#linuxcnc Logs

Jul 15 2024

12:56 AM Deejay: moin
02:12 AM pere: can someone who understand french have a look at <URL: https://hosted.weblate.org/translate/linuxcnc/linuxcnc-docs/fr/?checksum=097ae7bf58cd9874&sort_by=-priority,position > and possibly add the missing comma in "<<sub:ini:sec:trajunités machine>>" where I suspect it belong?
04:21 AM JT-Cave: morning
04:39 AM Tom_L: morning
09:01 AM t4nk_freenode is now known as t4nk_fn
09:31 AM -!- #linuxcnc mode set to +v by ChanServ
01:11 PM * roycroft is back from another wonderful fair
01:12 PM xxcoder: fun I guess
01:14 PM roycroft: it was
01:14 PM roycroft: kind of hot, but not too hot
01:14 PM roycroft: and the booth that i camp at is mostly in the shade
01:14 PM roycroft: the camping area is completely in the shade
01:15 PM xxcoder: nice indeed
01:25 PM roycroft: but now i'm back home, it's hot here, and i have to go cut some rebar off a slab and grind it down before my new shed arrives
01:26 PM roycroft: and tomorrow i'm back at work
01:36 PM Unterhaus_ is now known as Unterhausen
01:37 PM Unterhausen: I want to raise my jointer to be the same height as my tablesaw, but according to google I'm the first person that ever wanted to do that
01:44 PM roycroft: i usually try to set my other machines and tables/benches that are near the tablesaw about 3-5mm below the height of the table saw
01:44 PM roycroft: that way anything can be an infeed/outfeed table
01:45 PM * roycroft needs to unpack the car, then get into some hot, heavy, sweat-producing clothe so he can go grinding for a while
01:52 PM Unterhausen: how do you change the height?
02:47 PM jpa-: depends on what the machines stand on
02:47 PM jpa-: at the local hackerspace we have a battery-operated electric table on wheels, it is quite handy
02:51 PM Unterhausen: both machines are on mobile bases. Have to see how easy it will be to put the jointer on 1" blocks. It has occurred to me that it might be better to put spacers on top of the cabinet under the jointer.
04:55 PM JT-Shop: https://github.com/jethornton/mesact/issues/105
05:34 PM Tom_L: mesact won't open on 12 with 2.9.3?
05:34 PM Tom_L: 2.9.3 shouldn't have anything to do with that
05:35 PM Tom_L: why doesn't he install it?
05:36 PM Tom_L: instead of running from cmd line
05:37 PM Tom_L: just pulled & ran from cmd line just fine
05:38 PM bjorkintosh: whoa. fingers are for manicuring, not typing commands! /s
05:38 PM Tom_L: making up for the rest of the day
05:39 PM Tom_L: his build date is 6/28
05:41 PM gonzo_: Bit of an open question... Running a mesa card via parallel port driving steppers. Getting some strange/random movement reported on the gui even when not actually moving the tool, even when the machine disabled. Any clues or known issues?
05:41 PM Tom_L: 7i90?
05:41 PM gonzo_: yep
05:41 PM Tom_L: cause that's about the only one :)
05:42 PM Tom_L: worn parport pins?
05:42 PM Tom_L: i recently replaced a cable
05:42 PM djdelorie: gonzo_: the *gui* is reporting movement, or the *machine* is moving?
05:42 PM Tom_L: but mine was just hanging there
05:42 PM Tom_L: he said the gui
05:42 PM Tom_L: not the machine
05:43 PM djdelorie: I know but I've seen the opposite
05:43 PM Tom_L: which doesn't make sense
05:43 PM gonzo_: if understand correctly, using stepgen, the mesa card is told where to drive the steppers and it just reports that positio back once it has stepped to that point. So confused where the reported move is coming from
05:43 PM Tom_L: unless it's on the virge of following error or some such similar event
05:43 PM gonzo_: djdelorie, it's just the gui showing movements. So I get following errors
05:44 PM Tom_L: is the accel too high per axis?
05:44 PM gonzo_: it drifts about with the tool stoppped.
05:44 PM djdelorie: in my case, random noise on the step/dir lines were causing the motors to creep, and I ended up reprogramming them for quadrature instead of step/dir
05:44 PM Tom_L: poor grounds?
05:45 PM gonzo_: all opto isolated
05:45 PM Tom_L: steppers, drivers, mesa cards all star grounded with shielded cables
05:45 PM gonzo_: how secure is the parallel comms? All checksumed etc?
05:46 PM gonzo_: the posn wanders even with the machine stopped and drives powered down. And system has been working solidly for years
05:47 PM Tom_L: old machine, reseat the pc boards, clean the connectors for a start
05:48 PM gonzo_: yep, all shielded cables. But opto isolated on all inputs and outputs. Even the jog is opto isolated
05:48 PM Tom_L: an opto is pooping out on ya?
05:48 PM Tom_L: just guessing at this point
05:49 PM Tom_L: open hal scope and watch a few critical signals
05:50 PM gonzo_: confusion is, when machione disabled, so all drives are disabled, then the only thing that is live is the PC and mesa. And stepgen is the only thing I can see reporting the move
05:50 PM gonzo_: not tried hal scope. Need to learn it.
05:51 PM Tom_L: i haven't used it much but alot of guys do
05:51 PM Tom_L: i'm fresh out of ideas, maybe PCW will chime in
05:51 PM gonzo_: managed to build the whole system without using it, somehow!
05:51 PM Tom_L: same here
05:52 PM djdelorie: even just halshow might help, if you see a signal blinking randomly
05:52 PM Tom_L: i was gonna suggest that but i don't think they respond as quick
05:52 PM djdelorie: true, but it's easier to learn to use ;-)
05:52 PM Tom_L: no doubt
05:53 PM gonzo_: well there are no actual lines to watch. It's the posiotion report from stepgen that I need to watch. Which is just data over the pll port.
05:54 PM djdelorie: you can watch the virtual "wires" from stepgen that carry that data, and the physical wires, at the same time
05:54 PM gonzo_: ah, that could help
06:02 PM jwash: For the version that comes with Debian with pre installed kernel drivers. Will it have the drivers for this card: https://imgur.com/WVbBX3Y.png
06:02 PM jwash: I can't find a decent Mesa card that will do a 4th axis and laser that's in stock
06:12 PM lcnc-relay: <roguish> good morning from the left coast.........cool here right now....
06:12 PM lcnc-relay: <skunkworks8841> we had about 4 inches of rain this weekend..
06:12 PM lcnc-relay: <skunkworks8841> going to get another pretty big storm today.
06:12 PM lcnc-relay: <skunkworks8841> Lots of tree's down - just not by me.
06:12 PM lcnc-relay: <roguish> skunkworks8841: what part of the country? state, city???
06:12 PM lcnc-relay: <skunkworks8841> near lacrosse wisconsin
06:12 PM lcnc-relay: <skunkworks8841> western wisconsin..
06:12 PM lcnc-relay: <roguish> ah, ok. my uncle and family were in Sun Prairie
06:12 PM lcnc-relay: <roguish> Madison suburb
06:13 PM lcnc-relay: <skunkworks8841> right
06:13 PM lcnc-relay: <skunkworks8841> neat - I have been to tormach a few times..
06:13 PM lcnc-relay: <roguish> ok, time for my ride..... bbl
06:13 PM lcnc-relay: <roguish> ok, back from my 27 mile ride. 1600' elevation gain.... 2 hr 17 min. way slow
06:13 PM lcnc-relay: <ffffrf> https://jauriarts.org/_matrix/media/v3/download/jauriarts.org/gOzQcMvvLrmxEAMKTQucImbQ/Blank_diagram-2.pdf
06:13 PM lcnc-relay: <ffffrf> Hello everyone, so with my spindle and encoder control for my sherline using mesa 7i96s giving me issues, I think I will need to rewire everything as I believe my issue stems from poor ground connections, and ground loops. I drew out a new map of my ground circuitry - would anyone please be able to take a look and see if it looks okay? My biggest question is: do things like step- have to go to GND on the steppergen pinrow in mesa or...
06:13 PM lcnc-relay: ... do they also go to frame ground?
06:13 PM lcnc-relay: <ffffrf> https://jauriarts.org/_matrix/media/v3/download/jauriarts.org/NhBwXzOoNiksydgctGLmTSrC/Screenshot_2024-07-15_at_2.46.23_PM.png
06:13 PM lcnc-relay: <ffffrf> I uploaded as a pdf and as a screenshot
06:13 PM lcnc-relay: <ffffrf> i am not sure i can even draw out my current shitty wiring, but as it stands both x and Z axis work, but spindle and encoder dont work, sometimes moving the isolated power supply to the mesa analog output causes spindle to move so i think a dangerous ground issue is the cause
06:13 PM lcnc-relay: <ffffrf> I bought ground bars so it should be easy to wire now
06:13 PM lcnc-relay: <ffffrf> +21 terminal
06:16 PM xxcoder: bridge just reconnected
06:24 PM Tom_L: ship hit it?
06:24 PM xxcoder: yp digital boat hit it again
06:25 PM xxcoder: we need to add digital dolphin structures to protect bridge ;)
06:31 PM lcnc-relay: <turboss> 🙂
07:43 PM lcnc-relay: <captainhindsight_.> ffffrf the Step + and - are differential signals, the Step- is not earth ground
07:43 PM lcnc-relay: <captainhindsight_.> so it should not be connected to the ground bus bar
07:50 PM pcw--home: Yes if not using differential signals the STEP-.DIR- pins must be left unconnected (connecting them to ground may damage the 7I96S)
08:17 PM Centurion_Dan1 is now known as Centurion_Dan
09:12 PM Centurion_Dan1 is now known as Centurion_Dan
09:22 PM lcnc-relay: <ffffrf> that cant be true, it was not working until I connected them all to ground
09:23 PM lcnc-relay: <ffffrf> A few days ago I could figure out why the steppers werent working and once i plugged all the dir-step- to ground it started working and someone said some word to describe why that is and i dont remember
09:23 PM lcnc-relay: <ffffrf> I can try to disconnect them from gnd now and see if they will keep working
09:23 PM lcnc-relay: <ffffrf> wait do you mean not connecting them to frame ground, or not connecting them to GND on the steppergen pin row?
09:24 PM lcnc-relay: <ffffrf> I have them connected to GND on steppergen pin row, not like frame/earth ground
09:34 PM lcnc-relay: <ffffrf> ugh i need to go read more lol so confused now, dont get why its working at all
09:36 PM lcnc-relay: <ffffrf> so when powering my mesa with a 5v PS, should the ground of mesa and the ground of the 5v instead go to the ground bar, instead of gnd and vcc of the p5v supply going both to the mesa
09:43 PM lcnc-relay: <ffffrf> im gonna restart from scratch
09:44 PM lcnc-relay: <ffffrf> one motor at a time
09:54 PM xxcoder: ow
09:54 PM xxcoder: https://hackaday.com/2024/07/15/nitric-acid-is-the-hot-new-way-to-pick-locks/
09:54 PM xxcoder: andypugh_: do yours resist that?
09:54 PM xxcoder: hopefully I remember who made unlockable one right
09:54 PM xxcoder: *unpickable
10:23 PM lcnc-relay: <ffffrf> I tested disconnecting any of the dir- and step - from GND and the motor stops working
11:14 PM rdtsc is now known as rdtsc_away
11:41 PM lcnc-relay: <ffffrf> welp i broke my sherline spindle controller lesson learned lol
11:41 PM xxcoder: what happened?
11:42 PM lcnc-relay: <ffffrf> not sure, it wasnt just now, it was something around the time of hooking up the encoder, but i wasnt gettiing the spindle to run so i opened up the box and the min nob of the controller was clearly burned out
11:43 PM lcnc-relay: <ffffrf> I had really convoluted wiring and everything close together and touching so wouldnt e surprised if i shorted something or god knows what. Going to restart everything from scratch and try to do it right
11:49 PM lcnc-relay: <ffffrf> sooo upset