#linuxcnc Logs

Sep 12 2025

12:47 AM lcnc-relay: <meisterdippel@> good morning
03:35 AM lcnc-relay: <lucid.nonsense@> @irc_liberachat_fluffywolf:jauriarts.org: Check out Facom
03:40 AM lcnc-relay: <lucid.nonsense@> Apparently they're selling them under USAG brand now, Italian made USAG 280 T/SE7
03:44 AM lcnc-relay: <lucid.nonsense@> As a general rant, I find it very difficult to know which tool brands are good at any given moment. Depends who's bought who and whether they're just slapping the name on inferior products.
03:45 AM lcnc-relay: <lucid.nonsense@> Bought a set of Britool allen keys in 2005 and they are still the best I have.
04:21 AM lcnc-relay: <lucid.nonsense@> meisterdippel@: Any progress on the PI machine?
04:34 AM Tom_L: morning
04:55 AM -!- #linuxcnc mode set to +v by ChanServ
05:09 AM -!- #linuxcnc mode set to +v by ChanServ
05:11 AM lcnc-relay: <meisterdippel@> lucid.nonsense@: what you mean ?
05:11 AM lcnc-relay: <meisterdippel@> the mesa stuff ?
05:12 AM lcnc-relay: <lucid.nonsense@> Yeah, you were talking about getting velocity and encoders going
05:12 AM lcnc-relay: <meisterdippel@> ahh, i need to order pcb's first to run in velocity
05:12 AM lcnc-relay: <lucid.nonsense@> Ah right
05:13 AM lcnc-relay: <lucid.nonsense@> My 7c80 and 7c81 arrived yesterday as well two cm5s and carrier boards
05:15 AM lcnc-relay: <lucid.nonsense@> Need to get some psus for the mesa boards
05:15 AM lcnc-relay: <meisterdippel@> i useing pi4
05:18 AM lcnc-relay: <lucid.nonsense@> Ok, hopefully the LCNC images will work ok with the carrier boards, the gpio seem to be more configurable than a standard pi
05:19 AM lcnc-relay: <meisterdippel@> cm4 and pi4 are almost the same, no problem with standard images
05:22 AM lcnc-relay: <lucid.nonsense@> Cool
05:34 AM Deejay: hi
06:12 AM lcnc-relay: <lucid.nonsense@> Hi
06:53 AM rdtsc-w: lucid.nonsense I'd say the rip4 is just barely enough.... rpi5 is much better overall
06:54 AM rdtsc-w: rpi5 is just as fast as a mini-pc
06:57 AM lcnc-relay: <lucid.nonsense@> Cool
06:59 AM rdtsc-w: just, whatever you do... don't accidentally do a sudo apt update && sudo apt dist-upgrade... anything that will cause a kernel rebuild will totally bork these custom images
07:02 AM rdtsc-w: see https://forum.linuxcnc.org/38-general-linuxcnc-questions/56437-rpi5-decided-to-make-backup-script-for-boot#330642 :)
07:02 AM rdtsc-w: (forum very slow right now)
07:10 AM lcnc-relay: <lucid.nonsense@> Thanks, yeah figured that might be dangerous
07:11 AM JT-Cave: interesting it's safe on a pc but not safe on a rpi
07:13 AM lcnc-relay: <lucid.nonsense@> Isn't it some LCNC specific config that makes it dangerous?
07:18 AM rdtsc-w: it's that the rpi .iso uses some custom packages which don't currently seem to recompile well at all
07:30 AM rdtsc-w: well of course there is more than one way to skin this cat... I'm talking about specifically using the rpi4/5 .iso on the download page. It may be possible to build a custom Debian12 + rt_preempt kernel, but it's quite involved.
07:31 AM rdtsc-w: p.s. must use rpi-imager to burn to a microsd card... balena etcher definitely does not work
07:34 AM lcnc-relay: <lucid.nonsense@> Ok, rufus no go either?
07:35 AM lcnc-relay: <lucid.nonsense@> I'll be using nvme though
07:35 AM rdtsc-w: not sure about that, you may be the first :)
07:37 AM JT-Cave: I use Disk Image Writer in Linux
07:38 AM rdtsc-w: wonder if nvme is more fault-tolerant? power off the rpi on sd (without shutting down cleanly) and risk filesystem corruption
07:41 AM lcnc-relay: <meisterdippel@> i have never shutdown a rpi, no problem and i have two media-server with sd-card running since 5 years disk without problems.
07:42 AM lcnc-relay: <meisterdippel@> but my homeassistant server with cheap SATA-SSD (16Euro) had a broken file system
07:43 AM rdtsc-w: also have an rpi in a home automation capacity, and it has lost power a few times... can tell it is not happy afterwards... luckily there are frequent OS updates, so quick to recover
07:49 AM lcnc-relay: <lucid.nonsense@> I have a home assistant yellow running off nvme, not had any issues so far despite some powercuts and brownouts, should put it on a ups really
08:01 AM lcnc-relay: <lucid.nonsense@> https://postimg.cc/gX49Fbw6 have a poe injector coming tomorrow
08:05 AM rdtsc-w: looks like a fun build
11:37 AM lcnc-relay: <die_limonade@> Does it make sense to choose an rasberry pi 5 over the rasberry pi 4? Or are there any alternatives in that price range?
12:09 PM lcnc-relay: <lucid.nonsense@> 16GB pi5 is approaching minipc territory I suppose
12:12 PM Tom_L: RPI5: http://tom-itx.no-ip.biz:443/~webpage/cnc/Rpi5/Rpi5_histogram2.png
12:12 PM Tom_L: 8GB
12:12 PM lcnc-relay: <skunkworks8841@> 8 is more than enough
12:12 PM Tom_L: absolutely
12:12 PM Tom_L: 5 would be my definite choice over a 4
12:13 PM lcnc-relay: <skunkworks8841@> agreed
12:14 PM lcnc-relay: <skunkworks8841@> I have used both - 4 is really at the limit... 5 seems to have headroom and the latency is way better
12:31 PM rdtsc-w: sw, neat way to import dxf's, hadn't thought of that... was importing directly, then selecting all primitives and doing a shapebinder on them - guess it's about the same number of clicks either way :)
12:35 PM rdtsc-w: FreeCAD 1.0.2 also has a tube primitive, but it always has an error symbol, even though it seems to work ok... ended up making the tubes from sketches - don't need any surprises down the road
12:36 PM Tom_L: 2 circles, or a circle with a wall offset?
12:37 PM rdtsc-w: 2 circles (in radius)
12:38 PM lcnc-relay: <skunkworks8841@> That is something that I have always found with freecad. You can draw something up - then come back days later and there will be a problem with one or 2 of the objects..
12:38 PM lcnc-relay: <skunkworks8841@> but usually not show stoppers - just annoying..
12:38 PM Tom_L: easy way in some cad for a bent tube is a circle with a S (bend) line and a wall offset
12:39 PM Tom_L: then the circle follows the S bend
12:39 PM rdtsc-w: luckily these tubes are for the articulating arm project, so except for some fab and weld, are all straight :)
12:41 PM Tom_L: http://tom-itx.no-ip.biz:443/~webpage/cnc/practice_drawings/problem32.jpg
12:41 PM Tom_L: that follows a line path
12:42 PM lcnc-relay: <skunkworks8841@> but you have a real cad program.. 😉
12:42 PM Tom_L: you're saying freecad isn't real??
12:43 PM lcnc-relay: <skunkworks8841@> did i say that? I don't think I did..
12:43 PM Tom_L: it should be able to extrude following a path
12:43 PM lcnc-relay: <skunkworks8841@> 😉
12:43 PM xxcoder: definitely possible. I used a tutorial on making curved shape
12:43 PM xxcoder: I forgot how as usual but yeah
12:44 PM rdtsc-w: Rhinoceros3D is a great modeller, nice for surfaces... used it a long time ago
12:45 PM lcnc-relay: <skunkworks8841@> I have to say - freecad has done everything I have needed it to do so far.. But that probably isn't saying much
12:45 PM Tom_L: probably would for most 'hobby' uses
12:46 PM lcnc-relay: <skunkworks8841@> rotary smp had to use something other than freecad for his motor castings - because he couldn't get the fillets to work correctly..
12:46 PM lcnc-relay: <skunkworks8841@> iirc
12:46 PM lcnc-relay: <skunkworks8841@> but he has certainly done some pretty complicated crap in freecad
12:46 PM xxcoder: yeah I always do fillets and chamfer last. those suck
12:46 PM Tom_L: catia even burps on fillets if you don't do them right
12:48 PM lcnc-relay: <lucid.nonsense@> Had to use catia in uni, hated it with a passion, long time ago though
12:48 PM Tom_L: http://tom-itx.no-ip.biz:443/~webpage/cnc/practice_drawings/x_problem3.jpg
12:48 PM Tom_L: bends in x and y
12:49 PM Tom_L: err x & z?
12:49 PM rdtsc-w: kids' slide v1.0? :)
12:49 PM Tom_L: i liked it better than sw
12:50 PM Tom_L: sw will import more though
12:52 PM lcnc-relay: <lucid.nonsense@> I keep downloading freecad and then starting fusion every time I need to make anything
12:54 PM rdtsc-w: heheh every time I've tried Fusion360, it changed its license, trying to force me to buy a license... shady
12:54 PM lcnc-relay: <skunkworks8841@> I did stuff in fusion.. but they kept taking stuff away and I am cheap
12:55 PM Tom_L: i try to get things to earn their cost at least
12:55 PM lcnc-relay: <lucid.nonsense@> Not sure I should admit to being on an education license for 8 years
12:55 PM Tom_L: back when i got my cad cam it paid for itself in the first year
12:55 PM lcnc-relay: <lucid.nonsense@> But I'm not selling anything made with it
12:55 PM lcnc-relay: <skunkworks8841@> did that with ms office for years and years
12:56 PM Tom_L: it's old but it's 'free' now
12:56 PM rdtsc-w: freecad needs help from the libreoffice team :)
12:57 PM lcnc-relay: <skunkworks8841@> it has come a long ways from when someone showed it to me at wichita linuxcnc gathering.. year and years ago
12:58 PM Tom_L: i didn't even realize it was a thing back then
12:58 PM rdtsc-w: . <--- was thiiiis big back then
12:58 PM lcnc-relay: <skunkworks8841@> 2002ish
12:58 PM lcnc-relay: <skunkworks8841@> (its first release)
12:59 PM lcnc-relay: <skunkworks8841@> I tried it quite a few times and gave up. If the sketch could not do basic tangents and such - it would not work for me.
01:01 PM lcnc-relay: <skunkworks8841@> I made a replacement part for a vacuum cleaner which was all arcs and such - and it actually worked. SO - I started actually using it
01:04 PM lcnc-relay: <asicresisteur@> rdtsc-w: I bought a student license for 5 axis machining 🤓
01:06 PM lcnc-relay: <lucid.nonsense@> I really love sculpting in vr, wish someone would make a vr cad app, stereo vision and grabing and walking around the model makes a huge difference
01:06 PM lcnc-relay: <asicresisteur@> would be great indeed, maybe if blendercad gets popular
01:09 PM lcnc-relay: <lucid.nonsense@> https://youtu.be/h3ORLHxSL5M?si=RpRFz6rPYPZGrMpc
01:10 PM lcnc-relay: <lucid.nonsense@> Would be cool to avoid the poly sstage and just working solid/nurbs/surface
01:10 PM lcnc-relay: <lucid.nonsense@> * stage and just work in
01:10 PM lcnc-relay: <lucid.nonsense@> Not my vid by the way
02:23 PM lcnc-relay: <skunkworks8841@> just took 100lbs of aluminum to recycling..
02:44 PM Tom_L: what's it worth a pound now?
02:53 PM JT-Mobile: Yo
02:54 PM Tom_L: what's up?
02:54 PM JT-Mobile: The Old No. 102
03:01 PM Tom_L: pizza looks good
03:01 PM JT-Mobile: It is great
03:01 PM * xxcoder steals pizza
03:07 PM JT-Mobile: JT passes a slice to xxcoder
03:08 PM xxcoder: lol thanks. 🍕
03:13 PM Tom_L: you goin to the track this weekend?
03:14 PM JT-Mobile: 20th
03:14 PM Tom_L: ahh i thought it was coming up soon
03:31 PM lcnc-relay: <skunkworks8841@> 44 cents I think
03:31 PM JT-Mobile: 45?
06:50 PM * JT-Shop has a lot of lead to take to the recycle place
06:51 PM xxcoder: now you are unleaded? ;)
06:57 PM JT-Shop: maybe when I get rid of all the lead
06:57 PM xxcoder: :)
06:57 PM Tom_L: JT-Shop, are those bike batteries with the sponge between the plates any good?
06:58 PM Tom_L: i made a post hammer with some of the lead i have
06:58 PM JT-Shop: for an e-bike?
06:58 PM Tom_L: no motorcycle
06:58 PM JT-Shop: never seen one
06:59 PM Tom_L: sealed AGM battery
07:00 PM JT-Shop: ah yeah they are the best
07:00 PM Tom_L: https://www.amazon.com/YTX20L-BS-Lithium-Motorcycle-Battery-YTX20L/dp/B07F95G2W5
07:00 PM Tom_L: or such
07:01 PM JT-Shop: I've always used the stock battery on my BlueWing
07:01 PM Tom_L: he thinks he may be overcharging his battery
07:01 PM Tom_L: it is stock
07:01 PM Tom_L: well i'm not sure, i haven't looked yet
07:02 PM JT-Shop: https://www.amazon.com/Yuasa-YUAM320BS-YTX20L-BS-Battery/dp/B000H7DXBO
07:02 PM JT-Shop: overcharging with a battery maintainer?
07:02 PM Tom_L: yuasa are the only lead acid i'm familiar with
07:03 PM Tom_L: he may need to get a better maintainer i dunno
07:03 PM Tom_L: i'm not that familiar with those
07:03 PM Tom_L: he just got it back today for round two of the fork seal leak
07:04 PM Tom_L: they overtightened the oil filter and blew the ring out of it too
07:04 PM Tom_L: i'm kinda wondering who they hire
07:05 PM JT-Shop: https://www.amazon.com/CTEK-Maintainer-Desulphation-Temperature-Compensation/dp/B00CD44RQO
07:05 PM JT-Shop: that's the best battery maintainer
07:05 PM Tom_L: ok
07:08 PM Tom_L: time to eat...
07:08 PM Tom_L: later
07:08 PM JT-Shop: k
07:09 PM Tom_L: he's not here but i'll have him check what battery it is
07:19 PM JT-Shop: the local honda dealer has terrible service dept and I only went there once
07:31 PM lcnc-relay: <skunkworks8841@> aluminum was $.4 a pound here
07:31 PM lcnc-relay: <skunkworks8841@> lead was like .44 or so
07:32 PM lcnc-relay: <skunkworks8841@> I have not cashed it in yet
07:32 PM JT-Shop: I have a lot of lead and aluminum to recycle
07:33 PM lcnc-relay: <skunkworks8841@> I have a lot of stuff to recycle
07:33 PM lcnc-relay: <skunkworks8841@> the next 1.5 ton load will be steel
07:33 PM lcnc-relay: <skunkworks8841@> after that will probably be cast
07:33 PM lcnc-relay: <skunkworks8841@> (Old machines and such)
07:34 PM lcnc-relay: <skunkworks8841@> engines
07:34 PM lcnc-relay: <skunkworks8841@> looks like there is a couple of 4 cylinder wisconsin engines
07:34 PM lcnc-relay: <Mister Wallace> Don’t suppose you have a monarch 10EE tail stock hiding in there…
07:34 PM lcnc-relay: <skunkworks8841@> some 2 cyclinders too
07:35 PM lcnc-relay: <skunkworks8841@> just the one on my 10EE
07:35 PM lcnc-relay: <skunkworks8841@> you can't have it
07:35 PM JT-Shop: lol
07:35 PM lcnc-relay: <skunkworks8841@> it has a broken lock lever need to fix.. dad tried to braise it.. but it broke instantly. after watching abom - I might try it again
07:36 PM JT-Shop: cast steel?
07:37 PM lcnc-relay: <skunkworks8841@> I am not sure.. cast something
07:37 PM lcnc-relay: <skunkworks8841@> Mister Wallace: https://www.youtube.com/watch?v=wORTJX6RVkM
07:37 PM JT-Shop: I got some rods that weld cast and they work great
07:38 PM JT-Shop: almost dribbles the weld onto the part
07:38 PM lcnc-relay: <skunkworks8841@> stick weld?
07:38 PM JT-Shop: yup
07:38 PM lcnc-relay: <skunkworks8841@> I have seen some do that.
07:40 PM JT-Shop: I've welded all kinds of cast parts with them
07:41 PM lcnc-relay: <Mister Wallace> One day I’ll find a tail stock… just missing that and a compound. And the tachometer, but that’s never happening.
07:42 PM lcnc-relay: <Mister Wallace> https://jauriarts.org/_heisenbridge/media/matrix.org/ruJFSfZNRFcuBveeWBaLUmzs/qVBhrk6Q844/IMG_3650.jpeg
07:42 PM lcnc-relay: <Mister Wallace> (Cross slide acquired but not pictured)
07:43 PM lcnc-relay: <skunkworks8841@> https://photos.app.goo.gl/12fUi9oqYgqQsvxa9
07:43 PM lcnc-relay: <skunkworks8841@> this 10ee was dropped off a truck
07:44 PM lcnc-relay: <Mister Wallace> Mine was used by students for 50 years, which is worse
07:44 PM lcnc-relay: <Mister Wallace> ?
07:44 PM lcnc-relay: <skunkworks8841@> lol - this one is a 42 iirc
07:52 PM lcnc-relay: <Mister Wallace> Welllll if you ever find a tail stock for a square dial lmk
07:53 PM lcnc-relay: <Mister Wallace> And if you need any xenon tubes let me know
07:53 PM lcnc-relay: <skunkworks8841@> If you watch the video.. I converted to solid state..
07:53 PM lcnc-relay: <skunkworks8841@> using linuxcnc of course..
07:53 PM lcnc-relay: <Mister Wallace> I got to that part right as I sent the message
07:54 PM lcnc-relay: <skunkworks8841@> we never got all of the motor/generator stuff. we ran it off of an scr drive (1000 rpm limit) until recently
07:55 PM lcnc-relay: <skunkworks8841@> now it does field weakening and everything.
08:36 PM lcnc-relay: <skunkworks8841@> https://www.youtube.com/watch?v=7wqtYoxUE-E
09:10 PM lcnc-relay: <pink_vampire@> my 3D printed gantry is starting to take shape..
09:10 PM lcnc-relay: https://i.imgur.com/xYpne5u.png
09:11 PM xxcoder: thats cool
09:16 PM lcnc-relay: <pink_vampire@> 731g of plastic
09:16 PM lcnc-relay: <pink_vampire@> 14mm thick
09:16 PM xxcoder: solid?
09:17 PM fluffywolf: I've been occasionally watching nate-from-the-internet's 3d printed lego castle... that's a fuckton of plastic.
09:17 PM lcnc-relay: <pink_vampire@> yes, 100% infill
09:18 PM xxcoder: infills isnt designed to go to 100%, I'd have used 1000 perimeters but cool :)
09:19 PM fluffywolf: (short summary: 3d printing a lego castle set.... scaled up to life-ish size)
09:19 PM xxcoder: I bet. I sure cant afford that,
09:21 PM lcnc-relay: <pink_vampire@> I buy filament in 5-10 pack
09:23 PM fluffywolf: grr
09:24 PM lcnc-relay: <pink_vampire@> https://i.imgur.com/AC8NylJ.png
09:24 PM lcnc-relay: <pink_vampire@> this is the part in the slicer
11:53 PM lcnc-relay: <lucid.nonsense@> Apologies if this has already been shared, but enjoyed this vid on motor control https://youtu.be/ujofKWmGChw?si=FDfic193iEgYokEb