Another plasma component...

Looks nice Phil.

Hello! Plasma component looks really nice! IMHO it's a big improvement in the process of cnc plasma integration into a LinuxCNC world since Toma THC. Tests in simulation show that everything works fine, however sometimes i've got an error "Material too high for safe traverse program is stopped..." So i've tried to look through the Plasmac source code, but still can not understand what is the reason for a such kind of behaviour.
Info:
I've git cloned phillc54/plasmac repo, and then compiled it as a RIP package as well as a deb. Then i've tried both versions of debian - wheezy and stretch, but still nothing.

And one more question. As i'm also tried to connect pins to a real machine, i am also keep getting error messages "bottom limit reached
while THC moving down program is stopped......" and it doesn't matter NC or NO is the switch. It's probably connected with the problem mentioned above, because it also includes a Probe Switch Handler logic.
What am i doing wrong?

This is just a guess as I've not used this yet but I suspect you may need to touch off the Z axis manually in the MDI with G92 Zx where x is the material height. Think of this as part of your axis configuration.

eg. Jog down until probe switch is triggered , then jog up until it turns off them do the G92. I just watch the light on my probe proximity sensor when doing this from my wireless pendant.

Tommy, best of luck. Its shame the Proma 150 has such a poor reputation in the Mach3 world. I don't think that reputation is deserved.

I suspect his has been driven by one of its competitors and crappy performance from Mach3. Tell me does the Proma 150 have relays for its signals inside? I've heard it said it is held back by slow relays but I don't believe this is correct.

As far as a rotary axis goes, its rather simple on tube where it does not need a THC as the torch height is fixed above the tube and more complex on square/rectangular sections but you need a THC to lift the torch over the corners as they rotate.

You need to think in terms of folding the tube out flat and then it becomes a simple XY job. This coping calculator shows how this is done. I tested this years ago and it is possible to get highly accurate results with a cardboard template and an angle grinder! 90 degrees is easy but 45 degrees results in a deeper notch which is hard to get right. Sheetcam has a module for a wrapped rotary axis....

I think in time, Proma's biggest competitor might become a functioning LinuxCNC system.. Anyway I'm off to play on my machine this morning and to try a few ideas... and get a voltage feed into LinuxCNC.