Originally Posted by
SeanMurphy265
I see, I've been wondering why there was a need to open the machine, and not using the cnc port. I've never checked the voltage on the full voltage pin.
It's really a safety issue. You don't want to pull full arc voltage and full arc current outside of the box, except via the torch connections. By limiting the current at the CNC port, you don't have to worry about a possible full current arc between the pins if there is something conductive around them like moisture or metal dust. This is the same reason they want you to put the board inside, too. You only want to bring out low voltage and current to connect to other things. It's sad that there is such poor communication between companies. I understand that CandCNC have been burned by the failure of a voltage divider in another import brand. I wonder if both parties can come to a better understanding. Everlast could ship them a machine to test and certify for use with their equipment, and sales would go up for both of them. As it is, this is an acceptable solution, for now. I really like the addition of the current probe, too. Having the current available to the control is a big plus. You can use that to have the travel speed adjust on the fly, so the cutting should be much more consistent, even on poor quality metals, or uneven thicknesses, and features that effect the current used. Perhaps that is a feature that will one day be included in plasma units made for CNC like the PP60C.
Long arc, short arc, heliarc and in-the-dark!
Senior Member
Posting Permissions
Reply With Quote