"dear sir,
thanks for your informations
i want one more information regarding plasma how they cutting start and stop with cnc.
is there any separate attachment with torch.
Waiting for your kind reply at your earliest convenience.
Regards.
Yours faithfully,
Paramdeep Singh
Hello Paramdeep,
You must have watched one of my CNC Stomp Pad Tutorial Videos that used CNC Plasma cutting. I had this same question when I first built my CNC Plasm Cutter. Here is what I found out:
The CNC Controller that you use will have a relay in it that activates the Plasma Torch. You wire this relay over to your plama cutter to turn it on. Generally it wires into the same circuit that activates the torch. Think of circuit that is closed when you press on the plasma torch trigger. The relay is doing essentially the same thing. It makes the plasma cutter think you have the trigger depressed.
Some commercial CNC Plasma Cutting systems on the market actually use a mechanical switch instead of wiring into the Plasma Cutter. They have a mechanical mechanism that activates and acts just like your finger to depress the Plasma Cutter Torch Trigger. This is versitile since you can rig it up to just about any plasma cutter.
How this is activated is through G-Code. To be more correct, it is through an "M-Code" which is a specialized type of G-Code that activates cnc machine functions. There are torch on and torch off m-codes in your program that activate and deactivate the plasma cutter.
I hope that helps, if you have any more questions, shoot me an email.
Thanks,
Ivan Irons