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[03:51:24] <KGB-linuxcnc> 03Dewey Garrett 05joints_axes15 44e2529 06linuxcnc New branch with 457 commits pushed, 10827 files changed, 0344019(+), 0450509(-) since master/edfcb03
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[08:50:10] -linuxcnc-github:#linuxcnc-devel- [13linuxcnc] 15pippin88 opened pull request #77: Corrected gmoccapy typos (06master...06LCNCScreen) 02
https://github.com/LinuxCNC/linuxcnc/pull/77
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[09:52:49] <KGB-linuxcnc> 03Norbert Schechner 05gmoccapy_2 96c2b8a 06linuxcnc 10src/emc/usr_intf/gmoccapy/gmoccapy.py Merge branch 'master' into gmoccapy_2 * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=96c2b8a
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[09:58:30] <KGB-linuxcnc> 03Norbert Schechner 05EU_Surplus_FastSeal 10451c8 06linuxcnc 10src/Makefile 10src/emc/usr_intf/gmoccapy/gmoccapy.py Merge branch 'master' into EU_Surplus_FastSeal * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=10451c8
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[12:33:04] <andypugh> It interesting what you find when poking about in the code. I wonder what USE_SPINDLE_FORCE was meant to do?
[12:38:22] <pcw_home> USE_SPINDLE_FORCE Luke?
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[13:17:08] <jepler> > If the USE_SPINDLE_FORCE or USE_SPINDLE_TORQUE mode is in effect, ...
[13:18:18] <jepler> > If the force on the spindle exceeds force (in newtons), reduce the feed rate until the force on the spindle drops below that amount. Otherwise, use the programmed feed rate.
[13:18:44] <jepler> hm buildbot website seems to have fallen over altogether :-/
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[13:36:47] -linuxcnc-github:#linuxcnc-devel- [13linuxcnc] 15jepler commented on issue #77: @pippin88 thank you for offering a contribution to LinuxCNC. Correcting typos is not glamorous work, but I appreciate that you have done it.... 02
https://github.com/LinuxCNC/linuxcnc/pull/77#issuecomment-226942914
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[14:07:11] <andypugh> jepler: I failed to find that, though perhaps I didn;t look hard enough.
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[14:31:14] <pcw_home> Theres some kind of adaptive feed code in LinuxCNC?
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[14:36:13] <jepler> pcw_home: no, but it was planned for back when NIST designed the canon API
[14:39:27] <jepler> andypugh: those are both from the internet, not our source tree
[14:39:43] <andypugh> Ah, OK.
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[14:40:16] <andypugh> It seems like a reasonable idea, but can be done already with adaptive feed.
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[14:47:40] <mozmck> That would be interesting to play with. How do they measure the force on the spindle I wonder?
[14:48:19] <mozmck> Off the top of my head I can imagine maybe a pressure transducer(s) around the spindle bearing?
[14:48:31] <pcw_home> Maybe just spindle torque
[14:48:50] <pcw_home> or a torque mode servo
[14:49:53] <pcw_home> or a velocity mode servos with torque feedback to host (either analog or Ethercat etc)
[14:50:00] <mozmck> Interesting. I guess I'm thinking about what it might take to add something like that to an existing spindle.
[14:51:02] <pcw_home> with Modbus you often have the already (though a bit slow)
[14:51:05] <mozmck> How accurate would torque measurements be? I was cutting some 1/16" aluminum with 1/8" carbide bits and kept snapping them.
[14:51:22] <pcw_home> some VFDs have a analog torque output
[14:52:12] <mozmck> Well, I use a makita rf1100 router in my table right now :-) I might have to replace that to get any kind of measurements.
[14:52:48] <mozmck> Although maybe if I measured force on the router mount it could be useful.
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[14:52:58] <Tom_itx> current feedback maybe
[14:53:40] <mozmck> do you think there would be enough variation at 10000 rpm with an 1/8" bit to stop from breaking it?
[14:54:18] <Tom_itx> doubtful
[14:54:35] <mozmck> that was my gut feeling as well
[15:05:13] <pcw_home> Yeah I suspect with smaller tools its not going to be that helpful unless you
[15:05:15] <pcw_home> had fast force measurement from the spindle mount
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[15:37:06] <Roguish_> tool load can also be measured to a degree with spindle current.
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[15:39:16] <dgarr> jepler: my rebase of joints_axes15 fails on debian jessie 64bit, see
http://www.panix.com/~dgarrett/stuff/ja15_rebase.txt
[15:40:09] <dgarr> not sure if i should revert to optind=0 or something else?
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[16:13:54] <andypugh> dgarr: I am half-way through a huge change based on JA14. I can imagine rebasing that being fun.
[16:14:44] <andypugh> Possibly too big, I can see it taking as long as JA has to be merged.
[16:17:10] <seb_kuzminsky> the buildmaster ran out of disk again. I had *just* added another 30 gigs to it. i'm turning down the lifetime of old debs
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[16:22:00] <andypugh> Maybe add 30TB next time?
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[16:23:03] <andypugh> 30GB really is quite a lot when you think about reading it, isn’t it?
[16:23:20] <andypugh> Eeeh, when I was a lad we though 16k was a lot.
[16:25:29] <Tom_itx> and 10Mb hdd cost more than Tb ssd's do now
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[16:45:52] <KGB-linuxcnc> 03Dewey Garrett 05joints_axes15 0a4650e 06linuxcnc 10src/emc/kinematics/xyzbc-trt-kins.c xyzbc-trt-kins.c unused dz in kinematicsInverse JA * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=0a4650e
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[16:57:20] <JT-Shop> what is the current rt patch in use? I tried 4.6 this morning but it won't boot
[16:58:06] <JT-Shop> https://www.kernel.org/pub/linux/kernel/projects/rt/
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[17:18:59] <jepler> I picked up whatever was in jessie-backports last, 4.4 I guess.
[17:20:12] <JT-Shop> thanks
[17:20:43] <JT-Shop> how do you tell what is in jessie-backports?
[17:22:09] <jepler> well, fwiw, that kernel I have is not in jessie-backports now
[17:22:54] <jepler> but anyway, in any of the usual ways such as using apt-cache search, apt-cache policy, packages.debian.org, etc
https://packages.debian.org/wheezy/linux-image-rt-amd64
[17:22:55] <pcw_home> My experience is that 4.4 and 4.6 are not really good for general use yet (Either terrible latency or crashes either on boot or after a few minutes running) I do have 4.6 running a a quite new CPU reliably but its useless as a general OS as it only runs well on some hardware
[17:23:15] <jepler> the upper right on that page links to each debian codename that has a version of that package in it
[17:23:39] <jepler> so there are none for jessie or jessie-backports, but there are for wheezy (3.2) and stretch/sid (4.6)
[17:24:38] <pcw_home> 3.2 is so old it will have trouble with a lot of current hardware
[17:24:55] <jepler> all old packages from debian are at
http://snapshot.debian.org/package/linux/4.4.6-1~bpo8%2B1/ but they cannot directly be installed with apt
[17:25:04] <jepler> pcw_home: yes I am not *advocating* that by any means
[17:25:07] <pcw_home> (it doesnt support the intel 2xx MACs for example)
[17:26:09] <jepler> maybe you can get packages from there but you have to disable following all the normal validity checks of a package. instructions at
http://snapshot.debian.org/ mention using apt-get -o Acquire::Check-Valid-Until=false
[17:26:32] <jepler> anyway it's an irritating state of affairs to say the least
[17:27:01] <pcw_home> I keep hoping the latest kernel will work on my Core Duo but they either have 170 usec latency or crash after a few minutes
[17:27:48] <pcw_home> I've gone back to 4.1.20-rt23 on the Core Duo
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[18:04:02] <seb_kuzminsky> linuxcnc-build: force build --branch=2.6 0000.checkin
[18:04:03] <linuxcnc-build> build forced [ETA 59m01s]
[18:04:03] <linuxcnc-build> I'll give a shout when the build finishes
[18:04:06] <seb_kuzminsky> linuxcnc-build: force build --branch=2.7 0000.checkin
[18:04:11] <seb_kuzminsky> linuxcnc-build: force build --branch=master 0000.checkin
[18:04:13] <linuxcnc-build> The build has been queued, I'll give a shout when it starts
[18:04:19] <linuxcnc-build> The build has been queued, I'll give a shout when it starts
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[18:30:38] <linuxcnc-build> build #4230 of 1202.rip-lucid-amd64 is complete: Failure [4failed compile runtests] Build details are at
http://buildbot.linuxcnc.org/buildbot/builders/1202.rip-lucid-amd64/builds/4230
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[18:44:14] <KGB-linuxcnc> 03Sebastian Kuzminsky 052.6 1bdc574 06linuxcnc 10tests/halui/mdi/test-ui.py tests: longer timeout in halui mdi test * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=1bdc574
[18:51:10] <dgarr> jepler: ^^ any ideas getopt,optind=1,bsd?
http://www.panix.com/~dgarrett/stuff/ja15_rebase.txt
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[19:11:09] <jepler> dgarr: I can reproduce something like what you're reporting in master branch
http://paste.debian.net/740047/
[19:21:40] <dgarr> jepler: i get same result for your example on ja15 uspace both 32 bit and 64bit
[19:23:24] <linuxcnc-build> build #4242 of 0000.checkin is complete: Failure [4failed] Build details are at
http://buildbot.linuxcnc.org/buildbot/builders/0000.checkin/builds/4242
[19:23:24] <linuxcnc-build> build forced [ETA 59m01s]
[19:23:24] <linuxcnc-build> I'll give a shout when the build finishes
[19:30:20] <JT-Shop> pcw_home: and jepler thanks for the info
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[19:39:46] <dgarr> jepler: however, when i try your halrun -T example on vbox debian wheezy rtai there are no errors (ja15) and minimal_xyz.ini loads ok
[19:40:11] <dgarr> (32bit)
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[19:48:50] <jepler> dgarr: OK that is interesting to know
[19:49:16] <jepler> haltcl: loadusr -w true
[19:49:16] <jepler> Program 'true' finished
[19:49:16] <jepler> haltcl: loadusr true
[19:49:16] <jepler> loadusr: invalid option -- 'u'
[19:59:16] <jepler> dgarr: further reading
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=192834
[20:00:09] <jepler> (commenter is wrong that the behavior is fixed in debian lenny, or else it broke again)
[20:06:09] <dgarr> any objections to me reverting the commit that changed optind in the joints_axes15 branch?
[20:08:02] <jepler> yes, please do not do that
[20:08:09] <jepler> I am adapting ted's fix for master branch
[20:10:27] <KGB-linuxcnc> 03Jeff Epler 05master d9b80fc 06linuxcnc 10src/configure.in 10src/hal/utils/halcmd_commands.c halcmd: Unportably reset getopt state * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=d9b80fc
[20:10:27] <KGB-linuxcnc> 03Jeff Epler 05master f6952d2 06linuxcnc 03tests/halrun-getopt-reset/README 03tests/halrun-getopt-reset/expected 03tests/halrun-getopt-reset/test.hal tests: test for the getopt reset bug * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=f6952d2
[20:13:11] <dgarr> jepler: ok -- is it ok to cherry-pick these commits to ja15 or should i do another rebase?
[20:14:02] <jepler> dgarr: either way is fine with me
[20:14:08] <andypugh> Puzzling: ImportError: /home/andypugh/linuxcnc-dev/lib/librs274.so.0: undefined symbol: _Z18GET_EXTERNAL_SPEEDi
[20:14:27] <jepler> andypugh: $ c++filt _Z18GET_EXTERNAL_SPEEDi
[20:14:27] <jepler> GET_EXTERNAL_SPEED(int)
[20:14:35] <dgarr> ok thanks, i will wait until after the buildbot builds with your commits
[20:14:40] <jepler> if you think GET_EXTERNAL_SPEED is defined, perhaps it has the wrong arugment list?
[20:14:49] <andypugh> COuld be
[20:14:59] <jepler> src/emc/nml_intf/canon.hh:extern double GET_EXTERNAL_SPEED();
[20:15:02] <andypugh> Though it compiles cheefully.
[20:15:24] <andypugh> Ah, it doesn’t look like that any more ;-)
[20:15:24] <jepler> src/emc/task/emccanon.cc:double GET_EXTERNAL_SPEED()
[20:15:34] <jepler> probably you missed changing this one
[20:15:50] <jepler> C++ happily lets you define functions with the same names but different numbers and types of arguments, it's a feature
[20:15:52] <andypugh> Does the _Z81 mean something?
[20:16:19] <jepler> dgarr: yes, it has something to do with >>> len("GET_EXTERNAL_SPEED")
[20:16:19] <jepler> 18
[20:16:21] <andypugh> jepler: Yes, I have even read about polymorphism. I might even have used it
[20:16:26] <jepler> er andypugh
[20:17:00] <jepler> andypugh: when an error message is about a symbol starting _Z, then I always take that symbol, chop it off at a "." if there is one, and send the rest to c++filt
[20:17:07] <jepler> it can tell me what that symbol actually is
[20:18:08] <andypugh> OK, thanks. I was initially wondering if I had accidentally typed in the wrong window and messed up the name.
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[20:21:44] <andypugh> Am I reading things wrong, or is this a set of placeholder functions that don’t actually do anything useful ?
[20:21:47] <andypugh> https://github.com/LinuxCNC/linuxcnc/blob/master/src/emc/rs274ngc/gcodemodule.cc#L558
[20:22:46] <jepler> pretty much
[20:23:16] <jepler> but they have to have a definition (and, in some cases, an innocuous return value) or you get a link error instead of a preview window
[20:24:52] <andypugh> Ah, those do preview, so are the dummy-interpreter?
[20:25:09] <andypugh> Makes sense, now.
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[20:35:08] <andypugh> Woohoo! LinuxCNC is now booting again.
[20:37:10] <linuxcnc-build> Hey! build 0000.checkin #4243 is complete: Success [3build successful]
[20:37:10] <linuxcnc-build> Build details are at
http://buildbot.linuxcnc.org/buildbot/builders/0000.checkin/builds/4243
[20:37:13] <linuxcnc-build> build forced [ETA 1h06m23s]
[20:37:13] <linuxcnc-build> I'll give a shout when the build finishes
[20:39:04] <andypugh> OK, so it segfaults when I start a spindle, but that’s not a huge surprise.
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[20:58:59] <andypugh> 46 files changed, 1507 insertions
[20:59:25] <andypugh> I am surprised by the file count. but imagined i had changed more lines.
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[22:21:14] <linuxcnc-build> Hey! build 0000.checkin #4244 is complete: Success [3build successful]
[22:21:14] <linuxcnc-build> Build details are at
http://buildbot.linuxcnc.org/buildbot/builders/0000.checkin/builds/4244
[22:25:02] <KGB-linuxcnc> 03Jeff Epler 05joints_axes15 e0ee8bf 06linuxcnc 10src/configure.in 10src/hal/utils/halcmd_commands.c halcmd: Unportably reset getopt state * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=e0ee8bf
[22:25:03] <KGB-linuxcnc> 03Jeff Epler 05joints_axes15 2341e7f 06linuxcnc 03tests/halrun-getopt-reset/README 03tests/halrun-getopt-reset/expected 03tests/halrun-getopt-reset/test.hal tests: test for the getopt reset bug * 14http://git.linuxcnc.org/?p=linuxcnc.git;a=commitdiff;h=2341e7f
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[23:30:42] <andypugh> https://forum.linuxcnc.org/forum/9-installing-linuxcnc/31072-netmos-9865-pci-parallel-port-help?start=50#76270
[23:30:56] <andypugh> I am right in thinking that thsi is bad advice?
[23:38:09] <pcw_home> A slower base thread will give a raspier pulse stream (larger magnitude beats between step rate and base thread rate)
[23:38:51] <andypugh> So, not smoother, as claimed?
[23:39:19] <pcw_home> no, larger phase errors
[23:43:09] <pcw_home> if timing was marginal a slower base thread might help (longer pulses if reset is not used)
[23:45:10] <andypugh> I guess I am interested in why Tommylight believes that?
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[23:54:16] <pcw_home> Might be an interesting experiment
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[23:57:54] <pcw_home> I have heard from customers that the could achieve faster step rates with the hardware
[23:57:56] <pcw_home> stepgen (30 /40 % more) even when the software stepgen was capable of generating the
[23:57:57] <pcw_home> required rates. My theory is that the beats between the base thread and the step rate can excite
[23:57:59] <pcw_home> resonances (but this is just a guess)
[23:58:56] <andypugh> Maybe just that the granularity is lower, so the speed steps (ie accel) are lower?