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I have/had KUKA industrial robots welding and paletizing bricks and sacks with sand, but they used a stripped down version of winxp.
And there are some robots here on this forum running LinuxCNC, just search for Scara robot. Also there should be some configs included with LinuxCNC so you can download the ISO, write it to a USB and boot from it, then run LinuxCNC in sim mode, some sim configs also have visualization so you can see on screen the machine moving.
As for toolpaths, it depends on what you need, some stuff can be done as simple as for a normal router/engraver/plotter, some might need specialized CAM software.

Occasionally, when using 'run' on the 'Test/Tune Axis' panel, for a back and forth test of 2", the movement at the end of travel oscillates around the endpoints. It isn't consistent, it will oscillate for a little bit and then stop oscillating and then start up again. I will try and post a video of this shortly. Any insight would be greatly appreciated!

This typically means that the P term is set too high in the local PID control loop.
For local control loops, P should be set to 1/(servo period in seconds), That is,
1000 for a 1 ms servo thread period or 500 for a 2 ms servo thread period.

The physical meaning of this P term setting is that any detected position errors
are corrected by the next servo thread invocation.

@ccatlett1984
Do not change the subject tittle as it makes it impossible to find when searching.
Thank you.

On the latest Linuxcnc images SPI should be enabled by default, this was an issue I had with the previous releases.
You specify which spidev mesaflash uses on the command line switch as the --addr, spix can be forced to use a particular SPI interface. The Linuxcnc docs for spix are a good read as it points everything out.

Many thanks to everyone who has offered some advice. I found a single stepperonline DM860T stepper driver on marketplace to test with and I now have the x-axis wired to my 7i96 for and moving, more-or-less as expected. I have the driver and Mesa card wired for differential inputs (dir +/- and step +/-). For settings, I'm simply using 5000/5000/10000/10000.

 

For what it is worth, the timing page in the stepperonline manual lists:

• dir must be ahead of pul by 5000ns
• pulse with not less than 2500ns
• low level width not less than 2500ns
  
  
  Two quirks I've noticed:
  1. The max limit for direction hold/setup in the 'Test/Tune Axis' option is 10000, rather than the recommended 20000.
  2. Occasionally, when using 'run' on the 'Test/Tune Axis' panel, for a back and forth test of 2", the movement at the end of travel oscillates around the endpoints. It isn't consistent, it will oscillate for a little bit and then stop oscillating and then start up again. I will try and post a video of this shortly. Any insight would be greatly appreciated!

RPI5 OS with 7c81 Interesting note:
- Leaving config.txt alone creates only spidev10.0 and hal_spix works fine, but mesaflash does not.
- Enabling spi in config.txt (dtparam=spi=on) creates spidev0.0, spidev0.1, and spidev10.1, hal_spix works fine, and mesaflash works fine with --addr /dev/spidev0.0

It would appear that hal_spix just looks for the first spi device, whichever one it is, or scans all of them; and mesaflash explicitly requires it to be on spidev0.0.

Peter? 

Hi, I'm trying to setup an ATC carousel with "style" I could have added an axis and use the standard probe basic marcos but the carousel component is something I would like to learn. 

1) I tried to feed the carousel.0.count-target straight as a pos-cmd getting a following-error, guess due to the sudden change in position, the motor moves a bit then stops with an error.
2) as a second attempt I've added a joint (without axis) to feed the new servo position from joint.N.motor-pos-cmd hoping that the servo would be controlled as an axis but motor.pos.cmd is an OUT pin..

At this point I'm lost, but don't want to give up using an axis, any suggestion?

Attached my actual toolchange.hal

Hello, I've seen industrial robots online that were used as 3D printers, for drawing, or for milling. Does anyone have a robot arm like this in use for such an application? Can this be done with LinuxCnc? Which LinuxCnc version would I need? Are there programs for creating toolpaths?
Thank you very much for any answers.
Hans

Hallo
Habe den Eingang für die Längenmessung Kontrolliert der ist OK.. Bin daraufgekommen wenn ich die Neuen Einträge in der INI Ausschalte dann ist der Bildschirm wieder Aktiv und die Maschine kann man Einschalten (Raute). Wenn der Eintrag wieder aktiv ist dauert es sehr lange bis die Visialisierung kommt und die Maschine kann man nicht Einschalten. Ein VWWersuch mit einen anderen Neuen Eintrag hat das gleiche Ergebnis gebracht. Was stimmt da nicht?
Gruß Hans

You need to go into gnome network manager and configure that interface, even if it just to get a dhcpd address.

I suggest you look up some information from Debian in your own language to find out more regarding networking.
This forum is regarding topics primarily related to Linuxcnc, whilst some generally Linux support is given you seem to be at a level where you require some more intensive help.
The RPi recognises the card and loads the driver, the kernel has created eth1 related to the NIC, the hardwork is done, now you need to find some more in depth knowledge regarding networking. As I said before the Linuxcnc image is basically Debian but with a realtime kernel built from the RPi GitHub repo and Linuxcnc installed.

Keyboard jogging has been added to Flex GUI, the test repo will be deleted shortly

gnipsel.com/linuxcnc/flexgui/controls.html#jogging

JT

Maybe brakes? Do the motors have brakes on them?
The brakes on motors work as a clutch, meaning a friction plate pressed by a metal plate with a spring when braked and an electromagnet to pull the metal part away from the friction plate when released.
Electromagnets are usually shown the same in schematics as relays, they are after all the same wounded wire.

I would probably use pncconfs discovery option so pncconf knows about the
additional stepgens so you can configure the B axis.
 

You should be able to use pncconf to setup your spindle
The firmware does not affect the spindle setup as the analog
spindle setup would be the same regardless of firmware.

A possible exception would be if you used the breakout board
to generate the analog spindle control voltage, but this would
really only make sense if you needed two analog outputs.
 

Hi everyone, I hope you’re doing well.

While going through the electrical diagrams of my machine, I noticed something I don’t fully understand. The schematics show a clutch on each axis. Could someone explain what exactly this means and what role the clutch plays? Is it connecting or disconnecting the motor from the ballscrew, or something else?

I’ll attach the diagrams for reference.

The spindle part I’ve already figured out, since I found out how the connections and control signals are set up. Right now, I’m working on counting all the inputs I will need to make sure the Mesa board I choose has enough capacity. Fortunately, the linear scales output 5V signals, so that part looks straightforward too.

Thanks a lot in advance — I’d really appreciate your input and experience on this.