#linuxcnc Logs
Jul 14 2025
#linuxcnc Calendar
01:41 AM lcnc-relay: <meisterdippel@> moin
03:04 AM lcnc-relay: <travis_farmer@> Morning
04:45 AM Tom_L: morning
05:02 AM Deejay: hi
05:06 AM -!- #linuxcnc mode set to +v by ChanServ
05:50 AM NetPipe: https://github.com/netpipe/GCODE-Tools/tree/master/Engraver/STL2GCODE
05:50 AM NetPipe: it even kinda works
05:51 AM NetPipe: im not sure how good yet tho
07:35 AM lcnc-relay: <vibram@> Hello, I just chatted with someone who told me that the EL5101 (encoder module from beckhoff) can be switched between 16 and 32 bits
07:35 AM lcnc-relay: <vibram@> Does someone did the trick around here by any chance=
07:35 AM lcnc-relay: <vibram@> * chance?
08:15 AM Tom_L: vibram, try a search on the linuxcnc site
08:15 AM Tom_L: brought up a few links
11:47 AM JT-Shop: hmm the solenoid should work it ohms out at 1.0
11:49 AM * JT-Shop ponders the issue later... nap time
11:53 AM lcnc-relay: <.le_potato@> https://cdn.discordapp.com/attachments/970073761770512384/1394358481019994313/20250714_184220.jpg?ex=68768507&is=68753387&hm=f9840654a6e4183c56662ccbd7004a3ff2d07b0fa9a15bb0a2a67b861d03d938&
11:54 AM lcnc-relay: <.le_potato@> this is what infound for 5v
11:54 AM xxcoder: oh boy. spicy caps
11:54 AM lcnc-relay: <.le_potato@> looks pretty shit
11:57 AM lcnc-relay: <.le_potato@> it makes 180khz noise
11:58 AM xxcoder: the stuff on caps is likely stuff from inside it. it means you should replace those caps. of course, I could be wrong, and its just dirt and cleaning them up might make it work better
12:05 PM Tom_L: probably so but the caps aren't bulged out and generally they are before they leak
12:06 PM Tom_L: you can get a 5v 3? A SMPS for like $5
12:08 PM Tom_L: https://www.ebay.com/itm/123798965111
12:08 PM Tom_L: most of them use the LM2596 chip
12:09 PM Tom_L: https://www.ebay.com/itm/154476338022
12:09 PM Tom_L: if you need more current
12:10 PM lcnc-relay: <.le_potato@> xxcoder: those are glue on that 🙂
12:11 PM xxcoder: ahh ok. :)
12:11 PM Tom_L: noisy glue
12:15 PM Tom_L: if you don't need that much current those i've used those smaller ones with no problems
01:11 PM rdtsc-w: Can also use a 7V buck regulator, then follow that with a linear regulator to 5V like the LM7805 to remove +60dB (practically all) noise.
01:55 PM xxcoder: https://youtu.be/ohwI3V207Ts interesting. making mini pc cases
01:56 PM xxcoder: along with everything else
02:10 PM xxcoder: well it was interesting video lol
03:53 PM NetPipe: https://github.com/netpipe/GCODE-Tools/tree/master/Engraver/DXF2STL going to test it out soon
03:53 PM NetPipe: does back and forth
04:06 PM Tom_L: dxf is 2d
04:06 PM Tom_L: for the most part
04:06 PM xxcoder: I used3d dxf format for one of my old program
04:06 PM xxcoder: I liked obj better
04:07 PM Tom_L: it would be more like 2.5d
04:08 PM Tom_L: it can be forced but it is not optimized for 3d
04:08 PM xxcoder: it can be 3d yeah. I know, because I used it that way lol
04:10 PM xxcoder: I dont know if anyone uses it nowdays
04:12 PM xxcoder: obj version is more common, but also quite rare. fun lol
04:12 PM xxcoder: not surpised, its quite old progra,
04:17 PM JT-Mobile: Most of the parts I made were 2.5d
04:18 PM xxcoder: when I read my old source I dont even remember how it all works now lol. either format
04:27 PM roycroft: hello, folks
04:27 PM xxcoder: heyy decamped roy
04:27 PM roycroft: i am back from fair, and it was a very nice fair, other than being ungodly hot
04:27 PM NetPipe: https://github.com/netpipe/GCODE-Tools/tree/master/Engraver/modelConverter this one does all model formats
04:28 PM roycroft: my power distribution blocks arrived while i was gone, as well as my mcmaster order, and i think i now have everything i need to get the mini-router controller fully functional
04:28 PM roycroft: in fact, i have mains power working now, with the mains indicator lit
04:29 PM xxcoder: niiice. cant wait to see it moving lol
04:29 PM roycroft: and i'm about to make a mounting bracket for the 5vdc psu, after which point i'll be able to power up the rpi and mesa board
04:29 PM roycroft: i'm wanting it working soon myself
04:29 PM roycroft: and i'm getting pretty close
04:43 PM xxcoder: here, today is the only break day from heat lol. next 2 days going to be nasty. you?
04:45 PM xxcoder: (to roy)
04:52 PM Tom_L: 91F
04:54 PM xxcoder: oh boy. tomorrow will be 87f then 91f wed
04:54 PM xxcoder: today is nice and cool at 78f
05:41 PM NetPipe: put a gui on the model converter and made a macos release
06:20 PM lcnc-relay: <skunkworks8841@> oof - I just figured out that I stole the power supplies from the plasma..
06:20 PM lcnc-relay: <skunkworks8841@> wonder if I took pictures of it
06:21 PM xxcoder: 🏴☠
06:26 PM Tom_L: gonna try that emc1 board on it?
06:52 PM -!- #linuxcnc mode set to +v by ChanServ
06:54 PM -!- #linuxcnc mode set to +v by ChanServ
06:54 PM -!- #linuxcnc mode set to +v by ChanServ
06:57 PM -!- #linuxcnc mode set to +v by ChanServ
06:59 PM lcnc-relay: <skunkworks8841@> yes
06:59 PM lcnc-relay: <skunkworks8841@> it is all wired up (work I did with tormach)
06:59 PM lcnc-relay: <skunkworks8841@> I was going to boot it up and see if it saw the board.. but I have no power supplies
06:59 PM lcnc-relay: <skunkworks8841@> I think I know where they are.. Maybe pick them up tomorrow
07:00 PM lcnc-relay: <skunkworks8841@> I have the 5 and 24v here - but the 48v for the drives is at the other house
07:00 PM lcnc-relay: <skunkworks8841@> then I have to figure out how to wire it up 😉
07:01 PM lcnc-relay: <skunkworks8841@> Thought it would be nice to cut brackets for the tree house on it
07:01 PM roycroft: blech - i just had to disassemble a big part of my controller to modify the din bracket for my rpi
07:02 PM * roycroft is behind schedule, but should still be able to get the rpi and mesa boards powered up today
07:44 PM roycroft: well i have a login prompt, so that is good
07:44 PM xxcoder: nice
07:45 PM roycroft: but i do not know the username/password, and and not finding the defaults in the docs
07:45 PM xxcoder: admin and password didnt work?
07:45 PM roycroft: is that the default for that distro?
07:45 PM roycroft: this is not raspberry pi os + linuxcnc installed on top
07:45 PM xxcoder: not too sure also. I cant remember either
07:45 PM roycroft: it's the image with linuxcnc pre-instaled
07:46 PM xxcoder: ah may be different
07:46 PM roycroft: and it's been a couple months since i logged in, and i forget what the user/pasword are
07:46 PM roycroft: maybe i had to set it, and if so it should be in my password manager
07:47 PM xxcoder: maybe try blank password
07:47 PM roycroft: nothing there
07:47 PM roycroft: and my usual test passwords don't work
07:48 PM roycroft: it's not the end of the world if i can't figure it out - i've done very little configuration work on the machine and it's all in my changelog
07:48 PM roycroft: i thought, though, that there was a default when installing from the .img
07:49 PM roycroft: and if so, i'm sure i'd have left it at that until time to put the machine in production
07:50 PM roycroft: aha
07:50 PM roycroft: i guessed it
07:50 PM roycroft: cnc/cnc
07:51 PM xxcoder: wow thats not guessable lol
07:52 PM roycroft: so i've achieved today's goal
07:52 PM roycroft: mains power done and 5v power bus done
07:52 PM roycroft: next i'll get the 24v and 48v power buses wired
07:53 PM roycroft: then the wiring from the mesa board to the drivers, and the spindle controller wiring
07:53 PM roycroft: then it's time to do the wiring to to the machine itself
07:56 PM roycroft: there is a bunch of soldering coming up soon, which will slow things down a bit - to date i've only had to crimp
07:58 PM Tom_L: roycroft, cnc
07:58 PM Tom_L: usr/pass
07:58 PM Tom_L: it's on the webpage
07:58 PM xxcoder: when is soldering better than crimping?
07:59 PM Tom_L: no guessing required
08:00 PM roycroft: i guessed it already, tom_l, thanks
08:00 PM roycroft: i did not see it in the installation guide though
08:00 PM roycroft: and i think it's more that i remembered it than that i guessed it
08:00 PM Tom_L: if you forget: http://linuxcnc.org/downloads/
08:00 PM Tom_L: For both of these images:
08:00 PM Tom_L: User name: cnc
08:00 PM Tom_L: Password: cnc
08:00 PM roycroft: xxcoder: i use crimp connectors when attaching to screw lugs
08:01 PM roycroft: i solder when attaching to solder cups
08:01 PM roycroft: when doing things like joining two wires together, if they're in a control cabinet like i'm building it doesn't really matter if they're crimped or soldered
08:01 PM xxcoder: had to look that up. interesting
08:01 PM roycroft: in a vehicle it's almost always better to crimp than to solder
08:02 PM roycroft: the road and engine vibrations will weaken solder joints over time if the items are not firmly attached
08:03 PM roycroft: so if you're connecting a wire to a pcb in a vehicle, you'll likely need to solder it, since most components on a pcb don't take crimp lugs
08:03 PM roycroft: but if you do that you will also need to secure the wire to whatever the pcb is mounted on, to minimise asynchronous vibration
08:04 PM roycroft: all that said
08:04 PM roycroft: if you crimp wire lugs with a pair of pliers, it's *ALWAYS* better to solder than to crimp
08:04 PM * roycroft assumes proper tools and techniques
08:05 PM xxcoder: makes sense
08:09 PM lcnc-relay: <skunkworks8841@> I always solder. but that is just me.
08:10 PM lcnc-relay: <skunkworks8841@> no - I do crimp lipton connectors.. those would be kinda hard to solder
08:12 PM roycroft: if you have a good crimp tool and quality connectors, crimps are much faster and easier than soldering, and just as secure
08:12 PM roycroft: more secure in things that move/vibrate, as i indicated above
08:13 PM lcnc-relay: <skunkworks8841@> sure.
08:13 PM lcnc-relay: <skunkworks8841@> I just solder and heat shrink. Makes me feel better. Think it is because that is what dad did.
08:13 PM roycroft: but in most applications there's nothing wrong with soldering
08:13 PM roycroft: and some applications require it
08:14 PM roycroft: s/some/many/
08:14 PM lcnc-relay: <skunkworks8841@> right. I have not had a solder connection fail here. but I am not flying airplanes
08:21 PM roycroft: anyway, i'm happy with today's progress
08:21 PM roycroft: especially as i have very little energy today
08:21 PM Tom_L: <= mostly solder but crimp some
08:21 PM Tom_L: just weighing in...
08:21 PM roycroft: it was really hot at fair, and i was out in the sun way too much - that really drained me
08:22 PM Tom_L: skunkworks, if you were you wouldn't cut a single strand when stripping the wire
08:23 PM roycroft: i use good wire strippers that are the correct size for the wire
08:23 PM roycroft: it's extremely rare that i cut a strand of a stranded wire
08:24 PM Tom_L: i did find out somewhat by accident this is aviation test circuit wire http://tom-itx.no-ip.biz:443/~webpage/emc/small_probe7_small.jpg
08:24 PM Tom_L: and i have some white jacket 2 cond
08:25 PM Tom_L: the wire is all plated too
08:25 PM Tom_L: nickel? i dunno
08:25 PM Tom_L: http://tom-itx.no-ip.biz:443/~webpage/cnc/psu/wire.jpg
08:27 PM Tom_L: i used that on my limits etc
08:28 PM Tom_L: i wish i would have gotten more at the surplus
08:35 PM Tom_L: tin plating
09:25 PM roycroft: that is very commonly done with copper wire these days
09:25 PM roycroft: it's very expensive to separate the tin plating from the copper, which severely reduces the scrap value of copper
09:26 PM roycroft: which discourages the tweakers from cutting power/phone/data cables to scrap for meth money
09:27 PM roycroft: that's obviously not an issue in the aerospace industry, but in the underground utility industry it used to be a huge problem
10:01 PM lcnc-relay: <.le_potato@> tomorrow i power up my linuxcnc
10:02 PM lcnc-relay: <.le_potato@> and i have no clue how to calibrate it
10:20 PM roycroft: i powered up my controller today - the cpu side
11:32 PM lfluffywof is now known as fluffywolf
11:55 PM lcnc-relay: <meisterdippel@> moin