Hypersensing questions

Good! Worst thing you'll have to do is pulse the torch before you run the job, no big deal. Post cut air flow clears it before you go to probe.

Yes, mode 1 with N=10.

Its good that the resistor llows you to clear the torch short by pulsing the torch.
Just reiterating. The purpose of the pulse torch button. Its to clear the torch of water...
Also the test ohmic sensor button is designed to test if there is a short in the torch tip. Pressing it should light up the ohmic button if its shorted.
So the workflow should be:
1. check sensor
2. Pulse torch if ohmic enabled
3. Run your job.

Everybody's environment will be different but on my torch with my town water + additive I got reliable sensing on a change of 0.1 volts before adding the resistor.

tommylight wrote:

This looks more promising, and the "sometimes wet torch" can be fixed by adding a hal comp that will check the voltage at the probe signal and if it is higher than say 15v it would issue a pulse for the torch. Much better than having to do that manually.

Tommy, that is a good idea.
I did think that being able to pulse the torch via gcode might be handy too.
plasmac.torch_pulse_start seems to be the pin to toggle.
I think I'll leave that for others because I don't want to hack into plasmac too much.
To hook into a pin that is in use, you have to use or2 in hal so that the existing plasmac function OR your new function can trigger plasmac. Where I've done this, I've used unlinkp in my connections.hal first to avoid hacking any of the standard plasmac hal files.

phillc54 wrote:

I did suggest a while back that we could do an automatic ohmic test before the first pobe on a job and if it is active the pulse the torch.

Maybe it wouldn't hurt to pulse the torch on the first probe on a job regardless but only if ohmic is enabled.

So on first probe, do ohmic test, if probe is active, move to max Z height (to avoid any nasty piercings) and pulse the torch.

Its kinda what I do but on my machine, there is a knob to enable air flow so sometimes I'll flick it on to give it a good purge.

Yeh I drilled a hole this morning when I should not have with the pulse. So go to max Z would be required.

I was actually going to ask you about adding a couple more fields for the component. Maybe there was an ini setting or a configurator option to "Use Hypersensing with THCAD-5" that allow setting the mode. eg HYPERSENSE=1 (mode 1)
If set, allow editing the upper and lower thresholds and display the THCAD ohmic voltage. Hide the low threshold if mode 1
But wait until we get this working and I get the component tidied up.