[kamaldeepsing]

Hi,

I made a oxy fuel cutting machine using stepper motor and Mach3 .I am having a problem with torch on/off and pierce delay. Generally mach3 is programmed,,, first the torch gets on and then the pierce delay timer start. Whereas I want it to work vice versa. As I am using the mach3 plasma set for oxy fuel cutting, so for a pierce the metal should be preheated and then the torch should be switched on. I mean I made the machine in a way the ignition of the torch is manual. And oxygen pressure valve (which is required for cutting) is connected to mach3.

How do I configure it.?

[WSS]

I think you need to have a P code in front of the M code that turns on the cut valve. Something like this:

P30 (pre heat delay)
M03 (signal to cut valve on)
P01 (pierce delay)

Maybe someone who has more cam experience than me will jump in....

WSS

[Torchhead]

I think you need to have a P code in front of the M code that turns on the cut valve. Something like this:

P30 (pre heat delay)
M03 (signal to cut valve on)
P01 (pierce delay)

Maybe someone who has more cam experience than me will jump in....

WSS

Close:
G04 P## (## is in seconds)
M03
G04 P1 (pierce delay)

codes that a good POST processor in a CAM program should put in for you