#linuxcnc Logs

Apr 24 2025

01:48 AM Deejay: moin
12:43 PM roycroft: well if you haven't gotten rid of it by the time i get my workshop extension built perhaps you can ship it to me :)
12:44 PM xxcoder: its riciously heavy table
12:49 PM Tom_L: i wouldn't wanna move that. mine is only 1/2" and it hasn't moved in years
12:49 PM roycroft: my joinery bench weighs about 225kg
12:50 PM roycroft: and i think it's just about the right size and weight
12:50 PM xxcoder: I probably would design and use in least 5" wheels attachment to move such a heavy table
12:50 PM xxcoder: non-perment install
12:51 PM roycroft: you would probably only move it once a decade or so at most
12:51 PM roycroft: in which case a forklift would be inorder
12:51 PM Tom_L: if that
12:51 PM roycroft: yes
12:51 PM Tom_L: right now my cnc is sitting on it
12:51 PM roycroft: if i got one that big i would find a home for it and it would stay there forever, unless i decided to get rid of it
12:52 PM Tom_L: mine is smaller than jt's but plenty heavy
12:52 PM roycroft: so now my boss is complaining that did not migrate the mail server properly
12:53 PM Tom_L: when i was a kid our neighbor was a welder and when he retird he 'gave' it to me very cheap along with an antique drill press and stand
12:53 PM roycroft: that some customers are unable to connect to it, getting server unreachable errors
12:53 PM roycroft: i asked about those customers' server settings, and some are using hostnames that we retired in july of 2023
12:54 PM roycroft: i have no idea how they possibly kept working since then with those settings
12:55 PM roycroft: anyway, i sent my boss the dns changelogs for the domain in question showing that those hostnames were deleted on july 25 2023, and he's calming down a bit now
12:56 PM rdtsc-w: This isn't confusing at all... https://pypi.org/project/pyexif/ and https://pypi.org/project/piexif/
12:57 PM xxcoder: how is 2 same urls confusing?
12:58 PM xxcoder: ah py and pi nm
12:58 PM Tom_L: for those that can't spell
12:59 PM Tom_L: different maintainers too
01:01 PM rdtsc-w: well I had an app to resample .jpgs from 95% phone to 50% so I could give to sales and have them send to customer... but now "piexif" isn't working, so refactoring code for "pyexif"
01:02 PM rdtsc-w: latest dumb Windows update reset all user preferences
01:02 PM rdtsc-w: including python
01:03 PM Tom_L: i've never found a smart windows update
01:03 PM xxcoder: wouldn't know, havent used windows for a decade
01:03 PM bjorkintosh: rdtsc-w: it's not possible to use it under wsl2?
01:03 PM Tom_L: i still use NT4 & 7 for some things
01:03 PM rdtsc-w: I'm mostly non-Windows, but have to use it at work (boooo)
01:04 PM Tom_L: err NT
01:04 PM bjorkintosh: if you *can* install wsl2, it might reduce your headaches on windows a bit.
01:04 PM rdtsc-w: no bjorkintosh, files are across a mapped drive; it's a mess
01:04 PM bjorkintosh: oh.
01:05 PM rdtsc-w: and our IT ppl think I'm some super-hacker or something (probably because I introduced 3 rogue linux boxes to their network, which they cannot control... heheh)
01:06 PM bjorkintosh: been there. laughed hard.
01:06 PM bjorkintosh: and went right back to being productive.
01:07 PM rdtsc-w: it's funny though, when someone needs a compact flash card copied, they've learned to come to me
01:07 PM bjorkintosh: the IT guy was alarmed that I had all these 'crazy' things installed on my work computer. he removed them and I said nothing. the following day I sent an email to his boss saying that my productivity had been reduced to worse than zero, thanks to his over eager subordinate.
01:07 PM bjorkintosh: they put everything back and left me the fuck alone.
01:08 PM rdtsc-w: smart! one day my PC was running really slow... found out they turned on bitlocker... promptly decrypted and disabled that
01:09 PM bjorkintosh: hah! they tried that too!
01:09 PM bjorkintosh: my it guy and yours might have been trained by the same youtube channels.
01:11 PM rdtsc-w: sounds like it! then one day, out of the blue, my phone rings. They say my PC was contacting all manners of 3rd-world countries, like Russia, N. Korea, Pakistan, etc. Triple-checked everything, nothing was awry... think they made it up and used it as an excuse for more control
01:12 PM rdtsc-w: (not that Russia is a 3rd-world country, but ya know what I mean.)
01:12 PM bjorkintosh: 2nd world :-D
01:12 PM bjorkintosh: you know, these same brillIanT folks told me it would take 6 months to assign a static IP address to a PLC.
01:12 PM bjorkintosh: because it's considered "IOT" and they're looking into IOT at the moment.
01:13 PM rdtsc-w: I threw a server on the network and just assigned it an unused static IP - been working great for years.
01:13 PM rdtsc-w: (linux server of course)
01:13 PM bjorkintosh: bah. I should have done that.
01:16 PM bjorkintosh: as a matter of fact, that wretched experience was half of what convinced me to learn networking properly.
01:17 PM bjorkintosh: my experience with IT is that you tell them precisely what you want done and how. you don't ask them to think for you.
01:24 PM rdtsc-w: I went round-and-round with them over letting XP machines access the network shared drives. We have a few, and need to use them for really old customers. Alas, they won, and decreased productivity by blocking them all.
01:28 PM bjorkintosh: goodness. this sounds like an echo!
01:28 PM bjorkintosh: hahahaha
01:28 PM bjorkintosh: we had Mazaks running win95 which ... needed supporting. but no.
01:28 PM bjorkintosh: the machines were fine, but the OS... eh.
01:30 PM rdtsc-w: I get it... XP is a security hole... but these machines are powered on, used, then powered off. Resorted to funneling everything through virtual machines
01:31 PM xxcoder: wouldnt it be possible to just run old os in vm of some kind
01:32 PM rdtsc-w: indeed xxcoder that's what I had to do. Not ideal (no direct network access) but files can be moved from the host computer into the VM and vice-versa
01:33 PM xxcoder: indeed
01:33 PM rdtsc-w: (without IT being any-the-wiser
01:36 PM lcnc-relay: <skunkworks8841@> The powers to be wanted an external company come in and scan our network (this was like 6 years ago). The guy came in (windows server company) and could not find or get into anything on our network. Said that was bad and that we needed atleast 1 windows active directory server.
01:38 PM lcnc-relay: <vibram@> Hello, another quick question because I'm not sure about myself.
01:38 PM lcnc-relay: I have step/dir motor and driver on my lathe but I'm not very happy about the precision and repeatability.
01:38 PM lcnc-relay: If I add linear scale, am I able to do a closed loop? Even if it's position control? Because I was thinking closed loop was only in velocity control.
01:38 PM bjorkintosh: a rare SANFU in the wild: Situation Abnormal; Nothing Fucked Up!
01:38 PM lcnc-relay: Thank you for your help
01:54 PM rdtsc-w: vibram, is the stepper losing steps? if not, then it should be very precise and repeatable
01:56 PM Tom_L: https://forum.linuxcnc.org/49-basic-configuration/34750-stepper-motors-and-linear-scale-closed-loop-setup
02:06 PM rdtsc-w: A stepper motor which loses steps makes a "errrr" sound and can stop motion during a move - commonly caused by too much torque requirement, too fast acceleration, or too fast speed (torque drops off drastically at higher speeds)
02:06 PM lcnc-relay: <vibram@> Its a servo motor
02:06 PM lcnc-relay: <vibram@> And not loosing step
02:06 PM lcnc-relay: <vibram@> But there is certainly some play in the lathe
02:09 PM rdtsc-w: so, servo motor with some sort of encoder or resolver feedback - should be very precise and repeatable. Are you saying there is mechanical "slop" somewhere?
02:10 PM lcnc-relay: <vibram@> I think so yes but I struggle to identify what is the issue
02:16 PM xxcoder: checked the basics, like finding if anything is loose when it shouldnt be
02:16 PM xxcoder: ?
02:17 PM lcnc-relay: <vibram@> i tried to setup the backlash but it doesnt look consistent
02:17 PM xxcoder: I meant the hardware
02:20 PM rdtsc-w: could the lathe's ballscrews be worn? try to measure the backlash using a dial test indicator at different points along each axis - it is possible that the screws are worn unevenly
02:20 PM lcnc-relay: <vibram@> not stupid i will try
02:20 PM rdtsc-w: seen this on a recent episode of inheritance machining (youtube) - he ended up trying to make a new screw (did not go to plan)
02:21 PM xxcoder: indeed
02:57 PM JT-Shop: https://www.corvetteforum.com/forums/c3-tech-performance/4919697-update-on-my-daughter-s-murderer-guilty.html
02:57 PM JT-Shop: how horrible
03:08 PM lcnc-relay: <skunkworks8841@> oof.. I can't imagine.
03:14 PM xxcoder: indeed
03:56 PM bjorkintosh: i'm going a bit nuts here. I know you guys all have heaps and heaps of random cables and plugs all over the place. how do you keep it sane and organized?
03:57 PM xxcoder: its easy for me.
03:57 PM bjorkintosh: even coiled and zip tied they somehow manage to merge
03:57 PM xxcoder: I don't.
04:00 PM xxcoder: also, that is how you get more cables. ;)
04:00 PM rdtsc-w: don't get them wet after midnight... they multiply!
04:01 PM rdtsc-w: (re: gremlins - or maybe it was "they turn evil" - I forget)
04:02 PM bjorkintosh: both.
04:02 PM bjorkintosh: haha. yes. I keep them dry.
04:03 PM xxcoder: I love optipess https://www.reddit.com/r/comics/comments/2ww75x/poor_mogwai_optipress/
04:04 PM JT-Shop: labeled boxes
04:06 PM rdtsc-w: nice :)
04:06 PM bjorkintosh: labeled boxes. hmm. I'll have to get a whole bunch.
04:06 PM bjorkintosh: but that might work.
04:07 PM bjorkintosh: https://www.autonomous.ai/ourblog/20-creative-diy-cable-management-ideas
04:07 PM bjorkintosh: aha!
04:10 PM rdtsc-w: just a note about adhesive zip tie anchors - the adhesive is good for about 2 years. after that - no-go.
04:21 PM bjorkintosh: I just use the cheap nylon zip ties.
05:07 PM JT-Shop: roycroft, got your staples out?
06:04 PM Tom_L: bjorkintosh, don't get too organized or you'll never find anything
06:04 PM bjorkintosh: hah!
06:05 PM bjorkintosh: well, whenever I pick up a ball of cables and shake furiously enough, something comes out.
06:06 PM Tom_L: gives you a great feeling of winning a battle
08:09 PM -!- #linuxcnc mode set to +v by ChanServ