#emc | Logs for 2011-05-16

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[00:05:42] <tom3p> Jymmm, 300V there's several machines that use 100-170V open voltage, and i wont have to go inside the controls with 0-300 ( tho i need a brigde to always insure pos potential )
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[00:09:34] <Jymmm> tom3p: Ah, cool
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[00:16:11] <tom3p> the machine i train people on tomorrow http://imagebin.org/153454
[00:16:58] <Jymmm> you wuss,
[00:17:00] <tom3p> trying to go over the jinglish manuals now, preparing for the endless WTFs tomorrow
[00:17:03] <Jymmm> ;)
[00:17:51] <Jymmm> "This is the OH SHIT button...."
[00:18:28] <Jymmm> It'll make em laugh, and a good start for training
[00:18:57] <tom3p> oh this is cool, there's a Servo Power button, when the program is all done it beeps forever, the guys were hammering estop to make it shut up... you have to press 'Servo Power' HAHAHA
[00:19:39] <tom3p> its only intuitive in Taiwan
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[00:45:49] <pcw_home> tom3p: THCAD output is frequency ~100KHz at 0V and ~1MHz at 10V (or 300V) Since its a V-F,
[00:45:51] <pcw_home> resolution is inversely proportional to sample interval so about 10 bits at 1 KHz
[00:55:51] <Tom_itx> sorry for the noobness here but does this look like a reasonable line for an estop input pin?
[00:55:54] <Tom_itx> net estop-loop <= hm2_[HOSTMOT2](BOARD).0.gpio.09.in
[00:57:02] <Valen> I need to make me one of those lol
[00:57:15] <Valen> also one for when the mill is on so a big flashy light goes off lol
[00:57:25] <Tom_itx> well, i'm just trying to get up to speed as quick as possible
[00:57:27] <Valen> we always wind up leaving it on
[00:57:30] <Tom_itx> reading mostly
[00:57:40] <Tom_itx> being confoosed alot
[00:57:47] <Valen> you can hit f1 pretty quick ;->
[00:57:50] <Jymmm> Valen: YOu and your Disco Balls! Enough already... the 70's are dead!!!
[00:58:04] <Valen> ooh perty need one of those
[00:58:22] <Jymmm> Valen: Then CNC one!
[00:58:33] <Tom_itx> it'll go on the pendant when it's done
[00:58:35] <Jymmm> and mirror poish it too
[00:58:40] <Valen> billet Al chromed disco ball
[00:58:54] <Jymmm> No chrome, polish it!
[00:58:57] <Valen> eventually I hope to have an xbox controller for jogging etc
[00:59:09] <Valen> need to polish it before its chromed Jymmm
[00:59:22] <Jymmm> Valen: mirror polish finish
[00:59:35] <Jymmm> big ass buffing wheel!
[00:59:50] <Tom_itx> hrm. ask about estop and end up with disco balls
[01:00:09] <Jymmm> Tom_itx: Got Safety Relay?
[01:00:13] * Valen thinks its still the weekend for Jymmm
[01:00:19] <pcw_home> Any GPIO pin not otherwise used is valid as an input
[01:00:22] <pcw_home> whether its a reasonable choice really depends on what
[01:00:23] <pcw_home> daughtercard its routed through
[01:00:33] <Tom_itx> i was just wondering about the syntax
[01:00:35] <Jymmm> Valen: It still is Sunday 1800
[01:01:23] <pcw_home> Syntax looks right
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[01:01:48] <Tom_itx> pcw_home, right now the actual pin is arbitrary
[01:02:48] <Valen> I'm thinking I'll wire up the estop pin to my 12V supply
[01:03:07] <Valen> thats what my physical estop kills
[01:03:14] <Valen> so it'll keep emc and it in synch at least
[01:03:15] <Tom_itx> wire it up to you house mains
[01:04:35] <pcw_home> Also a subtle thing, inputs that are used for special functions, are still available as GPIO (you can read an enabled encoder input pin as GPIO)
[01:04:37] <pcw_home> this is of course not true for outputs (A step/Dir or PWM outputs thats enabled is just that and its associated output bit is unconnected)
[01:04:49] <Valen> wire it up to *your* house mains and steal your eletrizical
[01:05:38] <Valen> what do you get if you try to use one as an input?
[01:06:14] <Valen> just wondering is all
[01:06:24] <Tom_itx> pcw_home, so you can borrow the signal for other purposes?
[01:06:41] <Tom_itx> read it and do an alternate thing with it
[01:07:12] <Valen> (in the avr world you can read in the state of a pin set as an output, in pics you can actually read it in and even though it may be set to a 1 if the current draw is high enough and the pin hasn't gotten over the threshold it'll read as a 0)
[01:07:55] <Tom_itx> you can also set an avr pin from it's read side
[01:08:01] <Tom_itx> "PINx"
[01:08:29] <Tom_itx> instead of "Px0"
[01:11:40] <pcw_home> Not sure if the driver lets you read a special function output (like step)
[01:11:41] <pcw_home> The hardware does ( the input path always reads the pin state, the output path is either output latch or special function)
[01:12:53] <tom3p> pcw_home, thx for the info on the THCAD. i'll hook it to sink EDMs to monitor the process
[01:14:06] <tom3p> i'm sure its fast enuf for the nc side, but i'd like something much faster for the process control side, so may have to learn some xilink ( haha! and am stuck in deciphering a 22cv10 right now )
[01:15:08] <pcw_home> Its pretty well protected from nasty conducted EMI (high impedance on both high an low inputs an only a few pF between input and output which can be differential))
[01:16:29] <pcw_home> Hey I did a lot of stuff with 16V8s I think that or Altera EP320s/EP900s is where I started
[01:16:48] <tom3p> my stuff can be + or - 170Vdc so i'll put a bridge in fromt to present the THCAD with positive info (not +/- but pos or neg input, thus the bridge)
[01:17:18] <pcw_home> The THCAD has a bipolar mode
[01:17:32] <tom3p> i got ICTPLACE running in DOSBOX unuder ubuntu :)
[01:18:21] <pcw_home> I still vaguely remember the funny Altera language for the EPXXX chips
[01:18:54] <tom3p> bipolar output i thought, input should be 0/+300 on the 300V model?
[01:19:31] <pcw_home> Theres a jumper for +-150V (but you need to calibrate)
[01:20:58] <tom3p> no problem, i'll keep my hand out of both sets of internals and use a bridge diode to insure positive input to THCAD
[01:21:31] <pcw_home> We supply the calibration frequencies for 0-300, but the offset is only like +-2% of FS (jumper is a user slider)
[01:22:26] <pcw_home> (offset for bipolar mode is +-2% is should say))
[01:24:02] <tom3p> FS? slider? ( i get the idea of the +/22% offset in bipolar mode but the two terms are unknown )
[01:24:08] <tom3p> 2%
[01:24:38] <tom3p> full scale & wiper of a pot?
[01:25:08] <tom3p> just dense, sorry
[01:35:32] <Tom_itx> pcw_home, who does your boards btw? the silkscreen is top notch
[01:36:17] <pcw_home> I think we are using Suntak now They are quite good
[01:36:53] <pcw_home> Just a 2 position 3 pin jumper
[01:37:51] <Tom_itx> i've seen some that looks like it's done with a rubber stamp
[01:39:13] <pcw_home> Well originally is was done with silk screen (the lay is often still called that), but now its mostly liquid photoimageble material (like the solder mask)
[01:39:23] <pcw_home> (it was done)
[01:39:40] <pcw_home> the layer
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[01:40:08] <pcw_home> man, my typing is deteriorating
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[02:00:09] <Jymmm> pcw_home: i hav kno ida wat ur talkin bout
[02:00:43] <Tom_itx> well by george, the estop pin works
[02:01:32] <Tom_itx> pcw_home, 1k/680 divider btw
[02:01:43] <Tom_itx> 1.9xx v
[02:03:16] <Tom_itx> now why doesn't the mpg
[02:05:18] <Tom_itx> maybe because estop was stuck on before?
[02:06:50] <tom3p> 5V input? ( closer to 4.7 maybe )
[02:07:04] <Tom_itx> yes
[02:07:43] <tom3p> what product are you using? mesa?
[02:07:56] <Tom_itx> 7i43 with a 7i47
[02:08:19] <Tom_itx> the divider is for the differential input on the 47 so i can use it single ended
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[02:18:25] <willburrrr2003> I spent the day learning to use my CNC mini-lathe today, lots of reading, learning how to use the tool table and set up my tooling, getting and installing ngcgui and several subroutines from out of the forums, learning how to use the ngcgui facing routine, tool touchoff, and homing my machine. Then after all that I loaded up a piece of old stock, and tried it out. Using ngcgui, with Bigjohn's face2 subroutine I performed a mostl
[02:18:46] <willburrrr2003> the video link is http://youtu.be/UXEJtYGgibo
[02:19:16] <willburrrr2003> at the end I show my lathe, control panel and screen...
[02:20:36] <willburrrr2003> Big thanks to JT-Shop, for pointing me to the ngcgui :D it is very very cool!
[02:22:39] <i_tarzan> aluminium?
[02:22:52] <willburrrr2003> yes
[02:24:29] <tom3p> very nice, congratulations! i can see the chips mirrored in the work surface
[02:25:02] <willburrrr2003> Thanks, the finish turned out really good :D I was very pleased with it
[02:27:07] <willburrrr2003> tomorrow I will work on getting that backlash fixed, then start planning on how to mount my limit switches and start working on getting rpm feedback so I can do some threading
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[03:17:35] <tom3p> in the THCAD manual "The velocity output must be offset and scaled to get a direct voltage number"...
[03:17:36] <tom3p> that scaling & offset is done in Hal? (not in THCAD, not in hostmot2 )
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[03:21:47] <tom3p> gnite all
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[07:10:39] <ursa> anybody know if the latest live CD contains fixes later than Nov. 2010?
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[08:23:38] <Loetmichel> good morning
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[13:01:25] <JT-Shop> I busted ass yesterday to get my AC installed for todays 60F overcast temperatures LOL
[13:02:32] <Jymmm> JT-Shop: Because it'll be to mugy?
[13:02:36] <skunkworks_> heh - funny. - we had frost warnings last night
[13:02:38] <Jymmm> too
[13:02:56] <JT-Shop> today is nice but by Friday it will be warm again
[13:03:28] <JT-Shop> R43 in the attic of the shop was finished yesterday as well :)
[13:09:40] * jthornton wonders if he can get a lathe output from REALIZE somehow...
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[13:21:04] <JT-Shop> naw it's faster to hand code it...
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[14:05:23] <cradek> JT-Shop: I've used it to generate a profile, replace X with Z and Y with X, then hand-edit the result
[14:05:58] <JT-Shop> ok thanks
[14:08:37] <JT-Shop> the reason it is faster is my ACAD is 2000LT and I don't think it does lisp
[14:09:40] <skunkworks_> We have some old lisp that needs to be re-worked to work on newer versions of acad.
[14:12:09] <JT-Shop> I don't even know how to run a lisp :/ never done it before
[14:13:04] <cradek> yeah I think LT isn't programmable
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[14:31:27] <skunkworks_> I know the version of LT we had didn't allow lisp
[14:31:44] <skunkworks_> but I think it was 97 or something like that
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[15:39:17] <Loetmichel> re @ home
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[15:41:59] <willburrrr2003> JT-shop, are you around this morning?
[15:43:17] <Loetmichel> [15:02:06] <JT-Shop> I busted ass yesterday to get my AC installed for todays 60F overcast temperatures LOL <- [grin] same here. got my AC in the car fixed: fluid full, no cooling. dismantled the half ton of plastics to get to the motor: Nor Compressor belt :-( -> new belt, new idler, work -> ~340$ :-( today: overcast, 16C :-(
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[15:47:42] <willburrrr2003> I had a great weekend, made my fist auto cut with my lathe :D using (gncgui....thanks again JT-Shop for pointing me towards it!!) Learned lots about my machine setup, and using it...lots of reading thought the docs, but worth it in the end!!! Got a nice vid of my first cut, It was a facing cut using my newly quired ngcgui subroutines. If you would like to see it , it is here http://youtu.be/UXEJtYGgibo , at the end I pan
[15:52:08] <skunkworks_> willburrrr2003: awesome!
[15:53:21] <Loetmichel> willburrrr2003: nice. last thing i did with EMC was a Aircraft wingtank
[15:53:35] <JT-Shop> yes I am
[15:53:43] <Loetmichel> http://www.cyrom.org/hajo/aussentank.avi
[15:54:02] <JT-Shop> willburrrr2003: very cool!
[15:55:53] <JT-Shop> Loetmichel: at least we will be cool today
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[15:58:10] <The_Ball> Loetmichel, cool, are you making a mold to make a fiber glass drop tank?
[15:58:17] <willburrrr2003> JT-Shop, what suroutines do you use with your lathe?
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[15:59:02] <willburrrr2003> Loetmichel, that is way cool :D nice vid!
[15:59:04] <Loetmichel> The_Ball: i have worked for a Model shop, yes. That was a Mold for a drop tank, correct
[15:59:12] <Loetmichel> about 800mm long ;-)
[15:59:16] <JT-Shop> face, OD, ID, thread, tap, profile, taper OD...
[15:59:26] <JT-Shop> more but I forget
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[15:59:29] <The_Ball> Loetmichel, sweet, a jet?
[15:59:36] <Loetmichel> yes
[16:00:14] <Loetmichel> that CNC-mill i had build has stayed at my old Employer
[16:00:23] <The_Ball> 800mm long, hmmm, starfighter?
[16:00:44] * The_Ball takes a stab in the dark
[16:00:48] <Loetmichel> at home i have only a little mill with 200mm * 110mm*110mm travel
[16:02:25] <The_Ball> got a few but I haven't gotten around to flying in over a year :( http://wigen.net/hobby/f-16/images/DSC_0871.jpg.php
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[16:02:29] <lilalinux> aloha Loetmichel
[16:02:33] <Loetmichel> The_Ball: no, a f16 IIRC
[16:02:38] <Loetmichel> moin billy
[16:03:17] <willburrrr2003> I have the OD, ID, thread, taper OD, face subroutines so far. Would like to find all that apply to using a lathe and get them. I would aso love to find a subroutine that lets me insert any g-code I want in my gncgui , so that in between my various cut routines I can ad moves, or any othr g-code line in series with the code generated by the gncgui ...any ideas on that one?
[16:03:26] <Loetmichel> oh, no, wasnt the F16, the tanks were for a L39 Albatros
[16:04:21] <Loetmichel> my ex-company made the Lighting for this model also: http://www.cyrom.org/hajo/l39demo.avi
[16:06:21] <Loetmichel> but i am not sure which model got this Tanks
[16:06:24] <Loetmichel> to long ago
[16:07:05] <The_Ball> nice, that's cool
[16:07:24] <JT-Shop> willburrrr2003: I "think" you can do that with the custom tab
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[16:10:24] <willburrrr2003> hate it when internet connection drops like that, missed all responses for last 5 mins :(
[16:11:01] <willburrrr2003> if any were to me , please re-post them
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[16:12:19] <JT-Shop> [11:07] <JT-Shop> willburrrr2003: I "think" you can do that with the custom tab
[16:13:11] <willburrrr2003> Thanks JT I will try it henI get home tonight
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[16:15:05] <JT-Shop> willburrrr2003: not up do date but I'll try in the am to update it with all the current ones I use http://gnipsel.com/shop/emc2/emc2.xhtml
[16:15:57] <willburrrr2003> have to work on my backlash compensation for my x-axis tonight, loosing steps on change of direction...very small, but on the canned facing the end result is a sharp cone lon the face of the work piece. Verified lastnight that it is not the height of my tool...first cut cleans the face off completely....successive cuts start leaving the cone point, each pass making the base of it a little wider
[16:16:53] <willburrrr2003> Thanks JT_Shop, will be nice to find all the useful rouines :)
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[16:17:34] <JT-Shop> sounds more like you loose a bit on direction change maybe
[16:17:44] <JT-Shop> stepper?
[16:19:10] <willburrrr2003> yes it is a stepper, but I think that my backlash isn't correct and that I am loosing a little on each direction change because of it.
[16:19:55] <JT-Shop> if your backlash is the issue you would loose only once
[16:20:06] <cradek> lose lose lose
[16:20:16] <JT-Shop> lol
[16:20:28] <cradek> the word is lose!
[16:20:41] <JT-Shop> if you loosely lose it then...
[16:20:45] <cradek> if you lose some distance each direction reversal, maybe something is LOOSE
[16:20:46] <willburrrr2003> even if it comes up short each direction change?
[16:21:03] <cradek> sorry I guess I'm in a moood
[16:21:05] <willburrrr2003> check tightness, all seems good
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[16:21:21] <JT-Shop> at least cradek fingers work today
[16:21:23] <willburrrr2003> hehe it's MONDAY< WE ARE ALL IN A MOOD :)
[16:23:30] * JT-Shop mind is over at the Hardinge...
[16:23:46] <willburrrr2003> if it turns out to be missed steps instead of backlash, do I solve that by dropping speed of that axis?
[16:24:08] <syyl> that, or acceleration
[16:24:14] <JT-Shop> could be direction change timing also
[16:24:22] <JT-Shop> what kind of drives?
[16:24:28] <cradek> how much do you lose? how are you measuring it?
[16:25:47] <willburrrr2003> I don't know how much , my dial indicator was out on loan...picking it up tonight so I can measure it. I am currently watching the x-axis miss center on my canned face cut and each pass it falls a little shorter
[16:26:14] <willburrrr2003> I am driving the steppers with a HobbyCNCpro board, via parallel port
[16:26:37] <JT-Shop> willburrrr2003: do you know about the stepper test?
[16:28:45] <willburrrr2003> yes, still a little fuzy on its use though.... I got my backlash numbers using my dial indicator, telling the axis to move a specific amount (1") then telling it to move (1") in the other direction. I took the measurement that it fell short by and put that in as my backlash
[16:29:41] <cradek> a better way is to approach a point very slowly from the left, then approach that same point very slowly from the right, and record the difference
[16:29:42] <JT-Shop> it just moves an axis back and forth at rapid and if no steps are lost the last move puts you back at the start point
[16:30:48] <JT-Shop> willburrrr2003: did you read about using backlash in the docs?
[16:31:04] <willburrrr2003> Good things to know and check tonight, will give both a shot guys :D
[16:32:55] <willburrrr2003> JT-shop, no I got that from chatting on here. I new what it was and that I needed to account for it, but my version of the stepconf wizard doesn't have the backlash slot in the axis window like the version that came with the 8.0.4 release I tried a couple years ago. Once I knew what to enter into my INI file, and where I entered it in manually.
[16:33:06] <willburrrr2003> knew*
[16:33:50] <JT-Shop> read the Integrators Manual AXIS config section about using backlash
[16:34:23] <willburrrr2003> JT-Shop, ok will do :)
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[16:43:09] * JT-Shop managed to program a profile using cutter comp and g92 to cut it in stages now if I don't lose my mind or my too loose pants don't fall off I'll write another one
[16:44:47] <willburrrr2003> haha
[16:45:14] <willburrrr2003> got that loose, lose thing down now JT ;)
[16:47:08] <cradek> yayyy
[16:47:11] <cradek> my work here is done
[16:47:55] <cradek> please journey on to teach the rest of the world!
[16:52:43] <ssi> JT-Shop: what are you doing?
[16:55:44] <JT-Shop> making a hex driver to pick up a leveling foot for a stove and run it into the bracket on an automatic that runs a 3 second cycle time
[16:57:01] <ssi> ya lost me
[16:57:14] <ssi> related to the profile you mentioned 15 minutes ago?
[16:57:46] <JT-Shop> yea, the nose has a round end with a taper then a straight section then it's hex after that
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[16:58:15] <ssi> ah ok... cutting it out of hex stock?
[16:58:22] <JT-Shop> using ngcgui to cut the profile a bit at a time
[16:58:23] <JT-Shop> yes
[16:59:26] <willburrrr2003> I see that when I add backlash to my axis, I need to make sure to increase my STEPGEN_MAXACCEL to 1.5 -2.0 times the MAX_ACCELERATION of that access....seems like this could cause my axis to loose steps.... I will keep reading lots of good stuff in these docs ;)
[16:59:33] <skunkworks_> cradek: yay - I don't have to finish my reply to the list about realtime performance. (you, of course, said it much better)
[17:01:07] <skunkworks_> I was starting to lose my mind!
[17:01:11] <skunkworks_> ;)
[17:01:33] <cradek> willburrrr2003: LOSE
[17:01:38] <cradek> good god man
[17:01:57] <ssi> ahahahah
[17:03:21] <cradek> and someone just forwarded me a mail from the list with a bunch of added italian stuff
[17:03:52] <cradek> might be spam, might be a request of some kind...
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[17:11:09] <willburrrr2003> hahaha got me Cradek, seems like JT is rubbing off on me ;)
[17:18:18] <willburrrr2003> Ok, this says a lot right here ...from the Integrators manual " If you added backlash you need to increase the STEPGEN_MAXACEL up to double the MAX_ACCELERATION in the AXIS section of the INI file for each axis you added backlash to. EMC uses "extra acceleration" at a reversal to take up the backlash. Without backlash correction step generator can be just a few percent above the motion planner acceleration" I did not make
[17:19:19] <willburrrr2003> if I wasn't at work I would already be in my INI file making corrections ;)
[17:19:49] <skunkworks_> That sounds a bit like hooey to me...
[17:20:49] <archivist> well ive heard it, its real and bad for steppers
[17:20:58] <willburrrr2003> Skunkworks, why do you say that?
[17:22:11] <willburrrr2003> JT told me read the integrators manual, and so far this is what I am getting from it... if I am not "getting it" please advise as to what I am missing...
[17:23:52] <skunkworks_> I don't know why - if you have tuned the steppers for a certain accelleration - that you would double it for backlash...
[17:24:46] <archivist> thats the worse thing you can do to a stepper
[17:25:00] <archivist> I would class that as a bug
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[17:25:48] <archivist> btw acceleration in emc does not have much/any relation to a steppers needs as far as I know
[17:26:07] <skunkworks_> unless it has something to do with that emc has to be able to stop at each endpoint - so in it's trajectory planning it actually used acc/2. but that still doesn't make sense why you would actually double it.. I think something got lost in translation. Maybe cradek would know.
[17:26:14] <archivist> just set low enough to not lose steps
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[17:31:01] * JT-Shop has discovered that orientation has an impact on cutter comp
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[17:34:01] * ssi has discovered that digging through emc source makes his brain go crosseyed
[17:34:17] <willburrrr2003> what I get out of the manual is that the STEPGEN function can't generate steps fast as the motion planner function, and that causes the axis to slowly creep off, so that my steps lost are actually in the software side of things and not my steppers "missing/skipping" steps....may be wrong but thats how it reads to me...
[17:34:46] <willburrrr2003> hence the reason for increasing the stepgen speed...?
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[17:54:34] <skunkworks_> willburrrr2003: I don't know. seems odd to me though.
[17:57:02] <willburrrr2003> me too, will give it a shot tonight and se how it goes. I will let you guys know if that change does fix my problem or not. I appreciate all you guys's input....helps me think&check better for things I am missing or not getting right....and to go back to the manuals and re-read (or in this case read for the first time) information that is vital to how well my machine works....
[17:57:19] <willburrrr2003> see* (coorection before Cradek gets me ;) )
[17:58:33] <willburrrr2003> damn miss-spelled even that.....I guess I am fumbly fingers today hehe
[18:12:53] <JT-Shop> some chatter on backlash http://www.linuxcnc.org/irc/irc.freenode.net:6667/emc/2006-04-01.txt
[18:21:59] <willburrrr2003> Thanks JT-Shop, will look it over :)
[18:23:33] <JT-Shop> it's just old chatter from long ago
[18:25:20] <willburrrr2003> i have a couple things to try/checkout tonight ....that means my chat time today, and my reading is being somewhat productive. The more I learn about my configs and setup, the better my machine(s) will be....
[18:26:10] <JT-Shop> yep, just beware of the speelllingg bee
[18:26:42] <willburrrr2003> haha, yes I will watch out for that ;)
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[18:27:50] <skunkworks_> I got my uno's - look pretty cool. (got the led blinking :))
[18:28:22] <jdhNC> uno?
[18:28:29] <skunkworks_> arduino
[18:28:32] <willburrrr2003> I have to say that getting and embedding into my config gncgui was pretty easy, and adding in the subroutines I downloaded off the forums too :)
[18:29:20] <willburrrr2003> nice, what are you running with your Arduino? I've been looking into them and the seeduino's for an rc tricopter I want to build....
[18:29:57] <skunkworks_> neat - right now I am just playing - it was bougt to play around with a resolver interface that andy wrote/built
[18:30:03] <skunkworks_> bought
[18:30:43] <willburrrr2003> cool, they are really neat little units...and very powerful too!
[18:30:44] <skunkworks_> this - http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?ResolverToQuadratureConverter
[18:33:19] <willburrrr2003> Very nice, an informative page on a great little project! Are you going to make your own shield board or purchase one from the guy in the article?
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[18:37:58] <IchGuckLive> Hi all
[18:38:28] <IchGuckLive> hoe is working on the mill Pendant ? i always forgot his nick ?
[18:38:45] <IchGuckLive> all the parts are now here
[18:39:00] <skunkworks_> willburrrr2003: I bought a few from andy
[18:39:16] <IchGuckLive> and the test is done with the 20Eur GLCD -> http://www.youtube.com/watch?v=i8RYpjEJe0U
[18:39:46] <IchGuckLive> its late more tomorrow i will start to make the first PCB plate
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[18:40:26] <IchGuckLive> Loetmichel: ?
[18:41:03] <Loetmichel> sie wnschen?
[18:41:11] <IchGuckLive> Du hier voll krass
[18:41:31] <Loetmichel> wo sonst?
[18:41:34] <Loetmichel> oh sorry
[18:41:39] <IchGuckLive> auch wieder war !
[18:41:43] <Loetmichel> english channel
[18:41:47] <IchGuckLive> ok
[18:41:51] <IchGuckLive> querry ?
[18:41:56] <Loetmichel> why?
[18:42:03] <IchGuckLive> Stepper speed
[18:43:20] <Loetmichel> ask here, maybe someone has to contribute?
[18:43:34] <IchGuckLive> ok no problem i will start the mill pendant pcb tomorrow so far By
[18:44:12] <IchGuckLive> but on eagle ?
[18:44:50] <IchGuckLive> Loetmichel: 1 path ever i get 2
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[18:45:02] <IchGuckLive> with a polygon GNGD
[18:45:56] <IchGuckLive> BY till tomorrow
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[18:46:15] <JT-Shop> http://tomwade.me/tw/awesome/pp/PhilosophyForOldAge_GeorgeCarlin.pps
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[19:34:53] <Connor2> Tom_itx: Got my DRO for the pendant working with EMC over the weekend.. along with it Displaying correctly mm/inchs AND machine vs relative position based on what's set via AXIS.
[19:35:25] <Connor2> and, the XYZA selector works correctly (for having the MPG hardwired to EMC via parport)
[19:36:07] <Connor2> next steps are feed override, spindle override and start/stop/pause buttons
[19:36:19] Connor2 is now known as Connor
[19:37:33] <willburrrr2003> sound slike a great addition to your machine Connor!
[19:38:01] <Connor> It's been fun..
[19:38:22] <Connor> Stupid display is too large for the enclosure I want to use...
[19:38:32] <Connor> Looks like I'm going to have to use a different one..
[19:39:06] <Loetmichel> enclosure or display?
[19:39:08] <Loetmichel> ;-)
[19:39:13] <Connor> Either. :)
[19:39:20] <Connor> Haven't decided yet.
[19:39:35] <Connor> The display is a 128x64 mono graphics..
[19:39:56] <Connor> and burns up allot of I/O on the Atmega328 chip.
[19:40:10] <Connor> So much, that I had to use a I2C Expander chip for buttons.
[19:40:13] * Loetmichel simply had mounted the disply to the wall ;-)
[19:41:17] <Loetmichel> http://www.cyrom.org/palbum/main.php?g2_itemId=11450 <- my mill is admittedly very small ;-)
[19:41:30] <Loetmichel> oh, you meant a display for a mpg?
[19:41:39] <Connor> yea.
[19:41:53] <willburrrr2003> have you considered the SeduinMega, Has lots of I/O and runs the atmega chip....
[19:42:07] <willburrrr2003> SeduinoMega*
[19:42:29] <Connor> willburrrr2003: Ye mean the ATmega644P Chip ? Yea..
[19:42:53] <Connor> I have a few of those..too... I was just using the 328 on my breadboard.
[19:43:04] <willburrrr2003> I think it is the 644
[19:43:11] <Connor> It is.
[19:43:57] <Connor> but, using the expander chip gave me opportunity to learn how those work and use one.
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[19:45:17] <willburrrr2003> here is the seeeduino info from their page
[19:45:21] <willburrrr2003> Features
[19:45:21] <willburrrr2003> ATmega 1280 @ 16MHz
[19:45:21] <willburrrr2003> Selectable 5V/3.3V operation
[19:45:21] <willburrrr2003> 70 Digital IO
[19:45:21] <willburrrr2003> 16 Analog inputs
[19:45:21] <willburrrr2003> 14 PWM outputs
[19:45:21] <willburrrr2003> 4 Hardware serial ports (UART)
[19:45:22] <willburrrr2003> Compatible with most Arduino Duemilanove and Diecimila Shields
[19:45:22] <willburrrr2003> Small form factor, 30% smaller than Arduino Mega
[19:45:23] <willburrrr2003> Easy to program, no additional hardware is required to load firmware just plug to a USB port and youre good to go.
[19:45:23] <willburrrr2003> ICSP Header
[19:45:24] <willburrrr2003> Can be powered through a battery or through a AC to DC adaptor
[19:45:51] <Connor> oh 1280.. naa.. over kill.
[19:45:53] <willburrrr2003> but I like your thinking on learning the new components :D
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[19:46:26] <willburrrr2003> how hard is it to interface a pendant into emc?
[19:48:19] <Connor> Depends. Straight MPG pendant is all hardware for the most part, but requires allot of free inputs on a parport.
[19:48:40] <Connor> My setup will require 2 pins of I/O on parport + usb
[19:51:58] <willburrrr2003> ok, that makes sense :) , I would have to add more I/O to do either funtion on my system
[19:52:58] <Connor> I played around with USB only. It worked.. but, you dropped ticks, so the digits on the dial would be meaningless.
[19:53:15] <Connor> would work okay for buttons only or maybe a analog joystick.
[19:55:01] <willburrrr2003> god to know once my machine advances that far, I was happy just performing my first basic facing op yesterday hehe The more I do to it, the more I want to do to it :D it seems kind of addictive
[19:55:08] <willburrrr2003> good*
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[20:19:36] <skunkworks_> logger[mah]:
[20:19:37] <logger[mah]> skunkworks_: Log stored at http://emc.mah.priv.at/irc/%23emc/2011-05-16.html
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[20:41:38] <syyl> ah
[20:41:43] <syyl> almost finished the design of my 4th axis :D
[20:41:52] <syyl> http://dl.dropbox.com/u/24396704/rundachse_1.jpg
[20:43:11] <syyl> http://dl.dropbox.com/u/24396704/rundachse_5.jpg
[20:44:41] <willburrrr2003> Sweet looking design syyl :D
[20:48:02] <archivist> syyl, not taper rollers? so there is less bending force on the shaft
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[20:48:33] <syyl> the bearing on the back is a tapered roller bearing
[20:48:52] <syyl> on the front i decided for a combination of axial/radial
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[20:49:19] <syyl> as i can move the bearing closer to the face plate
[20:49:35] <syyl> and hope to get more rigidity
[20:49:53] <syyl> btw, that thing is quite small
[20:50:00] <archivist> taper would be more rigidity I think
[20:50:04] <syyl> the face plate is only 80mm in diameter
[20:50:24] <skunkworks_> I would also think you could get the taper roller just as close...
[20:51:18] <syyl> *pulls out the bearing catalogue*
[20:51:25] <skunkworks_> heh
[20:51:43] <syyl> i think i have to sleep over that once again :D
[20:52:48] <skunkworks_> archivist: we ended up getting one of these... http://www.electronicsam.com/images/KandT/probe/DSCF1507%5b1%5d.jpg
[20:52:53] <archivist> I started making one but got lazy and continue to use cheap rotaries
[20:53:30] <archivist> skunkworks, I saw that the other day, similar size to the one here
[20:55:23] <skunkworks_> I think it will work ok.
[20:55:41] <skunkworks_> have not actually hooked it up yet. Too much yard work ;)
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[21:01:21] <tsingi> Loetmichel: What do you think of those flat keyboards?
[21:01:26] <tsingi> Any good?
[21:17:59] <archivist> syyl, I have one other comment, is that a stepper or servos driving it
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[21:18:16] <syyl> stepper
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[21:18:25] <archivist> syyl, what id the pink part between drive and spindle
[21:18:30] <archivist> id/is
[21:18:37] <syyl> a 1:50 harmonic drive :)
[21:19:10] <archivist> ah ok, stops reverse drive :)
[21:19:20] <syyl> :)
[21:19:22] <syyl> jep
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[21:20:33] <archivist> I would like to play with a couple of those one day
[21:20:59] <syyl> got it relatively cheap on ebay
[21:21:22] <syyl> ebay thailand...
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[21:22:41] <archivist> I have a morse taper in my rotaries which helps for some of my work
[21:23:06] <syyl> would be nice, yeah
[21:23:14] <syyl> but there is no place for a draw bar
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[21:24:18] <syyl> the hole thru the drive train, to the back, is for a long shaft, to drive a rotary encoder
[21:24:39] <syyl> want to go for closed loop :)
[21:24:45] <archivist> you can get front clamped collets
[21:24:50] <syyl> yeah
[21:24:55] <syyl> ER-type
[21:25:09] <syyl> with a flange type collet chuck
[21:26:20] <archivist> I have one of those
[21:27:02] <syyl> I need one for the lathe, anyway
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[21:27:19] <syyl> collets are allready there, for the milling machine
[21:31:34] <tsingi> Is there somewhere to go to search emc setup files? I have a Gecko G540 here, I don't see it in the list.
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[21:34:51] <JT-Shop> you can use the stepconf wizard
[21:35:42] <tsingi> Where do I find that?
[21:35:57] <tsingi> ah, ok
[21:35:58] <JT-Shop> on the CNC menu
[21:36:18] <JT-Shop> assuming you have installed EMC with the liveCD
[21:36:53] <tsingi> It's not on the CNC menu, but it runs from the comand like OK.
[21:37:04] <tsingi> And I did as you say.
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[21:37:32] <tsingi> Ahh, it's listed there!
[21:42:59] <syyl> goodnight!
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[21:46:36] <tsingi> JT-Shop: dude, this is awesome, I have working steppers!
[21:46:56] <tsingi> Oh, they're so cute.
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[21:51:00] <JT-Shop> lol
[21:51:19] * JT-Shop goes out to mow the 18" tall grass
[21:53:46] <tsingi> Get a goat, heh.
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[21:55:30] <elmo40> bail it
[21:55:39] <elmo40> and use the bails for your next work shop ;)
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[22:01:31] <bzzzz> Tom_itx: any luck with the jtag wiggler?
[22:02:39] <Tom_itx> no
[22:02:44] <Tom_itx> i really didn't look for one yet
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[22:04:01] <Tom_itx> i've got an old dev board that would probably work as one
[22:05:40] <Tom_itx> another guy wrote it right into his fpga so all he had was the connections to the pc
[22:06:15] <Tom_itx> that's sort of a chicken/egg thing though
[22:07:52] <elmo40> I like chicken.
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[22:20:11] <elmo40> why would microsoft buy skype?
[22:21:58] <Jymmm> elmo40: to get into the telecom game easily
[22:22:27] <elmo40> buy a VoIP box. start your own. simple enough
[22:22:31] <elmo40> use Asterix :P
[22:22:41] <Tom_itx> either to own it or to kill it
[22:22:48] <archivist> to lose more money than the last owner
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[22:33:09] <elmo40> skype and facebook would have been amazing
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[22:45:06] <Jymmm> elmo40: asterisk makes a telecom infrastructure not.
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[23:07:30] <ssi> gotta figure out how to make closed loop spindle speed work
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[23:23:15] <Valen> Jymmm: wassup with asterisk?
[23:23:29] <Valen> other than being fickle
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[23:31:36] <Jymmm> Valen: Just trying to explain to elmo40 that just having asterisk or VoIP setup, doens't provide the CLEC infrastructure
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[23:46:01] <Valen> could do
[23:46:49] <Valen> if my understanding of "clec" is correct
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[23:51:08] <Tom_L> in hal configuration, you can't see values update right?
[23:51:30] <Tom_L> where would i view something like a counter i want to monitor?
[23:52:04] <ve7it> Jymmm,
[23:55:08] <PCW> halmeter
[23:56:05] <Tom_L> thanx
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[23:56:35] <Tom_L> mpg works
[23:56:50] <JT-Shop> YEA!
[23:57:12] <Tom_L> now to get the axis switches made
[23:57:42] <Tom_L> oh, that's with the pullups