Hypersensing with THCAD - better way to do ohmic sensing

tommylight wrote: Need more time, 24h just not enough.

Lol that has been the story of my life for the last three years! So much to do, so little time.

thefabricator03 wrote:

tommylight wrote: Need more time, 24h just not enough.

Lol that has been the story of my life for the last three years! So much to do, so little time.

You lucky .....
In the last 20 years i can count the days i slept over 6 hours ! Not many of them.

tommylight wrote: You lucky .....
In the last 20 years i can count the days i slept over 6 hours ! Not many of them.

Ha its good to know that things will get better Lol

Just noticed, this topic is getting HyperSensitive ^TM ....

tommylight wrote:

stivemaster13 wrote: It does not cause a delay in operation and does not allow a drop of water to remain in the nozzle!

It does, about 2 seconds for every probe, so some of us doing about 2400 probes per session can not afford that. Pretty sure Rod and Stefan had more than that.

I can not understand you ? What does it take 2 seconds? What I have written takes a maximum of 40 ms at the UCCNC. On Mach3 it takes 50ms.
This trick works even on our transformer sources, to which we have added an interruption of the cooling cycle, which generally lasts 15 seconds!

I have another question - does anyone have observations (ie the graph of the voltage change) that PlasmaC (or actually THCAD) sees when the burner touches the material during cutting? And is this being handled in any way, like an emergency?
I ask in terms of what I went through while developing our THC.

stivemaster13 wrote: I can not understand you ? What does it take 2 seconds? What I have written takes a maximum of 40 ms at the UCCNC. On Mach3 it takes 50ms.
This trick works even on our transformer sources, to which we have added an interruption of the cooling cycle, which generally lasts 15 seconds!

The hypersensing method we've devised (which thefabricator03 is not yet using) seems to have solved the problem and its in use by quite a few now on several different brands of machines.

stivemaster13 wrote: I have another question - does anyone have observations (ie the graph of the voltage change) that PlasmaC (or actually THCAD) sees when the burner touches the material during cutting? And is this being handled in any way, like an emergency?
I ask in terms of what I went through while developing our THC.

When I first started with plasma and linuxcnc before Plasmac, I did lot of halscope plots and had the torch hit the material many times. I don't recall observing any behaviour that was measurable. I did collect a lot of data and analysed it statistically. For that particular machine I measured 7.53 volts per mm of height. At 1.75mm cut height, I guess it wold hit the table on a fall of about 13 volts.

With Plasmac it has never hit the table.

You could disable downward height adjustments if the torch voltage fell by say 7-10 volts from the original sample. That would let the torch rise to cut height if it sorted itself out.