#linuxcnc | Logs for 2012-10-31

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[02:29:21] <Loetmichel> mornin'
[03:01:53] <DJ9DJ> moin
[07:24:20] <r00t4rd3d> http://i.imgur.com/7E1eM.jpg
[07:24:23] <r00t4rd3d> nes in nes
[07:38:06] <jthornton> anyone proficient on converting either a eps or svg to png, I'm not having any luck with imagemagic
[07:42:24] <mazafaka> inkscape or gimp maybe
[07:42:54] <mazafaka> i don't quite know, svg seems to be a vector graphics
[07:44:32] <jthornton> trying inkscape now
[07:45:52] <jthornton> inkscape cuts the image off
[07:56:31] <jthornton> getting closer http://imagebin.org/234019
[08:01:22] <alex_joni> morning jthornton
[08:01:41] <jthornton> morning alex_joni
[08:02:12] <r00t4rd3d> i can convert eps to dxf
[08:02:28] <alex_joni> jthornton: I saw you were looking for the faq link?
[08:02:52] <jthornton> yes it seems to have faded away
[08:03:05] <alex_joni> yup, I think joomla removed it
[08:03:05] <jthornton> found it in old. but seems outdated too
[08:03:24] <alex_joni> and I didn't see a real point to keeping it around
[08:03:30] <jthornton> I just removed the link
[08:03:34] <jthornton> me neither
[08:03:38] <alex_joni> we could install a component for that, but I think just removing it is better
[08:03:43] <jthornton> I was just fixing broken links
[08:04:43] <alex_joni> cool, glad to hear it
[08:09:35] <jthornton> the new tag on the forum seems to get confused
[08:33:50] <jthornton> http://imagebin.org/234024
[08:34:59] <Theta9> that thing looks awesome
[08:35:35] <jthornton> thanks, I'm getting there
[08:35:56] <Theta9> what language?
[08:36:09] <jthornton> python gtk glade sqlite
[08:36:24] <Theta9> sweet
[08:37:33] <jthornton> when you enter in a new value for measure over wires it calculates the pitch diameter
[08:37:59] <jthornton> if you don't have the Flynn thread wires you can change the thread wire dia too
[08:38:34] <jthornton> I'm still pondering how to handle the metric taps
[08:38:49] <alex_joni> jthornton: what tag?
[08:39:48] <jthornton> the one that shows new posts like (1 NEW)
[09:05:37] <alex_joni> jthornton: you need to be logged in for those
[09:06:04] <alex_joni> they seem to be working for me I guess
[09:07:18] <jthornton> what I see is new tags for threads that are not new and I was the last one to reply often
[09:09:59] <alex_joni> ah, hmm
[09:10:48] <alex_joni> and if you click the tag, it takes you to your own messages?
[09:11:58] <jthornton> yes the last tag does that
[09:12:14] <jthornton> I even looked to see if someone had modified a message and nope
[09:17:00] <jthornton> r00t4rd3d, do you think eps to dxf to png is possible?
[09:18:30] <r00t4rd3d> maybe, link the file
[09:18:42] <r00t4rd3d> i might be able to do eps to png
[09:21:13] <cncbasher> jthornton:gimp should convert svg
[09:21:17] <jthornton> http://git.linuxcnc.org/gitweb?p=linuxcnc.git;a=blob;f=docs/src/hal/images/stepgen-type2-4.eps;h=3f9a6e4d53a4fd06e980b22e3f4ee1e8449845b7;hb=refs/heads/v2.5_branch
[09:21:29] <jthornton> it does but the quality sucks
[09:21:44] <cncbasher> arh
[09:25:51] <r00t4rd3d> that looks all messed up
[09:26:28] <jthornton> want the svg?
[09:26:47] <r00t4rd3d> I dont think i can make it a png
[09:28:33] <r00t4rd3d> everything but
[09:29:46] <r00t4rd3d> none of the lines are straight in that though
[09:30:06] <r00t4rd3d> looks like spaghetti
[09:30:35] <jthornton> http://linuxcnc.org/docs/html/hal/rtcomps.html#_step_types_a_id_sub_stepgen_step_types_a
[09:30:52] <jthornton> should look like step type 2-4
[09:31:37] <r00t4rd3d> i can just screen shot that page and make it a png
[09:31:57] <r00t4rd3d> you just want the graphic ?
[09:32:00] <jthornton> that is a png and there is a mistook on it
[09:32:20] <jthornton> the eps and svg is correct but the png is not and that is what the docs use
[09:35:24] <r00t4rd3d> http://i.imgur.com/E9dqG.png
[09:36:03] <jthornton> yep that is the png as it is now
[09:37:00] <jthornton> http://imagebin.org/234032
[09:39:37] <jthornton> ugh dumb guy I am the dxf is there too
[09:40:08] <jdh> does anyone have flynn wires?
[09:40:15] <jthornton> I do
[09:41:09] <jdh> cool. I didn't know they existed :)
[09:41:10] <jthornton> anyone want to give the Machine Shop Calculator a whirl?
[09:41:26] <jthornton> yea you can get them from anywhere
[10:03:29] <r00t4rd3d> http://i.imgur.com/qr7yX.jpg
[10:03:37] <r00t4rd3d> arduino bumper im gonna cut
[10:42:00] <jdh> I need one for my Pi
[11:10:58] <r00t4rd3d> find a mechanical drawing of one and import it into aspire and trace it
[11:11:19] <jdh> cut2d is simpler for that
[11:11:52] <r00t4rd3d> aspire is cut2d
[11:12:08] <skunkworks> http://electronicsam.com/images/KandT/wrench.JPG
[11:12:10] <jdh> simpler
[11:12:23] <r00t4rd3d> less tools and tool paths
[11:12:35] <skunkworks> http://electronicsam.com/images/KandT/wrenchscale.JPG
[11:16:12] <cpresser> skunkworks: nice. but i am wondering, the 'open' part of the wrench.. how can you fit that on a nut. since only 1/6th you cant 'slide' it on a bolt!?
[11:18:15] <cradek> how did you do the sharp inside corners?
[11:42:19] <skunkworks> cradek: probably a file... (iirc it was done with a 1/4" mill)
[11:42:50] <cradek> heh that works
[11:43:06] <cradek> WE NEED A MILLION DOLLAR EDM MACHINE no wait I have a file
[11:43:19] <skunkworks> these are probably 15 years old or more. One of the first thing we made on the big machine ;)
[11:43:32] <skunkworks> wow maybe 20 years
[11:46:51] <archivist> should I cnc my filing machine? (which I have never used)
[11:50:55] <skunkworks> cpresser, if you look at the picture where the wrench is on the collet - you can see that the nut is quite a bit bigger than the biggest collet diameter/
[12:36:05] <yoyoek1> hi
[12:36:56] <skunkworks> hi
[12:37:02] <jdh> hi
[12:37:48] <yoyoek1> honor report: mgcodegenerator update :)
[12:40:10] <skunkworks> Oh - I recognize the name from cnczone!
[12:40:52] <yoyoek1> :) I am pleased to hear that
[12:42:52] <skunkworks> http://www.cnczone.com/forums/opensource_software/95964-blender_gcode_mgcodegenerator.html
[12:54:12] <andypugh> Isn't MattyMatt Using Blender?
[13:07:52] <L84Supper> andypugh, did you decide on your serial resolver data transfer scheme?
[13:08:28] <andypugh> I spotted significant problems that made that level of optimisation pointless
[13:09:05] <L84Supper> problem solved :)
[13:09:50] <yoyoek1> Ok time to get drunk. Have fun with the new version!
[13:09:54] <yoyoek1> cu
[13:32:53] <skunkworks> in case that was too vauge... http://wiki.linuxcnc.org/cgi-bin/wiki.pl?GcodeGenerator
[13:49:21] <ilias> good evening
[13:52:04] <ilias> i need some help
[13:52:25] <ilias> mainly h/w help
[13:52:49] <andypugh> Ask away.
[13:52:55] <andypugh> We exist to serve.
[13:52:56] <ilias> using a 7i77 board
[13:53:05] <ilias> :)
[13:53:18] <IchGuckLive> happy halloween B)
[13:53:26] <andypugh> OK. I did once see a 7i77 board.
[13:53:33] <ilias> when I enable the drive and the output is zero the motor is moving
[13:53:59] <andypugh> Velocity servo drive?
[13:54:41] <ilias> it's not 7i77's problem, because when I disconnect the analog out, that is the drive does not get any signal at all, the motor is still moving
[13:54:47] <ilias> yes velocity
[13:55:11] <andypugh> You need to "null out" the drive. There is probably an adjustment somewhere.
[13:55:53] <IchGuckLive> ilias: Drive type manafacture ?
[13:56:19] <pcw_home> Yes you can zero this at the drive. but normally the drive should not be enabled until the LInuxCNC/PID loop is operating
[13:56:30] <ilias> sorry for that...
[13:56:56] <IchGuckLive> ilias: Drive type manafacture ?
[13:57:12] <pcw_home> (zeroing is always good anyway so your PID loop is not "fixing" it)
[13:58:22] <andypugh> I am alomost missing my spammer-killing hobby.
[13:58:26] <ilias> well "nulling out" the drive is interesting, I concidered the drive to be setted up, because it was working with a different controller
[13:58:49] <pcw_home> how fast does it drift?
[13:58:58] <andypugh> The old controller might have had a zero offset all of its own
[13:59:25] <ilias> AB oss 2000 it's an old one
[13:59:38] <ilias> allen bradley under the brand of osai
[14:00:25] <pcw_home> in any case this is good to null out, but once properly setup you should never see this behavior
[14:00:27] <pcw_home> since the drives would not normally be enabled if the PID loop is not controlling them
[14:00:27] <ilias> andy, giving a value for the bias parameter doesn't change anything though
[14:00:51] <ilias> true
[14:01:29] <pcw_home> thats not where this needs to be nulled, its the drive itself
[14:01:52] <ilias> yes, i see, I'm just mentioning it
[14:01:53] <pcw_home> if its an old enough drive it will have a potentiometer
[14:02:52] <ilias> any other ideas? i will try nulling out, but are there any other ideas handy, in case nulling out doesn't work
[14:03:13] <pcw_home> ignore it and get your drive enables working
[14:03:38] <ilias> did that
[14:04:05] <ilias> but linking the feedback to axis, gives me following error,
[14:04:41] <pcw_home> well thats expected unless you have tuned the PID loop
[14:04:53] <ilias> unlinking it from axis, the pid is constantly trying to stabilize the system
[14:06:07] <ilias> because when the output is zero and the drive is moving, i.e. feedback changes, an error is produced which has to be corrected
[14:06:47] <pcw_home> sure so it cannot drift if the PID loop is close
[14:06:56] <pcw_home> closed
[14:09:04] <pcw_home> Thats why I'm saying (and assuming this is a slow drift)
[14:09:06] <pcw_home> You should never see this drift normally (and all velocity mode servos drift a little)
[14:09:30] <ilias> yes but this way i need to write extra code for the pid loop to be turned off after some time of error constantly within the deadband
[14:10:19] <pcw_home> No not true at all
[14:10:34] <ilias> how's that?
[14:11:13] <pcw_home> have you tuned you PID loop? If not, following errors are expected
[14:11:56] <pcw_home> and a slow drift is irrelevant
[14:12:52] <pcw_home> for tuning you will need to set you ferror and min ferror to a fair size (say 1 inch or 25 mm)
[14:13:07] <ilias> no not yet, i concentrated on eliminating this problem
[14:13:23] <pcw_home> its unimportant
[14:13:50] <ilias> ok
[14:14:34] <ilias> so should ferror be larger than the deadband?
[14:15:28] <pcw_home> ferror needs to be huge to accomplish tuning (and deadband should be 0)
[14:16:23] <ilias> that's correct!
[14:16:44] <ilias> that's seems to be the way to go, yes you are right
[14:16:46] <pcw_home> first thing for safety is to make sure the drives are not enabled until linuxCNC machine on
[14:16:48] <pcw_home> and are disabled by a ferror
[14:17:27] <pcw_home> then a 1 inch or 25 mm ferror allows tuning but will stop a runaway
[14:17:49] <ilias> yes this is currently the case
[14:18:05] <ilias> and 25mm seems a good number to go
[14:19:26] <ilias> it seems that there is something that I am not getting right though
[14:19:29] <pcw_home> JT has a simple one page guide on tuning velocity loops dont know if he's around or not
[14:19:42] <ilias> how is it possible to have 0 deadband?
[14:20:19] <jthornton> http://gnipsel.com/linuxcnc/tuning/servo.html
[14:20:59] <ilias> thanks a lot JT
[14:21:10] <IchGuckLive> Question to the USA world series parade what is that for on halloween
[14:21:48] <pcw_home> deadband is mainly for eliminating 1-2 count dither, mainly to lower acoustical noise
[14:21:50] <pcw_home> in the grand scheme of things its not important (and is best set to 0 for initial tuning)
[14:23:56] <ilias> yes but in my case I guess it can't be accomplished since even if it arrives to the desired position, the motor will continue moving
[14:24:15] <ilias> even id pid.output is 0
[14:24:32] <ilias> even if
[14:26:08] <ilias> anyway, thanks for your help, I'll try all the above and if I still have problems, I know where to ask forhelp
[14:27:53] <IchGuckLive> best to reset the driver to a factory default as AB oasics do
[14:30:26] <pcw_home> No the motor will stop (the PID output will be set so the motor stops)
[14:30:57] <ilias> I hope so
[14:31:15] <pcw_home> Thats the PID loops job
[14:32:47] <pcw_home> but adjust the drive if it bothers you...
[14:35:38] <ilias> ok... thank you very much pcw... I will give feedback on my progress soon.
[14:35:56] <ilias> thank you all for your time
[14:36:13] <ilias> bye
[14:36:52] <r00t4rd3d> http://www.codeweavers.com/
[14:36:59] <r00t4rd3d> crossover is free for 12 months
[16:32:30] <MattyMatt> I forked mgcodegenerator
[16:33:43] <MattyMatt> I wrote to yoyoek but he never replied
[16:33:53] <MattyMatt> hope he comes back
[16:34:27] <MattyMatt> I did some nifty gui mods
[16:35:08] <MattyMatt> I guess I should put it on the wiki
[16:38:27] <MattyMatt> I did all toolpaths as blender curves in my bit, so they could support arcs and show as a different colour
[16:39:07] <MattyMatt> also blender can track animations to curves easily (as easy as anything in blender anyway)
[16:41:13] <MattyMatt> I stopped using the script tho. the gcode it made was too verbose compared to handwritten
[16:42:12] <MattyMatt> for my simple geometric jobs at least
[17:05:14] <andypugh> I thought you were carving figurines?
[17:05:30] <andypugh> Or is it all Mendel parts?
[17:29:11] <DJ9DJ> gn8
[18:14:07] <Valen> So I'm planning a new router
[18:14:28] <Valen> and I'm tossing up between gecko 320's and mesa 7i29's for drive
[18:14:40] <Valen> any comments?
[18:15:41] <andypugh> I think the 7i29 works out cheaper for 4 axes and less cheap for 3?
[18:16:10] <Valen> geckos are ~$100 each, 7i29 is $600 for a pair
[18:16:43] <Valen> the geckos look like steppers to emc dont they?
[18:17:34] <Valen> I would like to put size 34 servos on from http://www.kelinginc.net/ServoMotors.html but I cant find any drivers that will do 40A
[18:21:35] <andypugh> http://www.linuxcnc.org/index.php/forum/30-cnc-machines/25790-cincinatti-arrow-500-retrofit-questions?start=6&lang=english#26027 might be worth a look.
[18:22:05] <andypugh> The drives plug directly in to mains power.
[18:22:46] <Valen> do keep in mind we are in 240V land
[18:23:08] <andypugh> 240 or 230?
[18:23:30] <Valen> well its 230+10-2% or something like that
[18:23:42] <Valen> but if you stick a meeter in the wall its 240 lol
[18:24:13] <andypugh> (You might have to ask specifically, the drives say 110 - 230VAC)
[18:24:44] <andypugh> +/- 5%
[18:25:07] <andypugh> So 241.5V
[18:25:30] <Valen> if its being hooked to mains it should be fairly tollerent
[18:25:37] <Valen> but its a good point
[18:26:05] <Valen> thats a pretty spendy servo drive, in comparison to the mesa or gecko offerings
[18:26:23] <Valen> cheap compared to a fanuc of course
[18:26:39] <Valen> also needs an ac servo motor
[18:27:05] <andypugh> Well, quite. $550 for the drive and motor is a good price for a 750W brushless.
[18:27:34] <Valen> thats true
[18:27:34] <Valen> but still more than the budget
[18:27:40] <Valen> isn't mesas brushless in that range?
[18:28:08] <andypugh> $275 for the 8i20. But what motor are you going to use?
[18:28:18] <Valen> phat hobby brushless?
[18:28:35] <andypugh> + encoder + Halls?
[18:28:53] <andypugh> Don't get me wrong, I like the 8i20. I have 3
[18:29:40] <Valen> all too spendy though
[18:30:14] <andypugh> Yo need to add an encoder to the Keling I think.
[18:30:44] <Valen> I was looking at http://www.kelinginc.net/CNC23ServoMotorPackage.html
[18:31:41] <andypugh> I thought you wanted bigger motors?
[18:32:09] <Valen> I would *like* bigger motors, but i dont want to *pay* for them
[18:33:04] <andypugh> 1180 all-in for the Keling, 1650 all-in for the dmm-tech
[18:33:16] <Valen> hmm
[18:33:28] <Valen> 7i29's was about 1650
[18:34:57] <Valen> interesting
[18:34:58] <andypugh> dmm-tech is an unknown quantity with LinuxCNC, but they seemed to think it ought to work.
[18:35:03] <Valen> phone one sec
[18:35:23] <andypugh> (it is a conventional +/-10V + encoder setup)
[18:36:53] <Valen> would need to get a +-10v converter too
[18:39:52] <andypugh> I guess you were going to use a Mesa card?
[18:39:57] <Valen> yeah
[18:41:17] <andypugh> The cheapest that fits the 7i29 is the 5i20 at $200. For the same price you can have the 5i25 / 7i77 combo with several +/- 10V and encoder channels.
[18:41:36] <Valen> 5i23 is a given
[18:42:07] <andypugh> Any particular reason?
[18:44:10] <Valen> i like em lol
[18:44:31] <Valen> i also figured for $30 extra might as well get the biggest card no?
[18:44:38] <Valen> back off the phone now
[18:44:58] <Valen> I need 4 axis btw, doing a gantry system
[18:46:15] <andypugh> 7i77 has 6 sets of servo drive pins. And you don't need any sort of BoB
[18:46:39] <Valen> so that 750W one comes to 2240 plus 159 so $2400
[18:47:22] <andypugh> 159?
[18:47:23] <Valen> does that dyn3 feed back position
[18:47:27] <Valen> the ti77
[18:47:33] <Valen> 7i77
[18:47:51] <andypugh> You can't use the 7i77 with the 5i23.
[18:48:29] <Valen> oh, i never used a 25 pin anything io
[18:48:42] <andypugh> (They have 50 pins really)
[18:49:05] <Valen> whats the difference bewteen the 5i20 and the 5i23 then?
[18:49:25] <Valen> ahh nvm
[18:49:28] <Valen> misread
[18:49:31] <andypugh> And a lot of the functions are serially controlled, so don't use as many pins as you might expect.
[18:49:59] <andypugh> 5i20 has a smaller FPGA than 5i23
[18:50:01] <Valen> so a 5i25 you suggest
[18:50:15] <andypugh> I don't suggest anything :-)
[18:50:16] <Valen> that takes ~$100 off the price
[18:50:33] <Valen> you do know IRC is a legally binding form of communication right? ;->
[18:50:39] <andypugh> 5i25 + 7i77 comes as a pair for $239
[18:51:09] <Valen> thing is I had been planning on using a 5i23 so I had been excluding that from my pricing
[18:51:13] <andypugh> So, same price as a 5i23, but no need for adapter boards.
[18:51:58] <Valen> the options I had in mind were this, $650 size 23 steppers with everything needed to run
[18:52:06] <Valen> $1200 servos with gecko drives
[18:52:14] <Valen> $1600 same servos with mesa drives
[18:52:47] <andypugh> For reference, the dmm AC servos have the same peak torque as the Keling NEMA 34 brush servo, but twice the rated torque.
[18:53:07] <Valen> this paticular application is a wood router
[18:53:17] <Valen> with delusions of Al and similar
[18:53:22] <Valen> 1.2M to a side
[18:53:37] <andypugh> I think 23 steppers will be a little slow for the travels.
[18:54:00] <Valen> that was my opinion too, the "client" (my dad) likes servo systems too
[18:54:07] <andypugh> (geared down far enough they can handle the cuttinf forces, my mini-mill cuts steel with NEMA 23 steppers)
[18:54:29] <Valen> I worked out that with the servo on a 5:1 ratio it will hit 4000mm/minute which is the speed he said he wanted
[18:54:43] <Valen> running the servos at 60V or so
[18:55:54] <Valen> the rated speed on the dmm is 3000 vs the kelig at 4000
[18:56:02] <Valen> 4600 or something rather
[19:01:56] <andypugh> Max speed of dmm is 6000
[19:02:26] <andypugh> But as a stepper runs out of puff at about 300rpm it's fairly moot.
[19:03:10] <andypugh> I have no experience of any of the combos being discussed.
[19:04:59] <Valen> I'm leaning away from that dmm one
[19:05:15] <Valen> it looks like its higher power, but not higher peak torque
[19:05:35] <Valen> and with the way we use the servos I'm not sure we would use that much power as much as the torque
[19:05:42] <Valen> also I really dislike analog stuff
[19:07:09] <andypugh> They have step/dir drives and servos (cheaper, too) equivalent to the Gecko. But no encoder feedback.
[19:07:43] <andypugh> You can run the step/dir geckos with velocity-mode stepgens to get something equivalent to a velocity-control drive.
[19:08:26] <Valen> Personally I'm keener on the mesa chain, it just "feels" better, theres only one loop yaknow
[19:08:49] <Valen> but people seem to like servo controllers outside EMC
[19:09:03] <andypugh> I feel about brush motors the way you feel about analogue :-)
[19:09:19] <Valen> don't misunderstand, I would like brushless too
[19:09:24] <Valen> but it just costs more
[19:09:43] <andypugh> Any Aussie sources?
[19:09:50] <Valen> lol
[19:10:19] <Valen> if one did exist it would probably be cheaper/faster to make it from magnets and wire
[19:10:36] <andypugh> Bosch used to make some pretty serious 24V 750W motors, they were the tool of choice for Robotwars.
[19:10:58] <Valen> yeah, we are using 500W scooter motors on our current mill
[19:11:00] <Valen> 1:1 drive
[19:11:18] <Valen> with some "modified" 200W mesa drives
[19:11:25] <Valen> IE defeating the current limit lol
[19:11:30] <Theta9> 24v scooter motors?
[19:11:40] <Valen> i think 24 yes
[19:11:54] <Valen> the problem is the shaft is so tiny we cant put an encoder on it
[19:12:05] <Valen> (doesn't bother the current mill, it uses glass scales)
[19:13:40] <Theta9> dang allelectronics is finally out of those big ass 24v scooter motors
[19:14:04] <Theta9> Valen, why not drill/tap a hole in the shaft?
[19:14:13] <Valen> to what end?
[19:14:24] <Theta9> attach the encoder?
[19:14:42] <Valen> the end of the shaft is inside the ballscrew
[19:14:51] <Valen> the shaft is like 8mm long
[19:16:17] <Valen> the shaft also doesn't come out the back end
[19:16:39] <Theta9> that's what i meant... attach to the bag with a hole in the shaft
[19:16:45] <Theta9> s/bag/back/
[19:16:59] <Valen> the shaft is buried inside the motor
[19:17:17] <Theta9> dang
[19:17:33] <Valen> http://secure.oatleyelectronics.com//product_info.php?cPath=53&products_id=667&osCsid=4daaea9f72b61b86c6453e9ebc26eac4
[19:17:36] <Valen> is what we have
[19:18:39] <Theta9> that thing is huge!
[19:19:01] <Theta9> mine look very similar in style, minus the mounting bracket, and about 3/4 the size
[19:21:11] <Valen> it is pretty epic lol
[19:22:46] <Valen> andypugh: so what do you think, geckos or mesa with KL23-130-60 (NEMA23 from http://www.kelinginc.net/ServoMotors.html
[19:22:53] <Valen> or Theta9 for that matter
[19:22:57] <Valen> or anybody else
[19:24:25] <andypugh> Does the Keling package come in cheaper for the Geckos?
[19:24:47] <Valen> $1200 for a ready to run setup
[19:25:14] <Valen> http://www.kelinginc.net/CNC23ServoMotorPackage.html
[19:25:18] <andypugh> I don't really like step/dir servos, But I am sure that is just an aesthetic thing
[19:25:19] <L84Supper> Valen: do you really order from the midwest US to Australia?
[19:25:19] <Valen> kit 2
[19:25:31] <Valen> everything comes from overseas
[19:25:37] <Valen> australia makes nothing
[19:25:38] <L84Supper> keling has changed names
[19:25:56] <Valen> we also don't like step dir servos
[19:26:14] <L84Supper> he changed to http://www.automationtechnologiesinc.com/
[19:26:20] <L84Supper> same building
[19:26:22] <andypugh> Yeah, Valen, have you see the (much better) new Keling website?
[19:26:35] <Valen> as of 6 seconds ago yes
[19:27:38] <andypugh> http://www.automationtechnologiesinc.com/products-page/ac-servo-motors/ac-brushless-servo-motor-and-driver makes the DMM look like a good price
[19:27:39] <L84Supper> China --> Chicago --> Melbourne.... I'm just trying to see if I can't find you a shortcut
[19:27:49] <Valen> sydney but close enough
[19:28:08] <L84Supper> ah ok, I thought you were down south
[19:28:11] <Valen> I do have one group who buys chinese motors close by, but mobile stuff (drill motors)
[19:28:31] <Valen> don't get me wrong that dmm is a good price
[19:28:51] <Valen> for the second mill (steel milling 4/5 axis machine) i think I'll be going that way
[19:29:03] <andypugh> I want someone to guinea-pig them. And someone too far away to hit me seems ideal.
[19:29:08] <Valen> rofl
[19:29:26] <Valen> It wouldn't bother me too much to split the encoder feeds back to EMC as well as the servo drive
[19:30:11] <Valen> run the servo as a velocity controller
[19:32:02] <L84Supper> http://www.motionking.com/index.htm is where I think they come from
[19:32:39] <L84Supper> I'm going to visit them in a few weeks
[19:35:18] <L84Supper> the smaller steppers anyway
[19:35:57] <Valen> friggin awesome btw http://www.youtube.com/watch?feature=player_embedded&v=ffEYqGGYXRk
[19:36:15] <Valen> 2 guys in a helicopter rescue a RC plane from a tree
[19:36:26] <Valen> note a fair bit of language
[19:37:11] <Valen> L84Supper: i don't see any brushed servo motors there
[19:38:22] <L84Supper> http://www.stepper-dc-motor.com/products.html
[19:39:13] <L84Supper> Valen: DC brushed servo?
[19:39:34] <Valen> cheaper I was thinking
[19:45:15] <L84Supper> scooter and wheelchair motors just keep coming up all the time
[19:45:58] <Valen> they are all generally single shaft though
[19:47:03] <L84Supper> http://www.automationtechnologiesinc.com/products-page/kl-stepper-drivers I haven't tried these yet. Low priced
[19:49:14] <andypugh> Valen, did you see: http://www.automationtechnologiesinc.com/products-page/servo-nema34-kits/4-axis-nema34-850-oz-in-72v20a-psu-g320x-gecko-driver
[19:49:42] <Valen> yeah i looked at that one
[19:49:59] <Valen> but the motors are heavier, and the 20A gecko cant hit the peak torque anyway
[19:50:03] <L84Supper> the guy has nearly no overhead
[19:50:23] <andypugh> Nema 42 steppers!??
[19:51:07] <L84Supper> just ~5k sq ft of warehouse, no showroom
[19:53:05] <L84Supper> http://www.automationtechnologiesinc.com/career-opportunities he's hiring
[20:08:57] <teb_> good evening
[20:10:20] <teb_> being linuxcnc free and open, is there any "kind of library" with parts designs to make with using linuxcnc?
[20:10:49] <jdh> gcode is somewhat machine specific
[20:11:44] <teb_> that's the problem I'm having, this cnc machine I use at work uses very old files and I'd like to implement some new designs and make different parts
[20:12:18] <teb_> but this old files implement some words that are "propietary" to the controller software
[20:12:44] <jdh> reject proprietary opression and embrace the freedom that is LinuxCNC
[20:13:17] <jdh> (did that sound convincing)
[20:13:40] <L84Supper> doesn't heeks generate g-code?
[20:14:03] <teb_> I would like to use linuxCNC at home to design parts and make the G-code and tests, but I can't figure a way of getting it to work with the cnc machine using it's propietary controller software
[20:14:18] <jdh> what control does it use?
[20:14:29] <teb_> it's a brazilian one
[20:14:35] <teb_> i've got the manual right here lemme check
[20:14:44] <L84Supper> custom g-code?
[20:15:17] <teb_> I'd actually like to get free diesigns (maybe CAD files) and get them to linuxcnc, drive tests and then machine them
[20:15:29] <teb_> Numeric Controller MCS SX570
[20:15:36] <L84Supper> teb_, there are plenty of files around for free
[20:16:31] <L84Supper> teb_, you can design your own simple parts without too much work
[20:17:32] <teb_> I'm a total newb to everything related to CNC, a friend of mine has a factory and thanks to visiting him I got to learn some stuff.. Then I applied for a CNC Lathe Operation Job and I just got the job lol
[20:17:36] <teb_> Now I'm im trouble
[20:17:48] <teb_> haha AND very interested in learning
[20:18:05] <L84Supper> https://sites.google.com/site/heekscad/Details
[20:21:16] <teb_> thanks L8
[20:23:25] <teb_> L84Supper, do you know of a linux alternative for heekscad?
[20:24:18] <L84Supper> teb_, another open linux CAD application?
[20:24:34] <teb_> I just found a .exe link for the latest version of heekscad
[20:24:49] <L84Supper> there are linux packages
[20:24:55] <teb_> oh, thanks
[20:24:56] <L84Supper> what are you running?
[20:25:01] <teb_> Debian Squeeze
[20:26:10] <L84Supper> there's an Ubuntu package
[20:26:36] <L84Supper> can you compile from source? or do you need a package?
[20:26:52] <teb_> No problem with source compiling
[20:27:29] <L84Supper> http://code.google.com/p/heekscad/downloads/list
[20:29:22] <teb_> So what would be the best approach for starters design & cnc-testing of solid parts in the lathe machine?
[20:30:47] <mutilator> anyone etch glass? trying to find a good bit, all these diamond coated things are crap
[20:30:57] <mutilator> https://dl.dropbox.com/u/24715738/IMG_20121031_211029.jpg
[20:34:03] <teb_> L84Supper, do you know what steps should I follow to turn my cad design into a lathe-machined ZX toolpath? Is my resulting G-code going to be supported by the SX570 controller?
[20:35:45] <L84Supper> heh it's all in Portuguese!
[20:36:37] <teb_> Yes, and I speak spanish
[20:37:12] <teb_> I will have to become a garoto very soon
[20:37:20] <L84Supper> i don't know anything about that controller
[20:37:34] <teb_> Maybe I should try find an emulator
[20:38:45] <L84Supper> you can design parts and create g-code with heeks and then run it in simulation in Linuxcnc
[20:39:22] <teb_> Ah, that will be enough for starting :) thank ou L8
[20:39:53] <L84Supper> or even create some g-code manually and run it through simulation
[20:53:18] <Valen> L84Supper: where are you anyway?
[21:43:40] <r00t4rd3d> midwest
[21:45:10] <r00t4rd3d> 2009-05-30 01:42:09 L84Supper anyone have recommendations for a CNC shop in the midwest to mill some 6063 flat stock?
[21:45:32] <jdh> googlestalking?
[21:45:44] <r00t4rd3d> :D
[21:46:23] <r00t4rd3d> this place has more logs then the McDonalds bathroom
[21:47:31] <r00t4rd3d> google your username plus cnc
[21:48:00] <r00t4rd3d> well for you jdh its linuxcnc
[21:52:01] <L84Supper> r00t4rd3d, maybe somebody in here
[22:23:35] <r00t4rd3d> ?
[22:50:39] <Valen> what would a good acceleration for a CnC router be
[22:50:48] <Valen> think fairly intricate work
[22:50:56] <Valen> gears, and knicknacks
[23:51:08] <tjb1> Anyone know of a sheet metal machine that can handle a decent gauge?
[23:57:30] <tjb1> Someone buy this for me - http://www.southern-tool.com/store/Baileigh_SBR-5216.php