
[15:01:59] <atom1> it made the vertical about a mile long
[15:02:22] <JesusAlos> cute cad?
[15:03:18] <atom1> jthornton, something is up on resizing the window on M2
[15:03:21] <jthornton> anyhow at least I know it works on 10.045 now
[15:03:36] <jthornton> yea just try out the UNC thread forms
[15:03:48] <JesusAlos> I need convert dxf to g-code
[15:04:01] <jthornton> I'll get the database updated later today
[15:04:08] <JesusAlos> I use the convert2gcode, but i cant edit the route
[15:04:25] <atom1> also the window resizes on them when the next one selected it longer than the previous
[15:04:38] <jthornton> for UNC?
[15:04:42] <atom1> yes
[15:04:52] <atom1> and doesn't revert when you select the shorter one
[15:06:10] <jthornton> restart it
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[15:07:27] <atom1> is that the fix?
[15:07:32] <atom1> :)
[15:07:37] <jthornton> I have to add some code for the ISO to calculate in mm's
[15:08:08] <jthornton> the list should be limited enough so the screen doesn't expand that much
[15:08:22] <atom1> on the M2 it sure does
[15:08:45] <atom1> wonder how hard it would be to put the data in a scrolling list
[15:08:59] <jthornton> yea the size in the database is in mm so I need to do some more work on ISO calculations
[15:09:17] <jthornton> atom1, good idea
[15:09:33] <atom1> then you can limit your window size
[15:10:27] <atom1> M2 is just wrong though
[15:10:48] <atom1> it puts data at the top, leaves a big blank then finishes data way off the screen at the bottom
[15:12:14] <atom1> the blank is likely due to the unfinshed data file
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[15:12:42] <JesusAlos> please. There are a CAM software free?
[15:13:10] <archivist> some, but you need to put some effort in to use
[15:13:22] <archivist> heekscam is one
[15:13:58] <skunkworks> jthornton: when I have more time I will see if I can get an older version of python
[15:14:35] <archivist> each cam program has a niche where it works best, for anything else hand code your gcode
[15:17:17] <jthornton> skunkworks, thanks and when I get more time I'll see if it is possible to run this on python 3
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[15:25:27] <pcw_home> in my limited experience python 3 is pretty broken
[15:25:40] <jthornton> yikes
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[15:25:53] <jthornton> what comes on 12.04?
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[15:26:59] <pcw_home> nothing natively
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[15:28:14] <skunkworks> maybe that is my problem
[15:29:32] <awallin> I have python 2.7.3 on 12.04lts (if that was what you were asking..)
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[15:30:47] <pcw_home> It not actually broken, it just incompatible with Python2.x (and a lot of stuff that was nicely done in 2.x is still missing in 3.x)
[15:34:28] <jthornton> fixed a few broken things but ISO is broken http://gnipsel.com/shop/sfc/files/sfc.zip
[15:39:33] <skunkworks> jthornton: do you have a screenshot of following error on your BP?
[15:39:35] <skunkworks> :)
[15:39:49] <jthornton> I think I do have one
[15:39:57] <jthornton> but it is hard to see :)
[15:40:17] <skunkworks> (for homeshopmachinist...)
[15:40:27] <jthornton> Tom_itx, I got the scrolled viewport working
[15:40:46] <jthornton> I'll have to post it later... I'm off to a sale
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[15:49:23] <Tom_itx> don't spend it all
[15:49:26] <jp11> pcw_home: any opinionson trying to talk to a hiperface encoder
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[15:55:35] <pcw_home> Hmm needs a serial port but more importantly a interpolator
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[15:56:22] <jp11> could i not use the 7i44 as the serial port
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[15:57:52] <jp11> and would the new serial analogue daughter cards be fast enough for the sin cos part?
[15:59:17] <pcw_home> Maybe if the interpolation was done in the remote serial card code (we have planned to try this with the 7I87 when we get a chance)
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[16:00:22] <pcw_home> we were looking more at a replacement interpolator for Heidenhaine linear scales
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[16:01:19] <Jymmm> pcw_home: Couldn't that be done within the FPGA?
[16:01:22] <jp11> i just wanted to work on the hiperfaceserial part for now the interpolation is pretty straight forward
[16:02:19] <pcw_home> Yes it can be done in the FPGA but that requires fast A-Ds and high speed coms to FPGA = $$
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[16:03:09] <Jymmm> Really? the CPU/Serial port is faster than the FPGA?
[16:03:14] <pcw_home> we can do the A-D and interpolation in a $2 DSPIC at close to 1 MHz
[16:03:47] <pcw_home> we cannot buy a A-D chip as cheap as the DSPICS built in A-D
[16:04:05] <pcw_home> (4 MS sec 10 bit)
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[16:04:11] <jp11> thats the part where i get confused hiperface runs at 9600baud
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[16:04:52] <pcw_home> its absolute encoder part runs at 9600 baud
[16:05:03] <jp11> yes
[16:05:31] <pcw_home> but i think that quite crude (mainly for commutation))
[16:05:40] <Jymmm> pcw_home: TWO FPGAs!!! =)
[16:06:10] <pcw_home> no $2 FPGAs
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[16:06:32] <jp11> so isitjust used at power up?
[16:06:40] <Jymmm> pcw_home: Or FPGA and 64bit DSP!
[16:07:07] <Tom_itx> Jymmm, fix wsjr please
[16:07:26] <pcw_home> It can run all the time and its possible to sync them
[16:07:45] <pcw_home> the hiperface manual is pretty good
[16:07:46] <Jymmm> pcw_home: (the worlds fastest mario bros steper motor music instrument)
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[16:09:07] <pcw_home> But completing the interface to all digital would have been nicer (like SSI or BISS)
[16:09:20] <Jymmm> wsjr: Your connection has been bouncing really bad for the last couple of hours. change your nick to get back into the channel and ask someone to remove the ban for you.
[16:09:28] <jp11> yes i have been reading the manual.
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[16:10:07] <jp11> ssi also has sin cos as well i thought
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[16:11:31] <jp11> biss have not really dealt with
[16:11:33] <jp11> maybe i shold just look at hiperface to ssi conversion
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[16:11:39] <pcw_home> SSI and BISS are simple digital interfaces: RS-422 clock out, RS-422data in
[16:11:42] <Jymmm> lag
[16:12:06] <jp11> sick does make a converter
[16:12:11] <Jymmm> pcw_home: Just in general, do you play with DSPs much?
[16:12:20] <pcw_home> the price will make you sick
[16:12:25] <jp11> yes
[16:12:50] <pcw_home> Yes we use them for almost all the SSERIAL remotes
[16:13:00] <jp11> i have a huge bone to pick with sick
[16:13:23] <pcw_home> did Sick buy Heidenhaine?
[16:14:05] <jp11> sold me a 13k sick 3d camera that could not do the job
[16:14:13] <pcw_home> (I thought Hiperface was a Heidenhaine standard)
[16:14:15] <motioncontrol> pcw_home, good morning at all.now i use 13 bit on 5i20 can have 14 or 16 bit analog resolution ?
[16:14:26] <pcw_home> why?
[16:14:33] <jp11> nope sick owns hiperface
[16:14:45] <jp11> hedenhain is endat
[16:15:00] <motioncontrol> for particular system sensing
[16:15:03] <pcw_home> Ok
[16:15:17] <pcw_home> sensing meaning A-D?
[16:15:27] <motioncontrol> yes
[16:15:47] <motioncontrol> more accurate signal
[16:16:25] <pcw_home> more accurate signal out or in?
[16:16:47] <motioncontrol> out anaog +/- 10volt
[16:17:00] <pcw_home> 7I65 is 16 bit
[16:17:23] <motioncontrol> and can use it with 5i20
[16:17:25] <motioncontrol> ?
[16:17:29] <pcw_home> yes
[16:17:55] <motioncontrol> the driver is the same about 7i33 ?
[16:18:05] <pcw_home> no
[16:18:19] <motioncontrol> waths name ?
[16:18:31] <motioncontrol> whats name driver ?
[16:18:34] <pcw_home> hm2
[16:18:50] <Jymmm> Has anyone seen or can anyone confirm the formula here? http://www.referencedesigner.com/table/table_01.php
[16:18:53] <pcw_home> but BSPI module
[16:19:22] <pcw_home> also needs 7I65 comp
[16:19:45] <motioncontrol> ok thanks for info good work
[16:20:28] <pcw_home> we will have a high res A-D and D-A SSERIAL cards later this year as well
[16:20:38] <pcw_home> as well as a TC card
[16:21:27] <jp11> the 7i44 can do rs485 correct
[16:21:48] <motioncontrol> pcw_home, excuse 7i65 use only one connector the 5i20, remain 2 free ?
[16:23:09] <pcw_home> Yes one connector
[16:23:14] <jp11> what firmware would i use with a 5i20 and the 7i44 to control a port on the 7i44
[16:23:30] <pcw_home> Yes the 7I44 can do RS-485 on all channels
[16:24:05] <pcw_home> something with UA in it if you want UARTS
[16:24:48] <pcw_home> not sure if Andy driver supports RS485 (the hardware/firmware does)
[16:25:14] <jp11> do i just specify how many uarts i want on the hal line
[16:25:16] <pcw_home> (auto TXEN control from TXFIFO)
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[16:25:50] <pcw_home> probably you would have to find out from Andy
[16:26:26] <jp11> andy suggested it could work last night. just wanted to get your thoughts as well
[16:27:23] <pcw_home> hardware also has auto rxmask option for 1/2 duplex, not sure if thats supported either
[16:30:10] <jp11> how fast is the analogue on the pendant card?
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[16:31:36] <pcw_home> I think its inputs are sampled at 50 KHz but sserisl link update rates are only 1-10KHz or so
[16:32:26] <pcw_home> I forget whether its averaged or not (since only 8 bits are available)
[16:33:28] <jp11> ok so that wouldnt work. but ok to play with
[16:34:54] <jp11> andy said somthing lastnight about not having smart serial if i used the uart driver.
[16:35:32] <pcw_home> I think a hiperface to SSI converter could easily be done with LPCXXXX or DSPIC for a ~$10 parts cost (and a fair amount of head scratching)
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[16:36:53] <L84Supper> hiperface?
[16:37:03] <pcw_home> They are currently incompatible because of the IDROMs limited way of specifying register strides (also UART and Resolver are incompatible)
[16:37:25] <pcw_home> IDROMV4 will fix this
[16:39:05] <pcw_home> hiperface is Sicks high res absolute encoder interface
[16:39:49] <motioncontrol> pcw_home, excuse again can read 8 analog input on hal interface ?
[16:39:52] <L84Supper> http://www.sick.com/group/EN/home/products/product_portfolio/encoders/Pages/hiperface_multiturn.aspx
[16:40:21] <pcw_home> With 7I87 you can or 7I65
[16:41:09] <motioncontrol> good thanks
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[17:03:06] <jp11> still trying to understand the purpose of the sin cos signals.
[17:03:50] <awallin> resolver on motor?
[17:04:00] <jp11> from the drives perspective
[17:04:40] <awallin> I guess it is used for measuring the rotor position, more accurately than hall-signals
[17:04:47] <jp11> sin and cos on an absolute serial encoder. the sin and cos are incremental signals
[17:04:57] <jp11> must be
[17:05:17] <r00t4rd3d> Arduino released the 32bit Due today I guess....
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[17:05:49] <r00t4rd3d> 32bit ARM processor running at 84 MHz
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[17:07:48] <JesusAlos> hi
[17:08:01] <JesusAlos> Anyone can tell me where I can find the folder organization of emc2?
[17:11:54] <L84Supper> r00t4rd3d, have a link to it?
[17:12:14] <L84Supper> wondering which one they used
[17:13:45] <r00t4rd3d> http://www.wired.com/design/2012/10/arduino-due/
[17:24:14] <L84Supper> pcw_home, does anyone have turn key machine controllers with the mesa cards ad cpu in one enclosure?
[17:25:00] <pcw_home> Not that I know of
[17:25:17] <L84Supper> pcw_home, thanks
[17:25:25] <L84Supper> I could not find any
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[17:29:25] <L84Supper> http://greatcnc.en.made-in-china.com/product/ibNQHSmKhapM/China-Mini-CNC-Controller-for-Lathe-GREAT-60TT-.html
[17:29:44] <L84Supper> 32b ARM + FPGA but closed CNC software
[17:30:33] <skunkworks> Structure: Open-Loop
[17:30:45] <L84Supper> http://greatcnc.en.made-in-china.com/product/leymiunoJfpb/China-CNC-Controller-for-Milling-Machine-Great-150IM-II-.html
[17:31:02] <L84Supper> heh Structure: Semi-Closed Loop
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[17:32:00] <pcw_home> whatever that means
[17:32:08] <L84Supper> they seem to have high end controllers like Fanuc or simple controllers like ^^
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[17:33:34] <L84Supper> there's a CNC/automation show next month in Shaghai, I hope to know the status of the systems available by then
[17:33:45] <L84Supper> Shanghai even
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[17:36:26] <L84Supper> http://gtcnc.en.ecplaza.net/cnc-controller-for-milling-machining--127119-527476.html $2500
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[17:39:10] <L84Supper> http://www.ecplaza.net/trade-leads-seller/great-180m-cnc-system--4796659.html mach3 maybe?
[17:39:38] <r00t4rd3d> http://i.imgur.com/uuPuZ.png
[17:43:51] <Jymmm> L84Supper: two link http://itrademarket.com/chengdugreatcnc/1228578/cnc-controller-for-lathe-great-150itj.htm and you might have to urn odd Js to see this one: http://gtcncen.xm28.91cdn.com/index.php?option=com_content&view=article&id=48:great-150im-ii&catid=34:machining-center-cnc-system&Itemid=54
[17:46:26] <L84Supper> Jymmm, yeah, i was trying to find that models specs, they seem to make about 4 different models with different CPU's
[17:46:52] <Jymmm> L84Supper: I used google image search fwiw
[17:47:09] <L84Supper> http://www.salecnc.com/catalog/ anyone ever order from here?
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[17:48:25] <L84Supper> Jymmm, Chengdu Great Industrial website is down right now
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[17:49:00] <Jymmm> L84Supper: It's hosted elsewhere, disable javascript and reload =)
[17:50:04] <L84Supper> sometimes i don't know how they manage to sell anything with all these broken sites
[17:51:21] <L84Supper> I bet the ARM soc's are ARM9 2440's
[17:52:49] <L84Supper> memleak is working with the main RTAI dev to get support for the latest kernels
[17:53:02] -!- jp11 has quit [Ping timeout: 252 seconds]
[17:53:52] <L84Supper> other than RTAI on new kernels what else does LinuxCNC need help with?
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[17:56:31] <r00t4rd3d> who is memleak ?
[17:57:18] -!- skunkworks has quit [Remote host closed the connection]
[17:59:11] <L84Supper> whois r00t4rd3d ?
[18:02:21] <L84Supper> http://www.bmedm.com/product/262-cnc-machining-center-bvmc650-bvmc650-e473/
[18:02:51] <L84Supper> machine controller options: Mitsubishi, Fanuc, Siemens and Syntec
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[18:05:48] <r00t4rd3d> Error: The visible tool paths use different tools and the selected Post Processor does not support tool changing.
[18:06:07] <r00t4rd3d> is there a post processor for linuxcnc that does allow for tool changing?
[18:06:35] <awallin> r00t4rd3d: what CAM program are you using?
[18:06:44] <r00t4rd3d> aspire
[18:07:07] <r00t4rd3d> the pp i am using now is EMC2 Archs(inch)
[18:07:29] <awallin> you probably need to hack the post-processor yourself, or find someone who has done it already..
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[19:16:12] <jthornton> skunkworks, post a photo of the whole K & T so they get a size reference
[19:17:46] <r00t4rd3d> These people were insistent that I use an old barn board: http://i.imgur.com/oafnv.jpg
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[19:24:23] * archivist just had to go look at what skunkworks and jthornton were stirring :)
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[19:26:04] <archivist> so what happens when one drive on a mach setup has a following error, do the others carry on regardless for a while :)
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[19:28:44] <skunkworks> archivist: The only real way is to have the whole system estop.
[19:28:52] <skunkworks> which at that point - you have lost home
[19:29:25] <archivist> I realise that but do the mach lovers
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[19:29:40] <skunkworks> not many I would guess
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[19:30:34] <jp_1> pcw_home where can i find ua firmware
[19:31:02] <pcw_home> in card dist zip file from mesa
[19:32:41] <jp_1> freeby?
[19:34:39] <pcw_home> mesanet.com
[19:34:52] <pcw_home> normal web site zip file
[19:36:00] <pcw_home> source only, I dont think there are any pre-built UART bitfiles around, but I can search the attic...
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[19:39:16] <jp_1> I like tha pin fill basaxwards
[19:40:58] <jp_1> that pin file^
[19:41:10] <pcw_home> 5i23_svua8_8.bit,5i23uart.bit,7i47uart.bit,stua8_4.bit,svstua6_6_6.bit,
[19:41:12] <pcw_home> svua4_8b.bit,svua6_6.bit,svua8_4.bit,svua8_8.bit,ua2.bit in the attic, who knows what they are...
[19:41:50] <andypugh> I think I recognise some of them.
[19:42:51] <jp_1> Whats the leading SV mean? SVSS = smart serial SVUA = uart. what else is there?
[19:42:51] <pcw_home> Really need to get V4 IDROM in place so UART is not a black sheep
[19:43:03] <pcw_home> SV is servo
[19:43:36] <andypugh> I had to comment out the idrom test in uart last night. After midnight, so I could drill a hole :-)
[19:44:04] <jp_1> so ST = step or stepper
[19:44:17] <pcw_home> guerrilla tech
[19:44:27] <pcw_home> st = stepgen
[19:44:46] <andypugh> I have 5i23.svua8_8 and svstua6_6_6. Those are not in the standard distribution, so my theory is that they were made for me and/or Isssy
[19:46:17] <jp_1> care to throw one my way?
[19:46:22] <pcw_home> Yes
[19:46:29] <pcw_home> oops
[19:47:25] <pcw_home> Yes made for you or issy (or us before we fixed SSLBP to allow firmware updates on sserial remotes)
[19:48:34] <pcw_home> much slicker especially on 5I25s since we dont need to re-write the FPGA EEPROM/power cycle to update remote firmware
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[19:49:01] <andypugh> I managed to git-clean away my uart reader comp for the resolvers. I seem to have no copy anywhere, either.
[19:50:26] <JT-Shop> yikes
[19:50:42] <andypugh> I can re-write it fairly readily
[19:50:50] <andypugh> Possibly even better.
[19:51:25] <pcw_home> Ouch
[19:51:56] <pcw_home> does issy have a copy
[19:52:16] <andypugh> No, this was only for the Arduino resolver thing
[19:52:44] <andypugh> Actually… Perhaps someone has ideas how to do it better.
[19:52:52] <jp_1> did that work well?
[19:54:29] <r00t4rd3d> see the SlimJim is trying to counter Red Bull with the shortest free fall?
[19:54:33] <r00t4rd3d> http://i.imgur.com/6fAGg.gif
[19:54:43] <andypugh> I need to send 3 x 10bit numbers. I do that with 6x8bit backets, where the msb indicates if it is an MSB or LSB and the next 2 bits indicate which channel it belongs to. so 101xxxxx is bits 5-9 of the second channel.
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[19:58:25] <pcw_home> andypugh do you have a 7I65?
[19:58:51] <andypugh> No, I somehow managed to write that driver without the hardware.
[19:59:12] <andypugh> A 7i65 would be cheating :-)
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[20:01:31] <jp_1> how would a drive use an absolute position value from an encoder if its only reading it at 9600 baud?
[20:01:34] <pcw_home> Because it looks like somehow the driver or comp have gotten broken (comp wont compile cleanly anymore and with obvious patch it no longer works)
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[20:05:42] <andypugh> I have not noticed any compile problems.
[20:06:05] <andypugh> But I haven't tried to use one either.
[20:07:14] <pcw_home> the comp wont compile (do you have a different comp?)
[20:08:41] <andypugh> I very vaguely remember a conversation before I went to Spain. (which I am just looking back through).
[20:08:49] <andypugh> That was a segfault in the driver.
[20:10:04] <pcw_home> Thats right my memory is not what it used to be...
[20:10:05] <pcw_home> the patch was to the 7i65 comp
[20:11:00] <pcw_home> whats funny is we have a number of people using the 7I65 so the brokenness somehow got introduced
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[20:15:53] <andypugh> Very strange. It just failed to compile for me too
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[20:16:05] <andypugh> Let me look into this.
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[20:21:30] <pcw_home> some kind of global (naming?) change was made that broke it
[20:22:13] <andypugh> I can fix it, but it's a flaky fix.
[20:22:40] <andypugh> Change include "../../../hal/drivers/mesa-hostmot2/hostmot2.h"; to include "../../hal/drivers/mesa-hostmot2/hostmot2.h";
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[20:30:38] <pcw_home> andypugh I will try that on Monday
[20:31:15] <andypugh> What error were you seeing "implicit declaration of…." errors?
[20:32:16] <pcw_home> Its been a month or so so I dont remember
[20:32:58] <pcw_home> A customer provide a patch but then it did not work (SPI access broken somehow)
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[20:33:23] <FinboySlick> andypugh: That makes me think we need more variables named 'war' or 'independence'.
[20:34:06] <andypugh> "I have nothing to declare but my genius"
[20:35:17] <FinboySlick> andypugh: Nice concept for the obfuscated code contest. Single variable program.
[20:35:37] <FinboySlick> You only declare 'my_genius'.
[20:36:06] <andypugh> oscar_wilde.c
[20:43:51] <andypugh> pcw_home: I have a feeling that there is a wierder problem. I think that "make" works, but comp --install doesn't.
[20:45:11] <JT-Shop> pcw_home: I'm still getting a communication error http://imagebin.org/232652
[20:46:52] <JT-Shop> oddly it happens when I home
[20:47:01] <JT-Shop> sometimes
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[20:49:44] <andypugh> pcw_home: The existing version of mesa_7i65 does compile during the normal "make" process. It just can't be comp --installed because the path to the header is different.
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[21:02:57] <r00t4rd3d> cncbasher, you here?
[21:03:09] <Nick001-Shop> What mesa card would I use for these devices? http://www.zappautomation.co.uk/uim24302a-self-pulsing-miniature-stepper-driver-p-556.html?cPath=9_3_4
[21:04:23] <andypugh> It says "− Speed control through 0 - 5V voltage input 0.15 - 1900 RPM (UIM24302B)" so the 7i77 that you already have sounds good.
[21:05:05] <Nick001-Shop> I have 5i20 and 7i30
[21:05:27] <andypugh> Ah, I am confusing you with someone else then, sorry.
[21:07:03] <Nick001-Shop> same question - what mesa cards would I use?
[21:09:06] <andypugh> Well, as it is self-pulsing you can only send speed information.
[21:09:19] <andypugh> What are you intending to drive with it?
[21:10:10] <Nick001-Shop> stepper motors 5v 1amp with glass scale feedback if they still work
[21:11:34] <andypugh> OK, you definitely need the glass scale feedback if you are determined to use those drives. There are some more expensive ones on that site with conventional step-dir inputs.
[21:12:54] <Nick001-Shop> would they work with scales or encoders if the scales don't work
[21:12:55] <andypugh> Using the glass scales and the speed-control drivers you would effectively have a velocity-mode servo system and would need to use a PID in HAL to control the position. It might work rather well.
[21:13:39] <andypugh> Assuming you can get the scale data in to HAL.
[21:14:15] <andypugh> If you have encoders on the motors then those little drives can't mount to the motors (as they appear to want to)
[21:15:00] <Nick001-Shop> they say they can be standalone
[21:15:23] <andypugh> At that point, why not use a conventional stepper drive though?
[21:16:29] <Nick001-Shop> you recommended these about a week ago - looking for all my options to drive these
[21:17:13] <andypugh> I recommended them because I thought that you were wanting to put them on a servo machine that already had a 7i77 (I think).
[21:18:00] <Nick001-Shop> already has the steppers on them
[21:18:11] <Nick001-Shop> would the stepper ver or 7i30 drive these?
[21:18:41] <Nick001-Shop> of
[21:19:25] <andypugh> 7i32? It ought to.
[21:20:25] <Nick001-Shop> will it accept scale or encoder feedback?
[21:20:45] <andypugh> But did PCW say that the 7i32 doesn't work with Hostmot2?
[21:21:32] <Nick001-Shop> I don't know thought I could plug it into the 5I 20
[21:22:40] <andypugh> You can definitely plug it in. What I am not sure of is if it can be used with LinuxCNC-compatible firmware.
[21:23:00] <FinboySlick> andypugh: Are you familiar with the fonejacker/facejacker?
[21:23:06] <andypugh> No
[21:23:46] <andypugh> pcw_home: Am I right that the 7i32 doesn't work with the Hostmot2 driver?
[21:25:46] <FinboySlick> How I love british tv.
[21:27:03] <andypugh> Nick001: You could probably just use http://www.ebay.co.uk/itm/190680714045
[21:27:49] <Nick001-Shop> looking it up - dialup connection for now
[21:28:12] <andypugh> It's one of the cheap 3-axis TB6560 boards.
[21:29:24] <andypugh> It has opto-isolators so you could wire direct to the 5i20.
[21:29:32] <DJ9DJ> gn8
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[21:31:35] <Nick001-Shop> does that work with the mesa card or from the parallel port
[21:31:46] <andypugh> Either
[21:32:34] <andypugh> You would need a 50-pin header to DB25 cable.
[21:33:18] <andypugh> (Mesa cards don't _need_ daughter cards, it's just often convenient)
[21:34:30] <andypugh> That doesn't solve the problem of getting the scale / encoder data in, that data would totally bypass the driver board.
[21:35:36] <Nick001-Shop> this keeps getting complicated -)
[21:36:05] <andypugh> Only because you don't know what you want to do, as far as I can tell.
[21:36:37] <Nick001-Shop> I could put it in through a parallel port but I don't know if it would be fast enough. Does this scale data appear the same as encoder data?
[21:36:53] <andypugh> If we know whether you wanted to use scales or encoders or neither then it would be easier.
[21:37:20] <andypugh> I have no idea about your scales. (I have very little idea about any scales)
[21:37:55] <Nick001-Shop> there are scales on the slides already, I just don't know if they work. If they don't I would go to encoders probably
[21:38:29] <andypugh> Parallel port probably wouldn't be fast enough. And it seems daft to use it when there is a 5i20 in the machine
[21:39:43] <andypugh> Encoders don't normally fit well with steppers, as it is not clear what you can do with the encoder information.
[21:39:51] <Nick001-Shop> then I would have to use one of mesa's encoder input cards along with the three axis driver card
[21:39:56] <andypugh> (other than detect a stalled motor)
[21:40:13] <andypugh> Nick001-Shop: Yes
[21:40:36] <Nick001-Shop> I was under the impression that the encoder would allow a correction for a skipped step
[21:40:56] <pcw_home> The 7I32 is not supported by HostMot2 though it could be fairly easily
[21:40:57] <andypugh> In theory, maybe.
[21:41:33] <andypugh> In practice if you skip a step the motor tends to be near the limit, and trying to step more/faster isn't the answer.
[21:42:09] <andypugh> The 7i32 does have the advantage of encoder inputs.
[21:42:15] <pcw_home> You can use a stepmotor as a 2 phase servo (Thats what the 7I32 does) but it needs fast feedback (30 KHz sample rate minimum)
[21:43:26] <Nick001-Shop> how do I determine the sample rate
[21:43:29] <andypugh> That 30kHz between 5i20 and 7i32?
[21:43:43] <pcw_home> then you can't stall in stepmotor sense of the word
[21:43:44] <pcw_home> (because the phase of the applied power is always in sync with the rotor
[21:44:16] <pcw_home> just like a 2 phase BLDC
[21:46:57] <pcw_home> You can also use a normal ustepping step/dir drive with feedback to get higher accuracy
[21:46:59] <pcw_home> since you can "pull" the rotor this way and that against a load by varying the ustep
[21:48:25] <andypugh> I think we might be diverging from the point.
[21:48:33] <pcw_home> So its not totally useless to run a stepmotor/step/dir drive as a velocity mode servo
[21:48:34] <pcw_home> even with LinuxCNCs 1KHz servo thread but if you stall in this case. its all over
[21:49:26] <andypugh> I think Gabe is running a lot of velocity-mode stepper setups.
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[21:50:07] <pcw_home> Anyway there is no 7I32 support currently it was made for SoftDMC
[21:50:09] <pcw_home> (which has up to 60 KHz servo loop)
[21:51:01] <pcw_home> velocity mode step/dir also makes sense with linear encoders
[21:51:16] <andypugh> Does the 7i33TA have individual enable pins?
[21:52:13] <andypugh> Going back to the self-pulsing stepper drives, they have speed on analogue voltage, but direction on a pin.
[21:53:24] <andypugh> So the HAL setup would need to "abs" the PID and set a direction pin.
[21:53:28] <pcw_home> it has individual enables bu the are only good as enables
[21:54:03] <andypugh> Why?
[21:54:23] <andypugh> They don't appear as individual pins in HAL?
[21:57:38] <pcw_home> The are wired to the analog output enables so if low, analog out = 0V
[21:58:11] <andypugh> Ah.
[21:58:30] <pcw_home> (single purpose)
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[21:58:58] <andypugh> Is there any usable GPIO on a 7i33?
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[22:00:25] <pcw_home> No 4x PWM+DIR+ENA = 12 and 4x A+B+Z = 12 so all 24 I/O used
[22:02:20] <andypugh> And all conditioned on the board so turning off functions to make GPIO pins won't work either?
[22:03:37] <pcw_home> Yep you lose the I/O universality as soon as you have a daughtercard
[22:04:14] <pcw_home> unless its just a protection/passthrough like the 7I42/7I75
[22:05:11] <andypugh> Nick001-Shop: You need to work out what the output of the scales is. If it looks like quadrature signals then you can use those self-pulsing drives with a 7i3TA combined with a 7i37TA. You probably want the 7i37 anyway for the other general purpose IO like limit switches.
[22:05:22] <pcw_home> You could steal the TTL level DIR signal from FPGA card --> 7I33 cable
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[22:07:05] <Nick001-Shop> 7i3TA?
[22:11:27] <JesusAlos> Please
[22:12:01] <JesusAlos> eny body can say a reference about directory structure of EMC2?
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[22:21:49] <JesusAlos> Eny body?
[22:22:06] <JesusAlos> andypugh maybe?
[22:25:22] <cradek> JesusAlos: can you ask a more specific question?
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[22:30:31] <JesusAlos> I need to know more about emc2
[22:30:47] <r00t4rd3d> he wants to know which source file contains the directory structure
[22:30:57] <JesusAlos> I want to know what each directory
[22:31:04] <JesusAlos> yes
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[22:31:38] <JesusAlos> all directories involved
[22:34:02] <r00t4rd3d> JesusAlos, why do you want to know this? What are you trying to achieve?
[22:34:52] <JesusAlos> is just out of curiosity to know the structure using EMC2
[22:35:11] <JesusAlos> if one day you have to modify some of the program
[22:41:37] <JesusAlos> you know?
[22:45:50] <andypugh> It's not easy to answer.
[22:46:19] <JesusAlos> I know. Only need a reference literature
[22:46:24] <andypugh> I am not sure if you are even talking about the source code or the installed files.
[22:46:49] <JesusAlos> i refer the installed files
[22:48:15] <andypugh> Well, the machine configurations go in home/linuxcnc
[22:50:11] <JesusAlos> AndyPugh: do you have some manual or reference link?
[22:50:57] <andypugh> I don't think it is documented
[22:51:29] <andypugh> Well, the config files are.. I was talking about the executables and GUI files etc
[22:52:35] <andypugh> There are files in usr/bin sich as axis (which is a Python file, and can be edited)
[22:54:01] <andypugh> With support files in /usr/share/axis
[22:56:47] <JesusAlos> and what about lib/firmware ?
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[23:09:08] <JesusAlos> sorry I disconected
[23:09:36] <JesusAlos> AndyPugh: I ask for /usr/share/doc dyrectory
[23:10:05] <JesusAlos> and /usr/share/doc
[23:10:14] <JesusAlos> and /lib/firmware/hm2
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[23:38:58] <KimK> JesusAlos: I'm sure andypugh will be back in a while, he probably went to work in his shop. BTW, did you mean to ask about /usr/share/doc twice, or was that a typo?
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[23:41:47] <andypugh> JesusAlos: Well, yes, the Mesa firmware goes there too.
[23:42:27] <andypugh> I am not the best-placed to say where all the files are, as I almost always have run-in-place systems compiled from source.
[23:50:34] <JesusAlos> KimK: It was a error
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[23:52:46] <JesusAlos> EMC2 is programmed in Python language only?
[23:54:25] <andypugh> No, the majority is in C and C++
[23:55:42] <andypugh> Here it all is: http://git.linuxcnc.org/gitweb?p=linuxcnc.git;a=tree
[23:56:33] <andypugh> (There is even a directory map, but that's the source code, not the executables)
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[23:58:31] <andypugh> Hmm, interestingly that directory tree is massively out of date
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