Hi ...
For answer your questions I can say the following:
1.. Depends of you expectative about process.. The best way to you buy a equipment is if it will fit and reach your aims.
2.. I'd rather hand control..
3..Normally hand control are easier than foot control in controlling the current. I don't think so that it will be easy device to make in TIG process with CNC. You have to take in consideration many things, for instance: Stand off control, positioning of the torch and so on.
4.. To you convert one equipment to plasma you have to get one OCV up till 80 VDC so that the TIG equipment won't supplay that voltage level. The process' equipment can supplay it is Stick. It gotta about 80 VDC at OCV, so that you can convert one stick equipement in plasma equipament, but you can't forget the accessories you have to get for plasma. Reciculator for example, it is a important one to welding plasma process... |