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[00:01:59] <elmo40> http://i.zdnet.com/gallery/6294472-182-280.jpg
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[01:39:34] <Tom_itx> setting up limit switches, you can use say a +X switch and specify the travel right?
[01:39:47] <Tom_itx> or do you need one on both ends of the travel?
[01:45:07] <SWPadnos> you can use 0, 1, or 2 limit switches per joint
[01:45:39] <Tom_itx> i thought so but figured i'd ask
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[02:07:05] <Tom_itx> SWPadnos, do you know what part of the help covers the limits?
[02:07:19] <SWPadnos> not offhand
[02:07:30] <SWPadnos> the integrators manual should have that kind of information
[02:11:05] <mikegg> http://unpy.net/emc2-docs-new/code_Code_Notes.html#sec:Homing
[02:12:46] <Tom_itx> thanks
[02:13:06] <Tom_itx> i see some of the "HOME_" stuff in the ini but it's commented out for now
[02:13:23] <jdhNC> there is a section on home and limits in the wiki
[02:14:48] <SWPadnos> a quick check of linuxcnc.org yields this:
http://www.linuxcnc.org/docview/html/config_ini_homing.html
[02:15:21] <SWPadnos> which has more or less the same information
[02:15:51] <SWPadnos> but homing isn't what you asked about, so nevermind
[02:16:40] <Tom_itx> well, it's part of what i'm doing so maybe it is
[02:17:17] <SWPadnos> http://wiki.linuxcnc.org/emcinfo.pl?Homing_And_Limit_Switch
[02:18:44] <Tom_itx> i know there are many ways to configure the limits and homing. i'll look it over
[02:22:39] <Tom_itx> i doubt something like this would change much using ver 2.5 or higher
[02:25:08] <Tom_itx> the 'HOME_USE_INDEX' would be for use with encoders with an index channel?
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[02:25:42] <mikegg> has anyone ever pushed the limits of a gecko drive? I know they're under-rated. I wonder how far past 80 VDC you can take them..
[02:26:08] <Tom_itx> chech the mosfets on them and see
[02:26:34] <Tom_itx> unless they hid the part numbers
[02:27:12] <mikegg> I think they are glued to the heat sink
[02:27:41] <mikegg> I was driving them around 90 volts. I dropped it down to 80 and now it's losing steps
[02:27:47] <Tom_itx> generally in electronics there's a 'safety margin' built in but i wouldn't wanna push it
[02:28:00] <mikegg> thinking about just driving them off the line
[02:28:19] <Tom_itx> depends how clean the line voltage is
[02:28:35] <SWPadnos> the MOSFETs will come apart at 113V or 115V (I don't remember which)
[02:29:11] <SWPadnos> that includes your nominal voltage, any ripple due to line variance, and any back EMF from slowing down
[02:29:16] <mikegg> no disassemble!
[02:29:32] <mikegg> ok
[02:29:42] <SWPadnos> the 80V rating is conservative, but not far off the mark when you consider all the factors
[02:29:43] <Tom_itx> back EMF can be double
[02:33:27] <mikegg> you can avoid losing steps by just slowing them down I guess?
[02:33:43] <SWPadnos> that's the generally accepted method
[02:34:28] <Tom_itx> not always that well accepted though :)
[02:34:37] <mikegg> how you been, SWPadnos, btw?
[02:34:45] <SWPadnos> busy
[02:34:53] <mikegg> are you guys planning another EMC2 fest anytime?
[02:35:06] <SWPadnos> not that I know of
[02:35:12] <mikegg> I was thinking it would be fun to get some t-shirts printed
[02:35:17] <SWPadnos> heh, yeah
[02:35:21] <SWPadnos> or lab smocks
[02:35:34] <mikegg> I was at a maker faire last weekend and a local hacker club had t-shirts
[02:35:37] <Tom_itx> i'd show if it were in town again
[02:35:49] <mikegg> pocket protectors?
[02:35:52] <mikegg> heh
[02:35:53] <Tom_itx> ick
[02:36:14] <mikegg> where is in town for you?
[02:36:19] <Tom_itx> wichita
[02:36:37] <Tom_itx> i understand they met over off West st once
[02:37:30] <mikegg> yeah, i was bummed I missed the last one. I was sitting on my ass that weekend. would have hopped on a plane in a minute
[02:37:53] <Tom_itx> it's only a couple miles from me :)
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[02:40:19] <Tom_itx> all i've got right now is a little sherline but i've messed with the big ones in the past
[02:46:59] <mikegg> I just mashed the battery for the makita in the charger. heard a crunch. mikegg - 1, cockroaches - 0
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[03:38:51] <FinboySlick> Does EMC run well in an uClibc environment?
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[06:34:51] <Loetmichel> moin
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[07:50:57] <nicko> I want:
http://cdn.trendhunterstatic.com/thumbs/hello-kitty-engine-oil.jpeg
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[08:56:12] <alex_joni> http://juve.ro/blog/projects/01315903136
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[09:05:41] <Valen> alex_joni: cool
[09:18:05] <awallin> here's some font-routing
http://www.youtube.com/watch?v=kuXAvzhZctg&feature=youtube_gdata somebody asked about producing g-code for that... it might be possible if the straight-skeleton ("middle") of the polygon is first computed, and then the bit is lowered intil it touches the edges..
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[15:15:52] <grommit> is anyone running a gantry style machine with two motors on one axis?
[15:16:20] <JT-Shop> lots of folks do
[15:16:37] <grommit> i meant anyone here who can answer some questions...
[15:16:50] <JT-Shop> just ask the question
[15:18:31] <grommit> how do I tie two axes together? I have a kinematics.hal file set up with gantrykins, and was using XYZA, but that didn't seem to work. Someone said I should use a 8 axis but only use XYZV (since V is linear - whereas A is not). So I set it up that way just now. But the problem is that only one of the two motors moves when I press my arrow key...
[15:22:41] <JT-Shop> what mode are you in?
[15:22:52] <JT-Shop> and in gantrykins you can set what two axis are together
[15:23:28] <grommit> in kinematics.hal I have:
[15:23:35] <grommit> # Settings for gantrykins
[15:23:37] <grommit> setp gantrykins.joint-0 0
[15:23:39] <grommit> setp gantrykins.joint-1 1
[15:23:40] <grommit> setp gantrykins.joint-2 2
[15:23:42] <grommit> setp gantrykins.joint-3 1
[15:23:45] <grommit> what do you mean "mode"?
[15:24:00] <JT-Shop> ok, that looks correct
[15:24:26] <JT-Shop> press the $ key I think to switch modes after you home
[15:26:46] <grommit> hmm, something is confused. I am going to reboot. back in a bit...
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[15:31:34] <grommit> same thing. It switched modes but only one of the two motors moves.
[15:33:45] <JT-Shop> do you have step and direction for each drive "connected" in hal?
[15:34:02] <JT-Shop> can you jog each motor in joint mode?
[15:34:07] <grommit> I can move the right motor by itself by using the '[' and ']' keys. And I can move the left motor by itself using up/down arrows
[15:34:36] <grommit> how do I connect step/dir in hal? I thought that was kinematics job
[15:36:05] <JT-Shop> this is the sample gantry config
http://git.linuxcnc.org/gitweb?p=emc2.git;a=blob;f=configs/gantry/gantry.ini;h=b836cefb963372bacc8478c4297976c2fa7b1798;hb=HEAD
[15:36:41] <JT-Shop> and gantry hal
http://git.linuxcnc.org/gitweb?p=emc2.git;a=blob;f=configs/gantry/gantry.hal;h=a1a64553cd3784bc92f60c4c4ce1eff150fbe023;hb=HEAD
[15:36:58] <grommit> thx, going off to see...
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[15:37:06] <JT-Shop> ok
[15:54:09] <Loetmichel> re @ home
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[16:04:55] <grommit> I don't see what could be missing...
[16:05:55] <grommit> My config is slightly different since I have encoders driving things, and I am (currently) trying 8 axes using X Y Z and V, but all of that stuff looks ok to me...
[16:07:19] <grommit> There is this line in the config you sent: addf stepgen.capture-position servo-thread
[16:07:39] <grommit> I don't have that in mine. But I am using Mesa cards to generate step/dir
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[16:22:41] <JT-Shop> yea it will be different for servos
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[16:24:00] <JT-Shop> logger[psha]: log
[16:24:17] <grommit> but I don't see anything glaringly wrong
[16:24:50] <grommit> my config are:
http://pastebin.com/F6ubUfTA and
http://pastebin.com/pzLHYKdr
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[16:34:38] <JT-Shop> JT-Shop you have steppers with encoders?
[16:34:38] <JT-Shop> I keep loosing my connection :/
[16:36:39] <grommit> no, I have servos with encoders. They are being driven by Geckos that want step/dir
[16:37:41] <JT-Shop> so the encoders are connected to the geckos?
[16:38:16] <grommit> Yes, Channel A,B are (Geckos don't use index), but they are also connected to EMC through the Mesa cards
[16:39:59] <Loetmichel> but one can make an [limit switch AND Index] circuid to enhance the position precision for reference ;-)
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[16:41:05] <grommit> emc can do that since index is fed to emc
[16:41:52] <Loetmichel> ok, even better
[16:42:14] <grommit> Yes, if I could just get it work :-)
[16:42:22] <JT-Shop> well your have wandered WAY past my level of guesspertice trying to use stepgen with feedback and beware it is not an easy path to walk down as many have found out in the past
[16:43:06] <JT-Shop> did you try a normal step and direction config?
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[16:43:20] * Loetmichel is a little distracted by his new toy: http://www.cyrom.org/palbum/main.php?g2_itemId=12322 http://www.cyrom.org/palbum/main.php?g2_itemId=12325
[16:43:48] <grommit> what is a "normal" step and dir config?
[16:43:56] <Loetmichel> but i dont have a mesa card so i am out of the game anyways
[16:44:29] <JT-Shop> normally step and direction configs don't use feedback of any type
[16:44:53] <JT-Shop> like the one I linked before
[16:46:04] <alex4nder> Loetmichel: that's an ear tablet.
[16:47:21] <grommit> I walk around with my laptop next to my head too ;-)
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[16:58:16] <Loetmichel> alex4nder; its a cross between a big phone and a small tablet ;-)
[17:01:24] <awallin> theyre just marketing the nokia N9 over here... 599eur and available in October..
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[17:05:03] * JT-Shop goes to have a lie down to get rid of the headache grommit gave him :)
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[17:11:19] * grommit goes to get lunch so he'll have energy to solve the problem JT-Shop wouldn't help him with ;-)
[17:12:09] <jthornton> wouldn't/couldn't
[17:12:37] <grommit> yes, that's what i meant
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[17:43:59] <skunkworks> grommit: how has the tuning gone?
[17:45:35] <mhaberler> psha:
http://mah.priv.at/gallery2/main.php?g2_view=core.DownloadItem&g2_itemId=91745
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[19:15:22] <psha> mhaberler: wow, nice :)
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[19:27:38] <JT-Shop> logger[psha]: log
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[20:01:25] <frysteev> anyone know if resolvers are more sensitve to HF interference then encoders?
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[20:10:51] <JT-Shop> less sensitive AFAIK
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[20:14:55] <jdhNC> Hi there.
[20:24:30] jdhNC is now known as
jdh
[20:24:37] jdh is now known as
jdhNC
[20:26:44] <grommit> what is position_scale? I can't find it in the manuals...
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[20:37:10] <archivist> grommit, a google search finds a few mentions
[20:37:55] <archivist> I put position_scale linuxcnc in googles search box
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[20:44:30] <JT-Shop> grommit: for hostmot2?
[20:46:10] <JT-Shop> grommit: >>
http://www.linuxcnc.org/docview/html/drivers_hostmot2.html#r1_13
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[21:30:33] <grommit> skunkworks: tuning went fine, and I made some progress. However, I went to enable the Y axis (two motors) and am having problems. I got it working now, but probably am misunderstanding some of the config
[21:31:14] <grommit> It works in joint mode but doesn't follow it's accel settings in world mode and immediately faults if I am moving other than really slow
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[21:40:29] <grommit> Anyone familiar with using gantrykins with 8 axis but using X,Y,Z,V (for two motors on Y axis)?
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[22:26:00] * JT-Shop calculates the odds of that at 234,987,111.3 to 1
[22:27:37] <andypugh> Que?
[22:29:21] <JT-Shop> Hi Andy!
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[22:35:34] <andypugh> Don't you hate it when you get back to this window, see a question you can help with, but they ahve loged off because it has been 40 minutes?
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[22:36:09] <Tom_itx> i've had some leave 20 sec after they ask. don't feel bad
[22:36:54] <andypugh> 20s is their fault. 40 minutes is, well, reasonable.
[22:39:17] <Tom_itx> look at it like this. you go ahead and answer it and he will rejoin and check the logs and it will satisfy the curiosity of the rest in the mean time
[22:44:17] <JT-Shop> he should just stay on till....
[22:47:44] <JT-Shop> one gantry leg almost done
http://imagebin.org/172343
[22:47:51] <toastydeath> why are you assuming people who join are going to behave in a way that is logical or otherwise consistent with reason
[22:48:06] <JT-Shop> LOL
[22:48:43] <Tom_itx> if we were all that logical we would have few questions to ask
[22:54:09] <JT-Shop> if any
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[22:59:17] <andypugh> Lifting Gantry, or Ballista stand?
[23:03:32] <toastydeath> i like how this man thinks
[23:05:48] <JT-Shop> good idea Andy, I was just thinking lifting gantry...
[23:11:26] <JT-Shop> toastydeath: have you seen the Ballista?
[23:12:07] <toastydeath> negative?
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[23:12:43] <JT-Shop> one sec
[23:14:09] <JT-Shop> http://imagebin.org/172344
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[23:14:45] <toastydeath> oh lord
[23:14:55] <toastydeath> i guess i know someone on irc who will be prepared for the zombie apocalypse
[23:15:36] <ve7it> JT-Shop, say... that looks like it would be great for moose hunting...... maybe it would mount on the jeep roll cage!
[23:17:22] <JT-Shop> your not the first one to think about mounting it to the top of a Jeep
[23:17:45] <JT-Shop> we have progressed a bit since that photo
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[23:46:39] <andypugh> Is there an easy way to square a value in G-code?
[23:46:45] <andypugh> It isn't ^ or **....
[23:47:18] <andypugh> Ah, no, sorry, it is ** but in [ ] braces..
[23:50:38] <JT-Shop> I get caught with the [] too
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[23:51:41] * JT-Shop should have some steel erection tomorrow :0
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