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[00:06:11] <CaptHindsight> camview works in Wheezy with Axis
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[02:35:40] <skunkworks> CaptHindsight: was it painful?
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[02:42:09] <CaptHindsight> still is
[02:42:51] <CaptHindsight> getting mplayer in a tab is pretty simple
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[14:38:38] <kwallace> Has anyone had any issues with using a sound card and latency. We were trying to use pcspkr, but I recall a latency issue and it turns out we can't hear it anyway.
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[14:48:00] <jepler> I've never tried to run audio on a machine that was doing realtime
[14:48:44] <jepler> some people have reported that the console beep would cause realtime latency, because accessing the speaker's I/O port causes a SMI (it's emulated by smbios)
[14:50:04] <jepler> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?TroubleShooting#PC_speaker_module_pcspkr
[14:54:21] <kwallace> In the early days, I got used to disabling pcspkr, but it looks like this became part of the normal install. maybe?
[14:54:37] <jepler> not to my knowledge
[14:54:38] <pcw_home> Ive seen that (backspacing into the left margin generate a console beep)
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[14:55:18] <pcw_home> And I think its just pcspkr not sound cards
[14:56:03] <kwallace> We are looking into having a beep when a pendant action occurs.
[14:56:07] <pcw_home> so probably only on old MBs without built in sound
[14:56:59] <cradek> consider putting the beeper in the pendant? machines are very unreliable at having beepers at all today.
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[14:57:16] <cradek> I had to add them to the last batch of machines I put together - there is no beeper on the motherboard, but there is a connector for it
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[14:59:45] <kwallace2> Crud, my ISP reboots just before 8:00.
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[15:04:36] <cradek> tool length probing on my collet-based machine is really nice
[15:05:47] <kwallace2> This is the pendant:
http://www.tormach.com/uploads/images/Gallery/products/milling_accessories/controllers_and_cables/30616_Shuttle_Jog_Controller_lg.jpg , so my options are limited.
[15:08:49] <kwallace2> cradek, do you have a link for your tool probing setup?
[15:12:29] <cradek> nope, it's just a switch mounted to the table
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[15:22:01] <seb_kuzminsky> kwallace2:
http://git.linuxcnc.org/gitweb?p=linuxcnc.git;a=rss;f=configs/sim/axis/remap/manual-toolchange-with-tool-length-switch
[15:25:00] <kwallace2> I had a hell of a time getting manual (dowel pin), probe and tool setter touch-off coordinated. Some bits are in machine units, others in workspace. I ended up losing the task.
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[15:27:09] <seb_kuzminsky> there's definitely plenty of room for confusion in the interaction of setting all the different kinds of offsets
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[15:27:52] <kwallace2> BTW, I got my pcDuino and Raspberry Pi a couple of days ago.
[15:28:32] <kwallace2> They are sooo trendy.
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[15:36:26] <jepler> I'm waiting to hear whether hm2_eth works with the cubieboard. if so I might pick up one of those.
[15:37:09] <PetefromTn_> cradek Did you make your table mounted tool length probe or buy it?
[15:37:15] <cradek> oh I made it
[15:37:21] <PetefromTn_> nice
[15:37:48] <cradek> it's an engraving spindle so all the tools are about the same length and they're generally fairly pointy
[15:37:50] <PetefromTn_> I am working on a design for my Cincinatti using a short length of linear shaft and a linear bearing. Might I inquire as to how yours is setup
[15:37:54] <cradek> so it's very simple to poke a switch
[15:38:11] <PetefromTn_> oh then this is not on your VMC....
[15:38:18] <cradek> heh my setup is as simple as possible
[15:38:19] <cradek> no
[15:38:31] <PetefromTn_> thats good I like simple.
[15:39:08] <cradek> aha I do have a picture of it,
http://timeguy.com/cradek-files/emc/tool-length-sensor.jpg
[15:39:15] <cradek> don't laugh
[15:39:18] <cradek> it works *great*
[15:39:36] * archivist giggles
[15:39:39] <cradek> heyyyy
[15:40:08] <PetefromTn_> WOW now that is next gen there hehe
[15:40:08] <archivist> some microswitches have specifications some dont
[15:40:23] <PetefromTn_> ;)
[15:40:35] <cradek> it's more repeatable than you'd expect
[15:40:42] <PetefromTn_> I don't doubt that.
[15:41:02] <PetefromTn_> do you have some sort of probing routine that you have programmed to touch off
[15:41:07] <cradek> it probes fast and then slow
[15:41:14] <cradek> happens automatically on m6
[15:41:27] <PetefromTn_> so is this in remap?
[15:41:30] <cradek> yes
[15:41:33] <PetefromTn_> nice
[15:41:52] <PetefromTn_> how do you handle your tool length in the code?
[15:41:53] <cradek> goes up, waits for you to hit ok on the manual tool change dialog, then probes and writes the length to the tool table
[15:42:08] <cradek> uses plain old g43 like normal
[15:42:23] <PetefromTn_> wow thats cool
[15:42:37] <PetefromTn_> is this on your five axis little maxnc?
[15:42:45] <cradek> yeah
[15:42:55] <cradek> I'm usually using it in 3 axis mode lately
[15:43:11] <PetefromTn_> that must be the most state of the art tiny homebuilt mill in the galaxy
[15:43:35] <cradek> the delrin antibacklash nuts are very good
[15:43:45] <cradek> it's a surprisingly useful machine for one you can carry around yourself
[15:43:48] <PetefromTn_> seriously..
[15:43:54] <PetefromTn_> delrin nuts?
[15:44:14] <cradek> yeah, on acme leadscrews
[15:44:41] <kwallace2> I have had my probe fail to re-conduct or make after break a few times. It comes to mind that some contacts need to have enough current going through them to keep them clean.
[15:44:46] <PetefromTn_> how did you cut the nuts?
[15:44:57] <cradek> I didn't, I bought them
[15:45:02] <jepler> fwiw omron D2FS-FL-N (microswitch with hinge lever) gives its operating point as +-1.2mm, which is obviously a much looser tolerance than cradek depends on for his TLS
[15:45:19] <jepler> I think these are the delrin ntus:
http://www.dumpstercnc.com/
[15:45:47] <kwallace2> Nut forming by blow torch and bench vise?
[15:45:58] <cradek> jepler: that doesn't seem like the right measurement at all. sounds like that's among many switches
[15:46:07] <jepler> cradek: yes
[15:46:17] <jepler> cradek: I think you hit the nail on the head
[15:46:18] <cradek> kwallace2: no, they were surely cut and they have springs
[15:46:30] <PetefromTn_> I am working on a design that uses a housing that the linear bearing bolts on top of.
[15:46:55] <PetefromTn_> then the linear shaft will have a collar with a flange on it screwed to the bottom
[15:47:08] <cradek> yes they are something like this:
http://www.dumpstercnc.com/images/1_2-8_2_Start_ACME.jpg
[15:47:10] <PetefromTn_> The shaft will be spring loaded upwards with gentle pressure.
[15:47:38] <PetefromTn_> in the base there will be a metal plate with the ground contact on it isolated on top of some kinda plastic isolators
[15:47:40] <kwallace2> Sorry, I wasn't referring to the link, but recalling a thread a while back.
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[15:50:30] <cradek> http://timeguy.com/cradek-files/emc/M-x-doctor.png
[15:50:36] <cradek> I wonder what caused this to happen
[15:50:44] <PetefromTn_> http://i.imgur.com/2nupbPb.jpg something like this..
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[15:51:27] <cradek> fancy
[15:51:33] <PetefromTn_> not really.
[15:51:44] <cradek> well, compared to mine...
[15:52:10] <PetefromTn_> It is just a base with a spring, a short length of linear shaft, a linear bearing and a tophat to keep shit out of the linear bearing probably made from delrin or something.
[15:52:40] <archivist> I is the FEATURES =n in a release yet?
[15:52:41] <PetefromTn_> I have the bearing and shafting here already just got sidetracked on machining the base.
[15:53:14] <PetefromTn_> not entirely sure how best to isolate the ground plate from the body of the base and hold it securely.
[15:53:46] <PetefromTn_> was considering machining the base from phenolic plastic but it is pretty expensive.
[15:53:59] <PetefromTn_> not even entirely sure the damn thing will work really.
[15:54:34] <PetefromTn_> was it difficult to setup the auto probing routine that kinda stuff is NOT my strong suit.
[15:54:50] <cradek> there's a sample
[15:54:55] <cradek> iirc, I simplified it a lot
[15:55:10] <cradek> the example seemed overcomplicated
[15:55:22] <PetefromTn_> I saw your video with the VMC and touch screen and probing etc. etc. That setup is the cats ass man. Well done.
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[15:55:38] <cradek> yeah that's the retrofit I'm most proud of
[15:55:44] <cradek> it's really quite good
[15:56:03] <PetefromTn_> I don't have a touch screen interface but I would really enjoy auto tool touch off and probing at some point in the future.
[15:56:25] <PetefromTn_> do you have the auto tool touch off on that VMC too?
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[15:57:34] <cradek> nope
[15:58:05] <PetefromTn_> The HAAS machines I ran had the auto tool length probing and spindle remote probing and damn that is nice stuff. All renishaw of course but makes setups a breeze and just insert tool and hit go for the most parrtt
[15:58:06] <cradek> manually measured to a 123 block sitting on the table
[15:58:14] <PetefromTn_> that is exactly how I do it now.
[15:58:29] <cradek> it's quite easy and fast
[15:58:49] <PetefromTn_> I have the G59.3 location at the back rear corner of the table and just MDI that and then load tool and touch off with MPG
[15:58:50] <cradek> I come down past a dowel diameter and use the wheel to move up until the dowel rolls under it
[15:58:58] <cradek> yep
[15:59:06] <cradek> touch off to fixture works nice for that
[15:59:20] <PetefromTn_> is that what you use.
[15:59:22] <cradek> fwiw,
http://timeguy.com/cradek-files/emc/manual_change.ngc
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[15:59:47] <cradek> then the ini has: REMAP=M6 modalgroup=6 ngc=manual_change
[15:59:53] <cradek> it's so simple
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[16:00:41] <cradek> G30 is over the switch of course
[16:00:58] <PetefromTn_> G38.2 must be the probe callout then
[16:01:08] <cradek> yep
[16:01:22] <cradek> #5063 is the Z value of the probed position
[16:01:29] <cradek> #5400 is the loaded tool
[16:01:31] <Connor> So, How do you determine the OFFSET length of your touch off switch?
[16:01:55] <cradek> by setting the G59.3 coordinate system's origin in the right place
[16:01:59] <PetefromTn_> you can measure from the table top I guess
[16:02:05] <cradek> (but it doesn't really matter much)
[16:02:25] <PetefromTn_> as long as they are all referenced to the same point it does not I guess
[16:02:31] <cradek> yeah
[16:02:42] <PetefromTn_> whichever tool you touch off with to the part will reference the rest
[16:02:46] <cradek> I like tool lengths to be as small as possible, and ideally negative
[16:03:27] <Connor> I'll have to play with them..
[16:03:35] <Connor> What about when you touch off to stock?
[16:03:43] <Connor> do you use the probe for that too ?
[16:03:46] <cradek> looking at the tool table, they tend to be 0.1 - 0.2
[16:03:50] <PetefromTn_> probably uses a round dowel pin like I do.
[16:04:20] <PetefromTn_> unless you have a spindle probe carefully setup.
[16:04:25] <cradek> on my vmc I use the probe. on max I use the shank of whatever 1/8 engraving tool is handy
[16:04:25] <Connor> I use the sheet of paper trick when doing V bits..
[16:04:43] <cradek> try rolling a known diameter under it while moving up
[16:04:51] <cradek> it's MUCH better than moving down to touch something
[16:05:00] <PetefromTn_> yes exactly
[16:05:04] <cradek> much much much
[16:05:11] <PetefromTn_> I use a .625 ground dowel pin
[16:05:22] <cradek> you can feel the rolling thing accelerate as it gets closer to rolling under, because of the round shape
[16:05:44] <PetefromTn_> jog down in .01 until it does not go under and then switch to .0001 until it just slides under
[16:06:26] <cradek> yep you don't even have to see closely to do it, it's a good thing to do by feel
[16:06:46] <PetefromTn_> yes agreed.
[16:06:59] <PetefromTn_> altho a spindle probe would be beauty
[16:07:20] <PetefromTn_> you have a renishaw?
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[16:12:08] <cradek> yes on the vmc
[16:12:18] <cradek> it's great
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[16:12:35] <cradek> but the battery is always dead if you use it infrequently
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[17:02:12] <Connor> anyone looked into that remap bug that guy found the other day? Were when using remap, if you STOP a program.. it'll jump down into the g-code file somewhere and run a few lines before stopping ?
[17:02:28] <Connor> could cause a major problem for someone.
[17:05:21] <seb_kuzminsky> yeah that sounds really bad :-(
[17:05:31] <seb_kuzminsky> and no, i havent tried to debug it :-(
[17:05:57] <seb_kuzminsky> https://sourceforge.net/p/emc/bugs/394/
[17:06:20] <Connor> Yea.. for some reason the STOP isn't purging the path queue when remap is involved..
[17:07:37] <Connor> seb_kuzminsky: I replicated the issue in a 2.7 master release as well.
[17:07:51] <Connor> with stock rack-toolchange sim and a custom one I wrote.. both do it.
[17:08:53] <seb_kuzminsky> yeah, sounds like a bug deep in the remap code
[17:08:59] <seb_kuzminsky> can't say i'm totally surprised
[17:09:09] <seb_kuzminsky> (remap is the same in 2.6 and master)
[17:15:08] <Connor> seb_kuzminsky: Looks like he "included" a fix.. but.. broke the ability for the on_abort..
[17:16:48] <seb_kuzminsky> i dont understand that statement
[17:18:14] <Connor> In the bug.. the reporter commented out some lines.. that fixed the behavior.. but, now the on_abort is no longer executed.. (the cleanup scripts for remap)
[17:22:37] <seb_kuzminsky> oh, i see
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[17:23:06] <seb_kuzminsky> yes, right, that's certainly the wrong fix, but it helps narrow down where the bug and the proper fix belong
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[18:23:05] <skunkworks> logger[psha],
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[19:05:23] <PCW> 3KHz for ~20 hours so far with G3258 (5 stepgens)
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[19:08:59] <PCW> So if you have to go through lots of code to do I/O
[19:09:01] <PCW> ( Preemt-RT full network stack ) _lack_ of speed kills :-)
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[19:11:15] <skunkworks> neat!
[19:13:19] <jepler> oh if you've set it up right it only enters estop
[19:13:29] <jepler> saying "kills" is being a bit hyperbolic
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[19:18:40] <jepler> not at all the message we want our users to hear either
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[19:42:58] <PCW> Sorry, got a bit excited...
[19:45:30] <PCW> the bad parts is that now a size-able portion of the time is in the 7I80 code so I need to see if I can improve it some
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[20:02:08] <micges-dev> current output form limited jerk jogging:
http://ibin.co/1cNZjVN8wTtu
[20:04:44] <PetefromTn_> https://www.youtube.com/watch?v=uYnBKLXCG6A
[20:10:32] <PCW> 4 KHz seem to run OK but sometimes has RT errors at startup
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[20:17:33] <PCW> micges-dev: thats impressive even with the little glitch, has to be a lot gentler on hardware
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[20:32:33] <jepler> PCW: when you say 'in the 7i80 code', do you mean in the d16 code?
[20:32:53] <jepler> PCW: or you mean in the hal realtime thread?
[20:33:03] <brianmorel99> When you guys say 4KHz that means you are running 0.25 milli-second base thread? Am I doing the math / terminology right? ( 2KHz = 0.5 ms , 3KHz = 0.33 ms )
[20:33:15] <jepler> brianmorel99: yes
[20:33:38] <jepler> brianmorel99: though these systems have just one thread, not two threads like with software step generation
[20:34:52] <brianmorel99> Is there any benefit of running a faster thread than say 1ms for a simple 3 axis step machine (hardware stepping) ? I assume this is more of a stress testing situation?
[20:37:19] <jepler> street cred?
[20:43:40] <jepler> right now, the pulse rate of a stepper output changes instantaneously from the old speed to the new speed (no acceleration between servo cycles). pushing the servo cycle faster means that these velocity jumps become smaller.
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[20:43:57] <jepler> though pcw has also rumbed about adding acceleration within the hostmot2 stepgen itself
[20:45:10] <PCW> higher rates are mainly useful for closing the loop on torque mode servo drives
[20:46:12] <PCW> 1KHz is fine for most step/dir systems unless you have very high accel rates
[20:47:10] <PCW> (or requirement for very high accuracy at high accel rates)
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[20:47:29] <micges-dev> PCW: indeed it is WAY more gentle at much higher accels
[20:48:12] <PCW> should make servo tuning/performance better also
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[20:51:06] <PCW> brianmorel99: I really want to be sure there's enough margin even at 1 KHz
[20:51:18] <PCW> really really
[20:54:23] <PCW> jepler: I need to 'scope my 7I80 debug pins to see where the time is going
[20:54:25] <PCW> looks like now there's about a 100 usec + jitter readtime (send request/get response)
[20:55:13] <PCW> need to see how much of that is 7I80 parse time vs wire time
[20:55:27] <PCW> (and linux network stack time)
[20:56:16] <brianmorel99> Well, I think it's great that your fulley testing it. I just put the last coat of paint on the new workbench, so the mill and lathe are getting mounted tonight. Hopefully some steppers will go on by the weekend.
[20:56:35] <PCW> thats for 5 stepgens, encoder 6 analog outs on 7I83 7I76 DIO
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[21:58:33] <jepler> oh linuxcncrsh
[21:58:35] <jepler> who will debug you?
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[22:10:28] <skunkworks> so.. I am setting up m19 for spindle orient. (was using m100/m101) It doesn't really say but it seems R is a required word. (no error - just doesn't do anything)
[22:11:34] <skunkworks> I would think that R should be required - the docs say it defaults to 0.
[22:11:43] <skunkworks> *shouldn't
[22:12:02] <skunkworks> which is fine if you are just using it for a mechanical lock.
[22:13:55] <skunkworks> but M19R0 does seem to work. which is still nicer than M100/M101 as m3,4,5 disable it now. (that is cool)
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[23:03:24] <PCW> skunkworks 1 hour at 4 KHz
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[23:04:35] <PCW> w/youtube playing
[23:14:34] <skunkworks> PCW, Awesome!
[23:15:09] <skunkworks> so - ethernet should work well with non velocity mode amps.,.,
[23:16:08] <skunkworks> with the right computer hardware :)*
[23:17:07] <PCW> Yeah fast
[23:18:12] <PCW> at 4 KHz I do get real time delays sometimes at startup but not never when running (so far)
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[23:47:37] <jepler> it would be nice to do something about that
[23:47:48] <jepler> I wonder if the first N periods should just not have realtime delays reported
[23:47:54] <jepler> where N is << 1 second of time
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[23:56:52] <skunkworks> does it keep reporting them in dmesg?
[23:58:00] <skunkworks> the j1900 has been running 2khz for a while now
[23:58:08] <jepler> skunkworks: yes, but what I took pcw to mean is that they show up at the start or not at all
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