#emc | Logs for 2011-05-04

[00:02:22] <JT-Shop> that looks like one happy camper
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[00:07:11] <JT-Shop> elmo40: http://www.briancoad.com/ncr/Amiidae.htm
[00:07:29] <elmo40> good with white wine?
[00:07:48] <JT-Shop> actually quite good if prepared right
[00:08:03] <JT-Shop> you can't freeze it as it turns to mush
[00:08:15] <JT-Shop> it has to be cooked fresh or canned
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[00:08:35] <JT-Shop> oh and you don't bring one into your canoe alive
[00:10:37] <elmo40> I bet
[00:10:54] <elmo40> has anyone played with DraftSight on Linux yet?
[00:12:00] <JT-Shop> no, I listen to Talking Heads instead
[00:14:38] <elmo40> sweet. there is a recall on my truck :/
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[00:15:32] <elmo40> silly heater controls. 3 symptoms to look for (according to the letter) blower may not function at all levels, burnt plastic smell, blower may not turn off even when vehicle is off.
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[04:47:25] <awallin> just posted a thing or two about cutting-sim to the list...
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[06:25:49] <The_Ball> Does anybody know if you use close loop servo/stepper control and use EMC as a DRO in e-stop mode, would backlash be active in the DRO display?
[06:26:28] <The_Ball> (backlash compensation)
[06:43:05] <awallin_> the dro/display would normally read a value based on encoder counts, which would not have any compensation applied to it
[06:43:08] <archivist> closed loop and backlash is a non starter, that has a discontinuity in the loop
[06:43:45] <The_Ball> I see
[06:44:33] <The_Ball> archivist, there isn't backlash in the closed loop, but there is backlash in the acme thread the servo drives, which emc compensates for when changing direction
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[06:45:51] <archivist> with out it in the loop, you can just lean on the table and it move and no way for emc to see the movement
[06:47:34] <The_Ball> that's of course true, but when changing the direction on the handwheel it would be nice for the DRO not to update for the first 0.05mm or whatever the backlash is
[06:47:51] <archivist> I do have compensation on my stepper machine (open loop), but im careful how I write code so readings are always on the driven side for a cut
[06:48:46] <The_Ball> sure, no climb milling... or is that down milling..
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[06:49:32] <archivist> yes no climb milling but that is also a method of using one side of the screw for measurment
[06:50:28] <archivist> that matters to me most on the rotaries
[06:51:46] <The_Ball> I've got a direct drive linear motor for a rotary, so shouldn't have a problem there, but that's a different project
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[10:57:33] <Paragon39> Does anyone know of any good classicladder tutorials. I am looking at implementing classicladder config with EMC2?
[10:59:20] <Paragon39> Think Ive found one ... http://linuxcnc.org/docs/html/ladder_classic_ladder.html
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[11:09:33] <jthornton> Paragon39: if you need any help with classicladder I'm pretty good with it
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[11:13:54] <Paragon39> jthornton: Thanks for the offer... I may well do as I am completely new to it. I purchased a 8x relay card and wish to send on / off signals to the relays by using classicladder (as an initial test) . The relay card connects to the paraport. Could you give me some quick get this going quick pointers? ;-)
[11:15:44] <jthornton> make sure you only use an output once
[11:16:12] <jthornton> think like a plc 1 scan inputs, 2 solve logic, 3 update outputs
[11:17:13] <Paragon39> Would that be a rung you just described?
[11:17:28] <jthornton> that is the whole program
[11:17:54] <jthornton> a plc reads all inputs, solves all logic, then updates all outputs
[11:18:23] <Paragon39> Right, I see what you mean.
[11:18:28] <jthornton> you might set up some pyvcp buttons to test with
[11:19:05] <Paragon39> That maybe the an easier route..
[11:19:16] <jthornton> so in hal you connect the pyvcp button to the ladder input and the ladder output to your parallel port pin
[11:19:43] <jthornton> what is the intended use of the relay card?
[11:19:59] <Paragon39> That is exactly what I am looking at...
[11:20:37] <jthornton> I use ladder for a few things like my way oiler and my tool turret
[11:21:24] <jthornton> for the oiler if there is motion it starts a timer after a numbers of seconds it gives a squirt of oil...
[11:22:09] <Paragon39> The card will eventually start main spindle, Control tool change motor 12v/24v Forward and reverse.
[11:23:12] <Paragon39> The tool changer uses greycode as output so was looking at classicladder for this purpose.
[11:23:35] <Paragon39> Like the oiler idea :-)
[11:23:38] <jthornton> so for the spindle it would be easier to just do that in hal unless you wanted to get experience with classicladder
[11:24:02] <The_Ball> jthornton, "tool turret", you show off ;)
[11:24:08] * The_Ball want's one
[11:24:14] <jthornton> yes, my tool turret has an absolute encoder
[11:24:22] <Paragon39> Sure hal would be easier and I will probably use that for spindle :-)
[11:25:12] <jthornton> but it would be a good exercise to do a simple one first
[11:26:04] <jthornton> later on today I'll put my tool turret classicladder on the forum
[11:26:06] <Paragon39> I am in the process of converting a Denford Starturn lathe to EMC2. Most of the signalling is 12v. For example it has baldour senses for home switches etc
[11:27:36] <Paragon39> jthornton: That would be great to see. As you mentioned I am looking at learning ClassicLadder for the interest of it as much as anything else.
[11:28:05] <jthornton> ok, I'll post it when I get out to the shop
[11:29:06] <jthornton> I'm using 2.5 on my lathe so the tool abort thing works say if my turret missed the latch
[11:29:08] <Paragon39> jthornton: Thanks, let me know when it's up and I'll take a look at it... :-)
[11:29:41] <Paragon39> jthornton: 2.5?
[11:30:09] <Paragon39> Version?
[11:30:10] <jthornton> EMC 2.5
[11:30:17] <Paragon39> OK :-)
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[13:19:26] <The_Ball> Would switching the A and B channels on a quadrature encoder simply reverse the direction, or would the pulse train be "invalid"?
[13:19:47] <cradek> reverse direction
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[13:20:15] <The_Ball> cradek, sweet, thanks
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[13:56:40] <JT-Shop> Paragon39: I added the way oiler example see if it makes sense http://www.linuxcnc.org/component/option,com_kunena/Itemid,20/func,view/catid,25/id,9584/lang,english/#9584
[13:57:09] <Paragon39> Thanks JT-Shop
[14:05:41] <JT-Shop> you might want to refresh the screen, I made a few corrections
[14:08:24] <Paragon39> JT-Shop: What do you mean by timer input on block?
[14:08:44] <Paragon39> Ie the timer is already running?
[14:09:37] <JT-Shop> the way a TP type of timer works is when you turn on the I (input) the output Q stays on for the duration of the preset
[14:10:30] <JT-Shop> so looking at the upper branch if moving > 0 then the run is true up to that point
[14:11:23] <JT-Shop> if TM2 is running and the Q output is on then the normally closed contact in front of the timer has changed states and is open
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[14:12:15] <JT-Shop> once TM2 times out then the N/C contact is closed and if moving is true then the timers starts up again
[14:12:33] <Paragon39> JT-Shop: I think it was the way I was reading it... ie as one sentence as opposed to If timer 2 output is on then block the input.
[14:12:56] <JT-Shop> yea, that is not really very clear
[14:13:48] <Paragon39> and not being familiar with the working of classicladder I took it literally.
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[14:13:57] <JT-Shop> lol
[14:14:14] <Paragon39> :-)
[14:15:48] <JT-Shop> do a refresh and see if it makes better sense now
[14:16:11] <Paragon39> That makes sense now :-) .. BTW I tested the relay with pycvp.
[14:16:34] <JT-Shop> cool
[14:16:41] <Paragon39> looking now
[14:17:22] <JT-Shop> the pinkish-red indicates that part of the rung is true
[14:18:46] <JT-Shop> when a rung or branch evaluates true all the way to the output then the output is true
[14:19:30] <JT-Shop> if any part of the rung up to the output is false then the output will also be false
[14:23:16] <mrsunshine_> http://www.youtube.com/watch?v=mpA9FHcC3Vg&feature=related <-- in the beginning of that film, at like 1 minute, damn that vise was smart =)
[14:24:09] <Paragon39> Right... I think line 2 and 3 are a little confusing they both mention 'if timer 2 output is on'
[14:25:11] <Paragon39> But they appear to have conflicting output?
[14:27:21] <Paragon39> It's probably the way I am reading it ;-)
[14:31:44] <JT-Shop> I'm trying to describe the state of the N/C contact
[14:32:24] <JT-Shop> the contact is TM2.Q so when the timer output is on the state of the contact is reversed from normal
[14:32:58] <JT-Shop> I added more
[14:33:01] <Paragon39> Arrr... got it!
[14:33:27] <JT-Shop> take a look at the other two screenshots
[14:39:05] <Paragon39> JT-Shop: Those screenshots make it much more clearer :-)
[14:48:21] <JT-Shop> Paragon39: do a refresh and see if the new image helps
[14:49:48] <JT-Shop> opps just fixed a typo
[14:50:37] <JT-Shop> I raccoon I better do some work
[14:51:03] <Paragon39> JT-Shop: Just did a refresh but it appears to be the same as before... Thanks for uploading this info JT!
[14:51:11] * anonimasu swapped the plasma for oxyfuel
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[14:52:17] <JT-Shop> look at the image in the first post I added numbers for each step
[14:53:55] <Paragon39> Oh OK I missed that.. Looks much clearer now.
[14:55:22] <JT-Shop> cool
[14:55:35] <anonimasu> since I need to cut stuff very soon
[14:55:52] <anonimasu> and I got my caliper and stuff ^_^
[14:55:54] <JT-Shop> HF still messing you up
[14:55:58] <anonimasu> yes
[14:56:03] <JT-Shop> that sucks
[14:56:11] <anonimasu> and I have no time to play with it anymore since I need to cut parts next week
[14:56:37] <anonimasu> luckily I have a torch aleady for it and a mount
[14:56:44] <anonimasu> so swapping it was like 8 minutes
[14:56:51] <JT-Shop> yea
[14:57:25] <Paragon39> JT-Shop: The explanation is much clearer. BTW the typo was it having two on's in the previous step 2 and 3?
[14:57:27] <JT-Shop> I remember reading in my TIG welder manual about having ground rods all around the shop for HF or something like that
[14:57:36] <JT-Shop> Paragon39: yes
[14:57:46] <Paragon39> That's why I was confused ;-)
[14:58:02] <JT-Shop> it's understandable
[14:58:20] <Paragon39> LOL... Seriously Thanks for this!
[14:58:23] <JT-Shop> perhaps it is a good example for classicladder now
[14:58:44] <JT-Shop> np
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[15:00:30] <anonimasu> how heavy is classicladder to get running?
[15:00:35] <anonimasu> do I need to do anything special?
[15:00:46] <anonimasu> I have a automated sensor cover for the zero sensor for the oxyfuel
[15:03:43] <JT-Shop> no just add a couple of lines to your config
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[15:07:37] <JT-Shop> anonimasu: http://www.linuxcnc.org/docview/html/ladder_classic_ladder.html#r1_5
[15:07:40] <anonimasu> nice
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[15:13:27] <anonimasu> and as usual everything has to be custom..
[15:18:54] <anonimasu> it cracks me up to see people that call tenths tight tolerances...
[15:27:20] <JT-Shop> it is tight for a brick layer
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[15:30:42] <anonimasu> indeed :D
[15:31:07] <archivist> pretty good for a chalk mark
[15:31:19] <anonimasu> but for turned parts?
[15:31:20] <archivist> tenths of what!!!
[15:31:26] <anonimasu> an inch...
[15:31:54] <archivist> they are more likely referring to tenths of a thou
[15:32:15] <anonimasu> yes, that's what I meant
[15:34:08] <anonimasu> a new haas seems not to be able to hold that
[15:35:00] <anonimasu> I figured 0.025mm
[15:36:54] <archivist> some have unrealistic expectations for mechanical accuracy
[15:37:17] <archivist> far too many error sources
[15:37:21] <anonimasu> for a new cnc lathe 0.01mm should not be heavy
[15:37:30] <anonimasu> not at all
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[15:39:28] <archivist> look at the accuracy of ballscrews and look at that again
[15:39:44] <skunkworks> scales!
[15:40:11] <archivist> well they have errors too :)
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[16:04:33] <archivist> for real fun watch a piece of work change size due to temperature rise as you cut it .0wtf
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[17:08:59] <cpresser> did anyone successfully use a stepgen combined with a RC-Lowpass to generate a analogue-signal?
[17:09:25] <cpresser> i am wondering it it is possible to controll my VFD (which has a 0-10V input) with this method
[17:09:54] <archivist> look at pwm output
[17:11:52] <archivist> example at http://www.linuxcnc.org/docview/html/examples_spindle.html
[17:12:55] <archivist> so its pwmgen not stepgen
[17:13:06] <cpresser> nice. ty
[17:14:17] <PCW> If you are picky run a CMOS PWM buffer powered from a reference voltage into a Op Amp (x2 gain for 5V buffer)
[17:15:05] <PCW> well into a RC filter with a op amp fiollower+gain
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[17:15:25] <IchGuckLive> Connor: ?
[17:15:39] <Connor> IchGuckLive: What?
[17:15:53] <IchGuckLive> how is the pedant going ?
[17:16:08] <jdhNC> I'm the pedant
[17:16:10] <cpresser> i am wondering if it would be easier to controll it via rs485.. both ways seem like a lots of work to get it done right :)
[17:16:45] <Connor> Not done much the past few days. I got some I/O expanders in so I can test that.. Going to buy one of those MPG's in the next few days.
[17:17:04] <jdhNC> where are you sourcing the MPG?
[17:17:36] <IchGuckLive> lcd -> http://www.pjrc.com/teensy/td_libs_ST7565.html
[17:18:03] <IchGuckLive> adruino has the lib inside for that 128x64
[17:18:16] <Connor> Probably from CNC4PC
[17:18:20] <IchGuckLive> and it is cheep with multi collor under 20Dollars
[17:18:36] <Connor> untill I can find the Chinese source.
[17:19:27] <IchGuckLive> i go with HRPG-ASCA as the Jog weehl for 7,50Euro
[17:19:51] <IchGuckLive> it has 100Puls/rev
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[17:20:11] <IchGuckLive> and is in the subroutine with interupt easy to read
[17:20:41] <Connor> That only has around 16 CPR.. You really need a bit better..
[17:20:48] <Connor> 100CPR is were I want to be.
[17:20:59] <jdhNC> connor: did you see the taiwan ads on CNCzone?
[17:21:14] <Connor> Dunno.. which ones? I see ads on there all the time.
[17:21:21] <IchGuckLive> i found all my parts at one store
[17:21:45] <IchGuckLive> so i will add for the European side a Baylist at the store
[17:21:59] <IchGuckLive> so there is one klick to get all the parts
[17:22:54] <IchGuckLive> this ist the control http://www.mec.dk/images/77/155-1349.jpg
[17:23:00] <IchGuckLive> x/Y
[17:23:14] <IchGuckLive> 2 Stepswitches
[17:23:31] <IchGuckLive> 5 mini switches to get the menue to the LCD
[17:24:25] <IchGuckLive> all costs now at 54Euros including the LCD128x64 with no backlide this will ad 7 eur if individuel color is wanted #
[17:24:39] <Connor> jdhNC: Which ad you talking about?
[17:24:57] <jdhNC> http://www.cnczone.com/classifieds/showcat.php?cat=500&ppuser=135019
[17:25:20] <IchGuckLive> http://www.lcd-module.de/produkte/dog.html this is the color modules
[17:26:45] <IchGuckLive> one wheel is the price of all components together
[17:27:45] <Connor> IchGuckLive: That's whole idea of making it open source.. If you want to use a low cost encoder.. your welcome to.. I'll write the code in such a way that it can work with it. you'll have to set a multiplier.
[17:28:20] <IchGuckLive> agree
[17:28:39] <IchGuckLive> so all we now have to find the basic to start with
[17:28:53] <IchGuckLive> Arduino
[17:29:02] <IchGuckLive> Atmel manuell
[17:29:05] <Connor> one LCD I have.: http://www.adafruit.com/index.php?main_page=product_info&cPath=37&products_id=198&zenid=182756d17ecf5b304050a1c13cea5fea
[17:29:15] <IchGuckLive> this is the same
[17:29:21] <Connor> and the other: http://www.adafruit.com/index.php?main_page=product_info&cPath=37&products_id=188&zenid=182756d17ecf5b304050a1c13cea5fea
[17:29:28] <Connor> Those are the two I have.
[17:29:39] <IchGuckLive> its on the ks controller that fits the 5V
[17:29:57] <jdhNC> I have the 4x one, with a serial backpack
[17:30:04] <IchGuckLive> so the pcb is only without the cd 4050
[17:30:36] <Connor> I have a I2C Backpack, and a custom serial Arduion backpak.
[17:30:58] <jdhNC> i2c would be nifty, where did you get that?
[17:30:59] <Connor> but, my idea was to drive it all from one micro.. I picked up some I2C I/O expanders that can be used for all the buttons.
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[17:31:13] <Connor> http://www.adafruit.com/index.php?main_page=product_info&cPath=37&products_id=292&zenid=182756d17ecf5b304050a1c13cea5fea
[17:31:30] <IchGuckLive> Connor: pcf 8574
[17:31:37] <jdhNC> nifty
[17:31:39] <Connor> I don't do pick.
[17:31:42] <Connor> err. PIC's
[17:31:58] <IchGuckLive> no the i2c expander
[17:32:35] <Connor> I picked up a different I/O.. let me look what it was.. brb
[17:33:20] <IchGuckLive> the worl largest Modelltrain world is controld by 40.000 of this low cost and 400Kbits fast chips
[17:33:27] <Connor> MCP23016
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[17:34:28] <Connor> again, open source.. use which ever I/O chip you want.. I don't care.. :) If it talked I2C.. we should be in good shape.
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[17:39:49] <IchGuckLive> http://www.pictureupload.de/originals/pictures/040511193904_4module.jpg here is a pic of 2 lines eatch 16 moules total of 1024 IO
[17:45:26] <IchGuckLive> http://www.youtube.com/watch?v=tVURtmxwqMc 4min video -> 800 trains 450 cars 40 ships and lots more every 15min Night time !
[17:45:36] <IchGuckLive> sorry its in german
[17:45:51] <Connor> I've seen it.. I do model trains too.
[17:47:32] <IchGuckLive> B)
[17:51:03] <ssi_> I got some inexpensive encoders from digikey, but the mounting backs of them aren't big enough to be able to use the existing tapped holes in the backs of my steppers
[17:51:35] <ssi_> and I don't want to pull the backs off the steppers to drill and tap new holes, cause I've heard letting the rotor move around laterally will screw up the holding torque
[17:51:47] <ssi_> think I could get away with epoxying the encoder back to the stepper?
[17:54:17] <IchGuckLive> ssi do you have a link for them
[17:54:20] <jdhNC> jb-weld!
[17:54:24] <ssi_> gimme a sec
[17:54:48] <IchGuckLive> im still seatrching for a 2000Puls/rev for my AC servo
[17:55:02] <jdhNC> http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=102-1307-ND
[17:55:03] <jdhNC> perhaps
[17:55:28] <ssi_> yea that's the one
[17:55:51] <IchGuckLive> this is a A/B without index
[17:55:58] <ssi_> the one I have has index
[17:56:13] <ssi_> that link is for one with index
[17:56:19] <ssi_> Output TypeQuadrature with Index (Incremental)
[17:56:23] <IchGuckLive> there are on Faulhaber DC motors for 5Euros
[17:56:42] <IchGuckLive> so you got the 56xx series
[17:58:12] <ssi_> the mounting bases on them are kinda sacrificial
[17:58:20] <ssi_> so I figured epoxying them down probably wouldn't be a big deal
[17:58:33] <ssi_> and there's not really any force on the encoder
[18:02:11] <IchGuckLive> http://stores.ebay.de/Electronic-Components/Potentiometer-/_i.html?_nkw=encoder&submit=Finden&_fsub=1028044018&_sid=35040098
[18:02:36] <IchGuckLive> 25Euros
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[18:07:27] <IchGuckLive> the 5540 A12 one is nice to divide also
[18:09:25] <IchGuckLive> ok i ned to go BY
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[18:11:43] <bzzzz> buy!
[18:12:28] <bzzzz> i'm curious, do any of you cnc your pcb (say, isolation routing)? how long does the process take, on average?
[18:13:26] <bzzzz> i'm thinking of milling out some traces on copper-clad with a ginormous bridgeport that's doing nothing atm, but a friend says that it'd take forever
[18:13:41] <jdhNC> that's why I got my router, but I have yet to get around to milling any boards
[18:14:19] <bzzzz> jdhNC: wait, so you bought a router because a cnc would take much longer?
[18:14:40] <bzzzz> doh, i get it
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[18:27:15] <ssi_> I started cutting some tormach holders out of some 303 stainless that I have lying around
[18:27:56] <ssi_> writing the gcode by hand for it, cause I still don't trust myself with lathe cam :P
[18:29:07] <JT-Shop> I cut some profiles on the lathe today using ngcgui it is so easy
[18:29:48] <ssi_> I haven't tried it...
[18:29:57] <ssi_> is it in the default install?
[18:31:34] <ssi_> doesn't look like it
[18:31:49] <ssi_> and the only site I can find with it is "currently unavailable due to its great popularity."
[18:32:30] <ssi_> aha: http://gnipsel.com/shop/emc2/ngcgui/ngcgui.tgz
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[18:33:52] <JT-Shop> yea I mirrored that for Dewey
[18:34:58] <ssi_> that your site?
[18:35:16] <ssi_> yeah I guess so
[18:37:02] <ssi_> hm so you can run the lathe semi-manually with it?
[18:37:04] <ssi_> that'd be handy
[18:38:50] <Jymmm> JT-Shop: Great idea for you... http://en.wikipedia.org/wiki/Monowi,_Nebraska
[18:38:59] <JT-Shop> semi-automatic actually
[18:39:55] <JT-Shop> ssi you can do all the basic ops you can dream up and concatenate them together into one program with one button push
[18:41:22] <JT-Shop> I need to get the rest of my subroutines up on the site
[18:43:07] <Jymmm> JT-Shop: You need to start JTown, population 2.5
[18:44:59] <ssi_> hrm sounds awesome
[18:46:12] <ssi_> how do I run it standalone?
[18:47:21] <JT-Shop> the instructions are all in the readme, but it is not very powerful as a standalone
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[19:07:18] <bzzzz> floating point poplation? that can't be good.
[19:08:12] <ssi_> JT-Shop: got it integrated into axis... created an OD feature, and when I hit finalize, it says "Unable to open file <od>"
[19:08:53] <ssi_> in auto.ngc... looks like it's referring to this: o<od> call [1.625][0.750][0.020][0.001][400][14][1800][-1.4][0.050][1][1][9]
[19:08:58] <ssi_> so I guess my includes aren't working properly?
[19:19:42] <JT-Shop> ssi_: are you using 2.4 or 2.5?
[19:19:47] <ssi_> 2.4 I believe
[19:19:52] <ssi_> yes, 2.4.6
[19:20:24] <JT-Shop> put your subroutines in your nc_files directory
[19:20:31] <ssi_> hrm ok
[19:20:42] <JT-Shop> only way I've got it to work on 2.4
[19:20:52] <ssi_> do I need to change the ini to be ../nc_files/od.ngc instead of ./subroutines/od.ngc?
[19:20:57] <JT-Shop> my plasma is still 2.4
[19:21:10] <JT-Shop> one second
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[19:22:17] <JT-Shop> I used the full path /home/loginname/emc2/nc_files/xx.ngc
[19:22:57] <ssi_> ok
[19:23:44] <JT-Shop> as I recall ngcgui would work but EMC couldn't find the file unless it was in the nc_files directory
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[19:26:13] <ssi_> hrm, same issue
[19:26:17] <ssi_> lemme try one more thing
[19:27:42] <atom1> ok i should have more than enough supply for the steppers now
[19:28:08] <atom1> picked up another surplus transformer to go with the one i had
[19:28:42] <atom1> 6 2200 uf caps should be plenty of filtering
[19:28:59] <Jymmm> atom1: voltage?
[19:29:03] <atom1> 50v
[19:29:06] <Jymmm> of those caps
[19:29:07] <atom1> dc
[19:29:10] <atom1> 63
[19:29:16] <Jymmm> Hmmm
[19:29:16] <atom1> minimal but will be ok
[19:29:33] <Jymmm> those six caps in series/parallel?
[19:29:43] <atom1> i'll parallel them
[19:30:02] <atom1> and the 2 transformers after the diode packs
[19:30:25] <Jymmm> ehhhhhhhhh, ok
[19:30:38] <atom1> gotta run
[19:30:43] <Jymmm> keep looking though
[19:30:57] <atom1> it should be ok
[19:31:09] <atom1> if not i can split the steppers
[19:31:28] <Jymmm> sure, but singular always better, especially if problem
[19:31:32] <Jymmm> arise
[19:31:49] <Jymmm> look at torriods too
[19:31:53] <atom1> i know but you can be picky with surplus
[19:32:06] <atom1> so 12A @50v
[19:32:09] <Jymmm> No no, keep looking thru the surplus i mean
[19:32:24] <atom1> that was all he had
[19:32:26] <Jymmm> always good for a backup
[19:32:30] <atom1> i have been
[19:33:00] <Jymmm> In 7+ years I still haven't found one.
[19:33:34] <Jymmm> While I have switching PS's, I still look at every chance I get.
[19:33:53] <ssi_> what, toroids?
[19:34:05] <Jymmm> torroid or xfmr
[19:34:23] <ssi_> I've got a couple of small ones
[19:34:45] <Jymmm> we all do, that's the problem =)
[19:34:50] <ssi_> but they're +/-15V bipolar toroids that I used to use for audio stuff :P
[19:34:51] <Jymmm> all SMALL ones
[19:35:05] <ssi_> and I paid a damn fortune for them
[19:35:05] <ssi_> heh
[19:35:06] <Jymmm> Need like 700+ VA
[19:35:26] <Jymmm> and always oddball voltages
[19:35:29] <ssi_> get some cores and wind them :)
[19:35:33] <Jymmm> 67V or 52V
[19:35:39] <Jymmm> ssi_: you first
[19:35:41] <ssi_> hahaha
[19:35:47] <ssi_> i'll stick with switchers, thanks :)
[19:35:54] <Jymmm> exactly
[19:38:21] <ssi_> JT-Shop: did you write this facing routine that's on your site?
[19:42:58] <JT-Shop> yes
[19:43:11] <ssi_> ; variable 5410 is the current tool diameter so make sure
[19:43:11] <ssi_> ; your tool table is set correctly...
[19:43:20] <ssi_> what are you referring to there, the nose radius?
[19:43:26] <JT-Shop> yes
[19:43:29] <ssi_> oke
[19:43:52] <ssi_> looks like it feeds toward X = 0, and goes past 0 by the amoutn of the radius
[19:43:55] <ssi_> to cut the pip, yes?
[19:44:00] <JT-Shop> if the sub uses g41/42 you need the radius set in the tool table
[19:44:06] <JT-Shop> yes
[19:44:10] <JT-Shop> and that too
[19:44:27] <JT-Shop> you got it working?
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[19:44:34] <ssi_> not exactly
[19:44:44] <ssi_> it's not giving me errors about not finding the files anymore
[19:44:46] <ssi_> and I see how that works now
[19:45:07] <ssi_> on O<xyz> it's looking for an xyz.ngc in the $PROGRAM_PREFIX dir
[19:45:23] <ssi_> but when I finalize, it gives me a spinny cursor and seems to lock up indefinitely
[19:45:23] <JT-Shop> yep
[19:45:44] <JT-Shop> sounds like an endless looooooooop
[19:46:03] <ssi_> love those
[19:46:27] <ssi_> I don't have any cutter diameters in my tool table at all
[19:46:30] <ssi_> I guess I need to get on that :P
[19:46:38] <JT-Shop> try this one it is better http://www.linuxcnc.org/component/option,com_kunena/Itemid,20/func,view/catid,40/id,4728/lang,english/
[19:48:09] <JT-Shop> yea, crap that one on my web page is hosed
[19:48:13] <ssi_> haha
[19:48:23] <JT-Shop> #&ltstock-diameter> = #1 (=1.000 Stock Diameter)
[19:48:28] <JT-Shop> should be
[19:48:32] <ssi_> I fixed those already
[19:48:35] <ssi_> no biggie
[19:48:37] <JT-Shop> #<stock-diameter> = #1 (=1.000 Stock Diameter)
[19:48:44] <JT-Shop> http://www.linuxcnc.org/images/fbfiles/files/face2.ngc
[19:49:22] <ssi_> what's different?
[19:49:23] <JT-Shop> use that ^^^ one
[19:49:57] <ssi_> I see
[19:50:03] <ssi_> < G0 X[#<stock-diameter>+0.050] Z[#<start-z>+0.050]
[19:50:03] <ssi_> ---
[19:50:04] <ssi_> > G0 X[#<stock-diameter>+#5410] Z[#<start-z>+#5410]
[19:50:06] <ssi_> proper cutter comp
[19:50:08] <JT-Shop> it ain't full of &lt than and &gt
[19:50:13] <ssi_> plus set zero
[19:50:52] <JT-Shop> I use the set zero to face off the end of the stock then set the end of the stock as Z0 for the rest of the ops
[19:50:54] <ssi_> ok silly side question for you
[19:51:10] <ssi_> you are calling T#<tool> M6 G43
[19:51:22] <ssi_> in my code that I've written so far, I've done G43H#<tool>
[19:51:58] <ssi_> does G43 alone give you the offset for the selected tool, and H allows you to use offset for a separate tool?
[19:52:00] <JT-Shop> the order doesn't matter, I just prefer it that way as it is logical in my mind LOL
[19:52:06] <JT-Shop> oh H
[19:52:10] <JT-Shop> I missed that
[19:52:21] <ssi_> yea ok that looks right
[19:52:30] <ssi_> looks like G43 alone uses the current T's slot
[19:52:42] <JT-Shop> H allows you to use an offset of a tool that is not loaded AFAIK without looking
[19:52:43] <ssi_> T2 G43H3 would give you tool 2 but tool 3's compensation
[19:52:58] <JT-Shop> yea, crassh city
[19:53:01] <ssi_> heheh
[19:53:24] <JT-Shop> that's another reason I to Tn M6 G43
[19:53:30] <JT-Shop> I do
[19:53:36] <ssi_> yeah I'll stop using the H
[19:53:38] <Jymmm> JT-Shop: Crash City? Nah, I prefer JTown instead.
[19:53:41] <ssi_> I just thought I had to for wahtever reason
[19:54:17] <JT-Shop> Jymmm: hurry up and come over there's lots of insulation left to hang on the walls today
[19:55:14] <Jymmm> JT-Shop: Wouldn't that cause a riot in JTown?
[19:55:23] <ssi_> yeah I dunno why, but it's still hanging up in a loop whenever I try to finalize
[19:55:28] <ssi_> nothing on the console
[19:57:58] <JT-Shop> odd
[19:59:37] <JT-Shop> ssi_: try this one http://www.linuxcnc.org/images/fbfiles/files/od-210333afdb0cd20f1a1878435175df8c.txt
[19:59:58] <ssi_> you think it's the od sub itself causing the issue?
[20:02:09] <ssi_> same thing... I hit finalize, I see it populate the code box at the bottom
[20:02:14] <ssi_> but spinny cursor and locked up
[20:02:29] <ssi_> and high load on the machine, too
[20:02:41] <Jymmm> pause the pr0n dl
[20:02:49] <ssi_> dedicated machine
[20:03:02] <Jymmm> dedicated pr0n machine? nice!
[20:03:10] <ssi_> nah, that's a different machine :D
[20:03:17] <Jymmm> ah, gotcha
[20:03:29] <psha> single task machines are coming back!
[20:03:32] <psha> bb
[20:03:34] -!- psha has quit [Quit: leaving]
[20:03:50] <Jymmm> Yeah, their called VM's.
[20:04:10] <ssi_> yup
[20:04:28] <ssi_> back in the day, we had tiny wimpy machines and aspirations for big tasks
[20:04:32] <ssi_> so we created beowulf clusters
[20:04:36] <ssi_> now we have fast machines and nothing to do with them
[20:04:39] <ssi_> so we virtualize :D
[20:04:58] <JT-Shop> ssi_: must be something in the config then
[20:05:23] <JT-Shop> this is the step by step for 2.4.x http://www.linuxcnc.org/component/option,com_kunena/Itemid,20/func,view/catid,40/id,8285/lang,english/
[20:05:30] <Jymmm> I have this 2U 8 removable bay full depth box that's just too deep. Else it be a NAS box in a heartbeat.
[20:05:30] <ssi_> http://pastebin.com/gngX0ZDi
[20:05:59] <ssi_> i followed those directions exactly
[20:06:27] <ssi_> except I used the lathe subs
[20:06:40] <ssi_> and I moved them from my config's subroutines dir into ~/emc2/nc_files/
[20:09:05] <JT-Shop> the tcl and py files are in your config directory?
[20:09:10] <ssi_> correct
[20:09:31] <JT-Shop> Hmmmmm
[20:10:24] <JT-Shop> and everything seems correct until you hit finalize?
[20:10:41] <ssi_> yep
[20:10:50] <ssi_> I see it generate g-code in the box, and then it locks the hell up
[20:11:06] <ssi_> one time I hit finalize, and it had a tool number that didnt exist in my tool table
[20:11:13] <ssi_> it gave me an error dialog about that, and locked up
[20:11:18] <ssi_> and every time I Have to kill emc
[20:12:05] <JT-Shop> you see g code in the white box at the bottom of Axis?
[20:12:09] <ssi_> yes
[20:12:41] <JT-Shop> I'm stumped at the moment
[20:12:53] * JT-Shop hollers Dewey!
[20:12:58] <ssi_> heheh
[20:16:02] <JT-Shop> try this one http://pastebin.com/8bCDmKs0
[20:16:06] <JT-Shop> name it test.ngc
[20:16:40] <ssi_> ke
[20:20:14] <ssi_> I got a "missing equals sign" in auto.ngc
[20:20:17] <ssi_> and then the same spinny lockup
[20:22:47] <JT-Shop> #<length> = #1 (=1 test length)
[20:22:49] <JT-Shop> opps
[20:23:40] <ssi_> k trying again
[20:24:47] <ssi_> same thing
[20:24:53] <ssi_> #<length> = #1 (=1 test length)
[20:24:56] <ssi_> is what I made it
[20:25:01] <fragalot> could EMC run via a GPIO instead of parallel port?
[20:25:07] <ssi_> dialog says "equal sign missing in parameter setting"
[20:25:14] <ssi_> line 20, auto.ngc
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[20:25:34] <ssi_> and locked up as usual
[20:36:21] <JT-Shop> did you restart EMC after making the change?
[20:36:25] <ssi_> yes
[20:36:57] <ssi_> I'll try it again
[20:38:18] <ssi_> same thingh :P
[20:40:37] * fragalot takes this as a "possibly"
[20:41:08] <fragalot> i'm looking at the nohrtec JrMX with the 24bit GPIO option to replace my halfdead laptop cnc controller
[20:45:11] <JT-Shop> ssi_: something must be wrong with the tcl or py file
[20:45:19] <cpresser> fragalot: if you know how to change the GPIO-Pins, this is possible. you just need to create a hal-component for it
[20:45:53] <fragalot> hmm...
[20:46:11] <ssi_> JT-Shop: yeah, and I don't know where to begin :P
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[20:46:42] <jt-plasma> logger[psha]: log
[20:51:18] <jt-plasma> ssi_: pm
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[21:20:24] <ssi_> JT-Shop: if you're around... the taper-od sub, looks like it cuts the taper in one pass... is that accurate?
[21:22:08] <JT-Shop> yep, that one could use some work
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[21:22:28] <JT-Shop> to expand it a bit to make several passes
[21:22:32] <ssi_> yeah I may have to do that
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[21:26:05] <ssi_> but that's the gist of what I've been trying to roll around in my brain all day
[21:26:10] <ssi_> an effective routine for cutting a taper
[21:26:27] <ssi_> for the nose and shank tapers on the TTS toolholders I'm working on
[21:26:47] <JT-Shop> cool
[21:26:54] <JT-Shop> I'm out of here for a while now
[21:27:29] <atom1> maybe i'll wire these up and take a pic
[21:27:43] <atom1> don't have a proper board yet for the caps
[21:27:49] <Jymmm> CODEWORD
[21:28:02] <atom1> little slow on the trigger there
[21:28:42] <atom1> if that's a bot it triggered on the wrong phrase
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[21:50:26] <Jymmm> http://news.yahoo.com/s/ap/20110504/ap_on_re_us/us_rental_computer_spyware
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[21:54:33] <aggrav9d> hey, people.
[21:55:25] <aggrav9d> i'm trying to remember the name of an DIY CNC kit. it started as a shopbot and became so heavily modified they started selling under a new name. I'm positive it's not Joe's. anyone know what I'm talking about?
[21:55:30] <aggrav9d> google is failing me.
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[22:53:34] <tom3p> is this normal for type 1 homing when home switch is the limit switch?
[22:53:35] <tom3p> i get msg "exceeded positive soft limit on joint" yet axis is homed and moves limit to limit w/o further messages?
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[23:20:18] <atom1> can i use the 7i47 as a pendant interface or do i need something else to go with it?
[23:20:24] <atom1> aside from the 7i43
[23:22:07] <atom1> i was planning to use the 7i47 along with the 7i43 as a stepper interface with limit switches etc
[23:23:24] <mikegg> if you have a spare encoder counter, I think you can..
[23:24:12] <atom1> i was looking at one of the mpg's and some buttons
[23:24:26] <atom1> http://homanndesigns.com/store/index.php?main_page=product_info&cPath=15&products_id=30&zenid=87985edee7234d38aa76bd9392a1f909
[23:24:28] <atom1> or similar
[23:25:55] <atom1> i haven't got to the software side yet
[23:26:09] <tom3p> "7i47 12 channel motion oriented differential interface" for a pendant?
[23:26:32] <atom1> and stepper & limit input
[23:26:33] <tom3p> "The 7I47 is mainly intended for motion oriented applications, for example as an output buffer and line receiver for connecting step and direction drives and encoders to Anything I/O FPGA cards."
[23:26:47] <atom1> iirc, pcw suggested it
[23:26:50] <atom1> but i wanted to be sure
[23:27:17] <tom3p> check the cpnversation PCW knows best, but it may have been another number
[23:27:22] <atom1> there should also be plenty of pins left on the 7i43
[23:28:14] <atom1> the 7i47 would serve as a buffer for the stepper drives too
[23:34:44] <tom3p> grab the manual and see what you think http://www.mesanet.com/pdf/motion/7i47man.pdf
[23:35:06] <atom1> i think i have it already
[23:51:56] <tom3p> ask PCW, i just think that board is 12 serial channels, good for serial data and serial devices, not so good for buttons w/o additional encoding/interfacing