Blow back plasma torch start timing problem

Hi All,

I am in the process of converting our workshop homebuilt plasma table from MACH3 to LinuxCNC.
So far all the basic things work except for the plasma torch timing. The particular torch & inverter we have
needs a minimum of 15 second delay from the end of one cut to the start of the next. In MACH3 we have a
M3 macro that takes care of that. Is there a feature in QtPlasmaC / plasmac that can do something similar.?
I can do it using the retry logic - but that usually wastes a lot of time between cuts.

Scott.

It is almost certainly pssible, but probably not particularly easy to set up.

Why did you decide to switch from Mach 3 to LinuxCNC?

Agreed, OP all you need to do is do a find/replace for m3 and replace it with g4 p15000 m3 (15 sec in millisecond)

G4 and m3 may need to be on different lines.

If that works then edit your post to include that.

Main thing is that MACH3 seems to have some problems blending moves together.
Our table is multi function and currently it is setup with a LED laser cutter head and at the speeds needed for that we could better see the lack of blending.

The second part is that it would be nice to have all the cut-recover features from plasmac.

The timing problems are probably due to combining a ebay no-name torch with a aliexpress no-name inverter, and then unplugging the HF start from the inverter as it caused too much interference. But it runs good enough for our use when the torch gets its needed recovery time between starts.
I'll consider modifying the post, but I'll also take a look at the plasmac component to see if I can tweak it to do it like our MACH3 M3 macro does.