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I went out to the plasma and tested, and the arc ok sign does not come on in mach3 when the torch is lit. So now I have some cable/board investigation to do. Thanks Les

I think there is a pre set value of the distance between each touch off in the post. In my post it was 500mm. So I changed it to 10mm

ok, I turned on the thc just after m03 but then it stops all motion and does not continue the program...

maybe I should ask this question in the mach3 forum, but I think the knowledge is here too.

Does the thc on/off button work when the "Allow thc up/down control even if not in thc mode" is checked? If I want to turn it off directly after m05

I was wrong again....
The code worked fine, but it doesn´t matter if the z value is positive or not. It will randomly not raise the torch to safe z

modified the post and now it looks like this

80 M06 T1 F800 (Plasma, 1.5 mm kerf)
N0090 G00 Z15.0000
N0100 X64.3162 Y210.1509
N0110 G28.1 Z12.70
N0120 G92 Z10.0
N0130 G00 Z13.0000
N0140 G92 Z10.0
N0150 G00 Z12.5000
N0160 M03
N0170 G04 P0.2
N0180 G01 Z12.0000 F200.0

now I know exactly what the problem is. It is when the cut ends and the torch is in a -Z value the z axis dont move. Can I fix the problem like this: when the torch touches the material it will normally write Z0, but the solution will be to write like Z10 instead. In that way it will always be at a ...

I disabled the THC and the problem was gone. Now I have to modify the post in some way...

I think im going to turn the thc of directly after m05 and turn it on directly after m03. Maybe it is a easy way to rule it out, or not.

Yes it seems so. But when I put a delay after the cut, it shouldnt be any noise issue at least. But it does not raise the z axis. I wonder if it is the thc who stops the z axis from moving...

function OnAbout(event) ctrl = event:GetTextCtrl() ctrl:AppendText("Plasma MP1000-THC -ZRef post processor\n") ctrl:AppendText("Use with floating head (auto touch off) ONLY\n") ctrl:AppendText("Modal G-codes and coordinates\n") ctrl:AppendText("Comments enclosed wi...

It seems that it does not raise the z axis when it is below Z0 at the end of the cut. Anyone else that have the same problem?
I have attached a file, if anyone can find a problem there

I slowed down the z acceleration and speed, but that didnt help. And sometimes it raises to the correct hight.... strange. The z ref trigger seems to be working fine also. Can it have something to do with the height it stops cutting at? If it is a minus value for example at the end of the cut then i...

ok, thanx. I will check the settings =)

yes it moves in mach3, but not in real life =)

Hello, I have a problem. When I make a cut it should do a G00 Z15 move after M05, and it does that on the screen, but the machine does not move in real life. And this does not happen all the time either. I have a proma thc and I wonder if its stopping the Z movement or something. This is not always ...