Chinese HF-start CUT-40 plasmacutter used for CNC setup. Novel design using added ground wire to tip, making it a pilot arc torch. Cuts 5mm thick steel plate in the video. Movement is a bit slow because of mechanics constructed from existing old parts. Run with ebay chinese 3-axis stepper board from parallel port with MACH3. Inputs include limit switches, emergency stop and z home switch for automatically finding contact of torch to plate to be cut. Here’s link to some more info:
http://www.machsupport.com/forum/index.php/topic,20076.0.html
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