Plasma cutting with servo System in LinuxCNC

Hi everybody,

I need your help already. I want to design a plasma cutting machine with linuxCNC in the core of the system. The mechanics parts are very big and I think that it need design a servo system with AC servo Motors. now I don´t know how begin this task. What drivers I have choose?What AC servo motor I have choose? How I can control the plasma? What cards I need for control?

Thanks

I built a floating torch holder with a micro switch to "touch off" on the material top.

Can you explain me more about your system touch off and micro switch? Can you show me any picture? I have begun to calculate the mass.

(#1 pierce height, #2 pierce delay, #3 cut height)

Ok, thank you. I have saw your pictures and your O sub for touch off. Only I dont understand how it work with respect to #1 #2 #3 variables? That values are this? can you explain me please?

Ok, I understand but I do not know what role each of these variables.

Thanks John now I understand

Other question. How connect the THCAD to my plasma? What version 10 or 300 I need to my system?I am a beginner with respect to plasma cutting system.