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[03:16:02] <garage_seb> whoops
[03:16:43] <garage_seb> it'd be handy if axis' Touch-Off defaulted to whatever the currently active coordinate system was
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[03:17:18] <garage_seb> i'd switched to g55 to do a practice run off to the side of the part, and when i tried to zero g55 there i accidentally destroyed the zero i had on my part :-(
[03:20:54] <KimK> We eagerly await your patch, lol. What are you making?
[03:24:44] <KimK> I'll check back later.
[03:28:45] <garage_seb> i'm trying to cut some male threads, 1.375 major diameter, 24 tpi
[03:28:51] <garage_seb> against cradek advise, i might add
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[04:12:04] <garage_seb> seems to be working! :-)
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[04:18:12] <garage_seb> yep, worked great! the slight wobbliness of the bridgeport didn't wreck the threadform
[04:18:34] <garage_seb> it's a very large diameter thread, 1.375 major dia, maybe a smaller diameter would have been harder to get right
[04:19:21] <garage_seb> good night all :-)
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[12:37:31] <mozmck> Is the NURBS and S-Curve stuff from Yishin going to make it into master sometime?
[12:38:08] <mozmck> Or are there problems with that?
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[13:39:32] <mhaberler> docs: this is worth having a closer look - does html + pdf; nice graphics, hightlighting, all there:
http://zguide.zeromq.org/
[13:40:55] <mhaberler> uses asciidoc
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[14:25:02] <cradek> mozmck: I only looked at it a long time ago. at that time it did not have support for threading/tapping/css and may have had limitations with feed override. also in the repository was a motion-queuing-usb type thing that would need to be separated out.
[14:25:14] <cradek> mozmck: it may be different now, I don't know
[14:26:05] <cradek> mozmck: it would need someone to finish all the fatures we currently have, and test and maintain it, and I didn't see anyone volunteering to be that person (it's not a merge-and-forget type thing at all.)
[14:26:21] <cradek> I would love to be corrected on any of this.
[14:26:40] <mozmck> cradek: I see.
[14:27:40] <mozmck> sounds interesting anyhow. I wonder if it has more lookahead? I've been reading that linuxcnc doesn't really have that?
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[14:29:21] <cradek> I don't know. if you add jerk-limiting without adding lookahead of course you actually make the machine slower
[14:30:01] <cradek> also, lookahead is easy with a motion-queueing setup, so their implementation may have that intertwined. but I'm only guessing.
[14:30:13] <cradek> if someone is interested in merging there's probably a lot of studying to do :-/
[14:33:04] <awallin> are there tests for tp/tc that would fail/succeed after all the merging was done? seems like such a big change that tests would provide some confidence that it's actually working (or not)
[14:33:41] <mozmck> sounds like more than I have time to dig into
[14:34:06] <cradek> one semi-easy test is to run the torture gcode and monitor vel/acc[/jerk] and watch for constraint violations
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[14:34:25] <cradek> also you oughta watch the path (verify by eyeball in AXIS)
[14:34:47] <cradek> that kind of testing gave us the stable/reliable tp we have today
[14:39:17] <cradek> awallin:
http://git.linuxcnc.org/gitweb?p=emc2.git;a=blob_plain;f=configs/sim/check_constraints.hal;hb=HEAD
[14:42:23] <cradek> running torture gcode while fiddling with the pause/resume/step/feed override with halscope set to trigger on falling constraints-ok
[14:46:02] <awallin> ok... that should be doable on the github-code if someone wanted to test...
[14:47:17] <cradek> sure
[14:49:48] <cradek> //FIXME: eric affection of feed override for velocity is disabled
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[14:52:03] <cradek> most of the comments are in chinese, that makes it a bit harder to understand
[14:53:18] <awallin> yeah...
[14:53:37] <cradek> spindle synchronized motion code is commented out
[14:54:07] <awallin> is there a way of testing G64 mode? i.e. that the actual path is within tolerance of the programmed path?
[14:54:37] <cradek> I don't know of any way except eyeball.
[14:54:59] <cradek> do you know of a report of that not working?
[14:55:42] <awallin> no. Just thinking about what automatic tests could be put in place to be reasonably confident in any major change..
[14:56:18] <cradek> that is a very hard question
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[15:03:16] <cradek> yes there's a queued motion system here, and the trouble that comes with that: reimplemented homing, probing
[15:03:31] <cradek> I don't know if that's separable from the new planner
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[15:06:13] <awallin> you are looking at this?
https://github.com/artek/emc2
[15:16:53] <mozmck> awallin: that's the repo I was referring to, but I haven't really looked at the code yet.
[15:18:14] <mozmck> you could probably do a test with some servo motors connected, and read the encoders to see if the path is within tolerance...
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[15:22:40] <awallin> just stream commanded position each servo cycle to disk. then later check it is within tolerance.. might even be doable in sim-mode (no realtime) ?
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[15:39:40] <cradek> how would you determine whether the position you get is within tolerance?
[15:43:10] <awallin> as a first check you could look at geometry only. check if the commanded position falls on the programmed path. a stricter check would be to correlate the commanded position with the g-code also (might have to record g-code line(s) also with commanded position data then..)
[15:46:23] <cradek> yes I guess my point (in a roundabout way) was that you don't know the commanded position as if tolerance=0, so you can't calculate the diversion
[15:47:45] <awallin> yes.
[15:48:25] <awallin> you'd have to know approximately where in the g-code you are, and the calculate the distance to those g-codes (lines, arcs) and see if you are within tolerance
[15:48:50] <awallin> or maybe you could record a list of canon-lines together with the commanded position
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[15:52:30] <awallin> bbl
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[23:33:11] <CIA-51> 03cradek 07v2.5_branch * r3edbfb8989fc 10/docs/src/gcode/gcode.txt: docs: R not allowed in G10 L20
[23:35:33] <cradek> http://linuxcnc.org/docview/2.5/html/gcode/images/G81ex2.png
[23:35:44] <cradek> wonder what this gui was. seems it was lost to time, whatever it was.
[23:36:00] <cradek> the motif one that was in emc1, maybe
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[23:41:32] <alex_joni> looks like mini
[23:45:42] <cradek> ah - I might not remember mini well enough, but it doesn't look familiar to me.
[23:45:47] <cradek> no big deal either way
[23:46:31] <alex_joni> nope, I just checked.. different layout
[23:46:43] <alex_joni> but the graphics/fonts do resemble it somehow
[23:47:14] <alex_joni> http://www.linuxcnc.org/docs/html/mini.png
[23:47:23] <alex_joni> http://www.linuxcnc.org/docview/devel/html/common/images/mini_fr.png
