Another plasma component...

Thank you for advice, but Ive tried already some linux dists with recompiled kernels, and still the best latency results I had only on 3.12 - 3. 15 kernels(like Ubuntu 12, debian 7 and etc. )

phillc54 wrote:

My guesses as a non cutter:
Anti Dive should be around 90% - 95%
Void Sense is not working correctly so leave it off.
PID P is basically the reaction speed so probably start at 10 and work your way up.
PID's I & D probably leave at zero.
Height Per Volt only comes into play for on the fly height adjustment and the not working Void Sense. Approx 0.1 for metric or 0.004 for imperial.

Just reporting back this was useful and solved my recent problems. Somehow PID P was set to 25. I have never knowingly touched this value. Setting it back to 10 worked well. I cut a couple of hundred small parts from leftovers and it all went well. I did check the height sensing and it was perfect as well.

I am also back to good cut quality.
After checking through everything and adding some new consumables my cuts are good with the numbers Phill suggested.

phillc54 wrote:

Sorry, I think that 25 may have been me...

You will note I politely said somehow, not somebody!

Is it possible for me to duel boot my cnc PC. I have everything working how I want but would like to try a fresh clean install of Linux and Linux cnc with the new plasmaC.

JTknives wrote:

Is it possible for me to duel boot my cnc PC. I have everything working how I want but would like to try a fresh clean install of Linux and Linux cnc with the new plasmaC.

Personally I would just swap the HD for a new SSD then if it all goes wrong you can put the old one back in at any time.

Phill,

As you know, I've had to do quite a bit of work to get the Fusion 360 post processor working with PlasmaC. I've really worked on the small hole cutting more than anything. I have now managed to get the post processor to create a lead-in arc from the center of a hole similar to what Hypertherm recommends. I think, based on the plasmac_gcode_arcs.py file you posted in the past, that you could accomplish this same thing (i.e. you have the variables needed for the calculations). If you want to put this into plasmac, I'll share with you the way that I did it.

Here's a small snippet of the code it creates (for reference, the kerf width is 0.043" and the hole size is 0.25"):
Steven