#linuxcnc | Logs for 2019-03-24

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[00:30:40] <XXCoder> Tom_L: remember the non-ground mic? I "ground" it using sandpaper lol
[00:31:05] <XXCoder> it seem to have helped as it now lines up at zero, has no major burrs and measure seems ok
[00:31:35] <XXCoder> i used mic to keep sandpaper very flat to face
[00:31:49] <XXCoder> so it was pretty even. good enough for home! lol
[00:31:50] <Tom_L> heh
[00:32:12] <XXCoder> hey its 3 bucks and i took pictures before in order to complain
[00:33:34] <Tom_L> i doubt you could get it certified
[00:33:40] <XXCoder> box it come in was shattered by really bad packaging
[00:34:21] <XXCoder> certification guy looking at my new mic: https://www.youtube.com
[00:34:44] <XXCoder> other 2 guys is coworker and boss
[00:51:09] <XXCoder> wow. https://www.trbimg.com
[00:51:12] <XXCoder> he died last year
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[01:44:26] <XXCoder> Tom_L: "The ends are not ground properly so it is completely useless as a micrometer. The package was also smashed by lack of protection around item."
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[01:46:52] <XXCoder> https://imgur.com
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[03:52:32] <Deejay> moin
[03:52:59] <XXCoder> yo
[03:53:22] <XXCoder> gloops: https://imgur.com heh
[03:57:13] <gloops> yeah but it probably came with the usual disclaimer 'please allow +-3mm for manual measurements'
[03:57:26] <XXCoder> yeah
[03:57:55] <XXCoder> i cleaned it a little bit, works better but yeah certification people wouldnt have been happy, nor amused
[04:01:00] <gloops> oh its yours ? lol
[04:01:28] <XXCoder> yep
[04:01:30] <XXCoder> 3 bucks lol
[04:01:35] <XXCoder> worth 1 buck
[04:01:41] <XXCoder> so i overpaid oh well
[04:01:42] <gloops> lol, i thought it was just something youd found on the net
[04:02:11] <XXCoder> its not quite repeatable it varies around less than .1mm
[04:02:15] <XXCoder> but plenty for home use.
[04:02:45] <gloops> ok for some things
[04:03:12] <gambakufu> you can use it as a clamp
[04:03:19] <XXCoder> indeed lol
[04:04:20] <gloops> $3 for precision mini G clamp
[04:04:23] <gloops> not bad
[04:04:47] <XXCoder> yeah thought might end u being $0
[04:05:06] <XXCoder> i filled out complant form because of course.
[04:05:35] <gloops> probably right to leave bad feedback, saves others making the mistake
[04:06:28] <gloops> ive bought cheap stuff - its not the money really, its the wait, waiting for a part to continue with something, it arrives 3 week later, you realise you just wasted 3 weeks because youve got to buy a proper one now
[04:07:06] <XXCoder> this mic i bought for pure lols
[04:07:17] <XXCoder> dont really need it, though wanted a metric mic
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[05:17:02] <zkrx> is it safe to operate a stepper driver without having any motor attached (for debugging)?
[05:17:15] <zkrx> I'm talking about this kind of drivers: https://www.omiocnc.com
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[06:03:55] <jthornton> morning
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[07:20:53] <XXCoder> hey jthornton https://imgur.com check it out lol
[07:21:15] <XXCoder> it was actually worse than i expected. it was pretty hard to take my nearly zero expections down but they managed.
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[07:32:06] <SpeedEvil> Is that hacksawed off?
[07:32:31] <XXCoder> possibly?
[07:32:42] <XXCoder> it looks pre-harden and pre-ground
[07:33:06] <XXCoder> ie its not even ready yet. if I had grounder machine I would be able to finish it, but i dont.
[07:33:26] <XXCoder> just had a thought
[07:33:32] <XXCoder> what if it can be good student project
[07:33:52] <XXCoder> ans they keep the finished one
[07:34:38] <x2s> Hi. I'm wondering, is there a way to get control back over the mill during a tool change, so I can readjust the Z axis somehow? Currently I'm doing it with stopping, changing the tool, adjusting the height, then re-starting the program, but from where the new tool is needed.
[07:35:32] <XXCoder> there should be configuration yeah manual tool change it will go to z home then wait for you
[07:35:56] <XXCoder> you can then change to jog, mdi whatever needed to set tool length, then go back to program and run
[07:36:19] <Tom_L> morning
[07:36:27] <XXCoder> good morning
[07:40:08] <Tom_L> x2s are you using run from line?
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[07:56:03] <x2s> Tom_L: yes
[07:58:11] <x2s> XXCoder: can you drop me a hint where to look in the documentation?
[07:58:39] <fdarling> zkrx: it's safe to run a stepper driver without a motor connected, however it is *not* safe to disconnect the motor while the driver is on!
[07:59:21] <fdarling> zkrx: the inductance of the motor will cause a high voltage spike and it'll arc as you're disconnecting and potentially (very likely, I've had it happen) fry the transistors on the driver
[07:59:47] <fdarling> zkrx: this often manifests by it letting out magic smoke because it fails short circuit and then blows open circuit due to the mini fire
[08:06:17] <x2s> looks like there's nothing built-in for this. But I could create my own pyvcp interface for it, I guess
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[08:34:16] <zkrx> fdarling: thanks! I saw this warning in some driver datasheet indeed.
[08:47:10] <gloops> also dont change the dipswitch settings while power is on
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[11:06:06] <Roguish> pcw_home: Peter, are there specific 6i24 bit files, for higher clock rates as alluded to in the 6i24 manual? Where can I acquire them? only 5i24 firmware is posted for both the 5i24 and 6i24 on Mesanet.
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[12:12:24] <pcw_home> I usually don't bother making the 6I24 bitfiles and just use 5I24 bitfiles ( any performance difference is negligible )
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[12:20:01] <PL7icnc> hi gloops are you on
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[12:59:34] <_unreal_> jhust ordered some REALLLLY cool nano fans
[12:59:49] <_unreal_> blowers technically
[13:00:37] <_unreal_> The thing is TINY http://www.sunon.com
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[13:49:02] <SpeedEvil> :)
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[14:41:18] <Tom_L> busy day here
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[14:44:58] <gloops> slowly dying with cold or some hellish affliction anyway
[14:45:29] <Tom_L> finally ran some steel parts on the mill
[14:45:39] <Tom_L> slowly but it did ok
[14:45:50] <gloops> yeah, how did it go Tom_L?
[14:46:17] <Tom_L> http://tom-itx.no-ip.biz:81
[14:46:23] <Tom_L> right one is alum
[14:47:05] <gloops> that looks pretty good
[14:47:07] <Tom_L> made a few adjustments but overall went great
[14:47:37] <Tom_L> i'll polish up the OD maybe
[14:48:00] <Tom_L> not critical to the part...
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[14:52:41] <_unreal_> gloops, I'm lucky to get sick once a year living in the tropics
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[14:53:15] <_unreal_> one if the biggest difference for me ever sense I left maine... I no longer have the nonstop runny nose in the winter time
[14:53:30] <gloops> i cant remember when i last had a cold tbh, i thought this would be over in a day or 2 but it isnt
[14:53:36] <gloops> done nothing to day
[14:53:53] <_unreal_> lucky you... I've been cleaning dog mess
[14:54:01] <_unreal_> fam refused to get rid of the bastard
[14:54:14] <gloops> lol
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[16:39:29] <fragalot> 'sup
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[16:41:45] <rigid> ahoy
[16:42:31] <rigid> what's the maximum steps/s you can achieve using linuxcnc with motor driver + encoder connected to bare metal?
[16:42:46] <fragalot> depends what you're running it on
[16:43:36] <rigid> fragalot: not too exotic hardware, something like raspi or asus tinker board
[16:45:22] <fragalot> i'm not sure on a raspi but I wouldn't expect too much if i'm honest
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[16:46:21] <rigid> hm, what could be the bottleneck?
[16:46:22] <fragalot> there seem to be a project or 2 to run it using the GPIO pins, but I can't find specs
[16:46:25] <rigid> raspi gpio is quite fast. you can use it to transmit radio signals
[16:48:06] <fragalot> https://forum.linuxcnc.org
[16:48:30] <rigid> ah thanks
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[17:54:30] <Deejay> gn8
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[18:57:48] <XXCoder> >:( https://www.king5.com
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[19:34:14] <cncjerry> anyone home?
[19:35:03] <cncjerry> big problem, hardrive crashed on my mill. it had been running fantastic for years and years. config files are not backed up so I am trying to recreate them.
[19:35:53] <cncjerry> I use a servo system, 1100oz/in motors, gecko g320s. I thought I used a standard stepconfig before. I am getting joint follow errors on rapids
[19:36:44] <cncjerry> I took out ferror and the otherone, min_ferror (sic) just to see if I had them hosed. can someone give me a hint on this one? spent hours.
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[22:34:14] <_unreal_> sigh..... waiting for a computer to install ubuntu so I can atempt to finally compile the proper RT kernel I need
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[22:48:40] <XXCoder> fun
[22:48:43] <XXCoder> hey JT-Shop
[22:51:26] <_unreal_> been driving me crazy I cant find anyone to give me a hand on trying to compile something all I get is additude and your idea is worng...
[22:51:36] <_unreal_> I'm like WTF is your problem....
[22:51:40] <XXCoder> in here?
[22:51:41] <_unreal_> my project not yours
[22:51:53] <_unreal_> likely sleeping?
[22:52:24] <fdarling> _unreal_: when you say "a hand on trying to compile something", do you mean the kernel or some other piece of software?
[22:52:36] <_unreal_> anything
[22:52:54] <_unreal_> fdarling, https://forum.armbian.com
[22:52:58] <fdarling> _unreal_: I used to use Gentoo Linux and have a lot of experience manually compiling Linux kernels, but I do not have experience packaging up the kernel in a way that will integrate with Ubuntu nicely
[22:53:01] <_unreal_> err sorry worng link
[22:53:10] <_unreal_> https://www.armbian.com
[22:53:15] <_unreal_> Thats the right link
[22:53:25] <fdarling> _unreal_: I am also a C/C++ programmer so I can usually power through compilation errors ;-)
[22:53:51] <fdarling> _unreal_: what about that board?
[22:54:10] <_unreal_> ok before I tell you anything else let me show you the project
[22:54:17] <_unreal_> https://photos.google.com
[22:54:24] <_unreal_> been building this for a while
[22:55:25] <fdarling> _unreal_: all right, I looked over the photos
[22:55:27] <_unreal_> asus tinker board, I'm buiding a cnc machine. this is the computer system I want to use with it. I plan to use linuxcnc
[22:55:50] <_unreal_> the tinker board is much like the RPI but 2x cpu 2x mem etc... same GPIO
[22:56:22] <_unreal_> My goal is to setup armbian with a RT kernel linuxcnc and get the hal setup so I can use linuxcnc with the GPIO like one with the par port
[22:57:18] <_unreal_> fdarling, are you in the USA?
[22:57:19] <fdarling> _unreal_: I have seen a crazy Russian online driving stepper motor based 3D printers using accelerated Python and DMA, so it should definitely be possible
[22:57:23] <fdarling> _unreal_: yes I am
[22:57:48] <_unreal_> if your interested I'll build you one of these shells if you can solve my software issues before I do
[22:58:39] <fdarling> _unreal_: I might appreciate that, but I'll help you anyways ;-) unless that setup can get me >4kHz servo thread rates I am not seeing too much advantage over using an x86 computer
[22:58:49] <fdarling> _unreal_: so what are your immediate issues?
[22:59:09] <_unreal_> tinker board, armbian, RT kernel, linuxcnc
[22:59:38] <fdarling> _unreal_: is it that you don't know how to do any of this? Or you actually hit a snag trying to follow guides?
[22:59:38] <_unreal_> second phase, linuxcnc GPIO though GPIO and kernel may go hand in hand depending on setup
[23:00:00] <fdarling> _unreal_: https://www.youtube.com
[23:00:02] <_unreal_> I'm not strong in kernel compiling
[23:00:26] <_unreal_> I know linux dont get me worng but I'm no programmer.
[23:00:34] <fdarling> that's the Russian guy who uses Python and DMA to stream waveforms out the GPIO. He has it working amazingly well, I have been meaning to study his code so I can see about doing it without Python (should only be better!)
[23:01:05] <_unreal_> oh yayayaay I have seen that one
[23:01:16] <_unreal_> guy has 3d printer, cnc and hot wire or something all on one
[23:01:35] <fdarling> _unreal_: LinuxCNC supports ARM, that much I know
[23:02:03] <_unreal_> the issue is NO one has published a RT image for tinker board
[23:02:09] <_unreal_> just howto's
[23:02:14] <fdarling> _unreal_: I'd say that the first step would be to get the Linux distribution up and running with LinuxCNC built in "simulator" mode (no realtime) and once you have that working, you can work on getting the realtime kernel, then rebuilding LinuxCNC with realtime support
[23:02:35] <_unreal_> right..
[23:02:38] <fdarling> _unreal_: do you have ARMbian or whatever installed yet?
[23:02:45] <_unreal_> yes
[23:03:02] <fdarling> _unreal_: have you made sure that there isn't an off-the-shelf RT kernel in the repository?
[23:03:16] <_unreal_> I would not know for sure
[23:03:32] <_unreal_> give me a few and I'll get my build in front of me and booted
[23:03:39] <_unreal_> you know I dont even know what to call the thing
[23:03:43] <fdarling> _unreal_: can you set up SSH access to the machine?
[23:03:49] <_unreal_> already working
[23:03:56] <_unreal_> I just have to plug it in
[23:04:00] <_unreal_> dbl check IP
[23:04:11] <fdarling> _unreal_: if you want, I can get on SSH with you and we can share a console session using 'screen'
[23:04:44] <_unreal_> give me a few need to bring the shell over to my desk
[23:05:07] <_unreal_> "aka shut down netbook that is sitting in the area it iwll be...
[23:07:44] <_unreal_> ok boot
[23:07:46] <_unreal_> boooting
[23:08:04] <_unreal_> had a small panic attack. didnt turn on. turned out the extension cord was not plugged in
[23:08:54] <_unreal_> and I'm in
[23:09:07] <_unreal_> tinker@tinkerboard:~$
[23:09:29] <_unreal_> Linux tinkerboard 4.19.20-rockchip #5.75 SMP PREEMPT Fri Feb 8 11:59:37 CET 2019 armv7l armv7l armv7l GNU/Linux
[23:10:38] <_unreal_> been a while since I used screen
[23:10:46] <fdarling> _unreal_: I private messaged you, do you see it?
[23:11:08] <_unreal_> !!!!!!!!!!!!!!!!!!!!!!!!!!! I figured it out ... I've been having typing issues as of late..... I think my chair is dieing...
[23:11:17] <_unreal_> it keeps going down slowly
[23:11:27] <_unreal_> ok
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[23:47:36] <roycroft> cut back on the cheetos, _unreal_
[23:48:29] <_unreal_> are you saying I got a big but?
[23:48:56] <roycroft> i'm just suggesting that the problem may not be with the chair, but with the occupant