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CNC stops mid move and loses position.

Posted: Fri Feb 10, 2012 8:22 pm
by Eric Barnett
I'm running a proven program and for some reason the machine randomly stops in the middle of a move. I have to hit cycle start to get it to move again, which is bad enough. What makes things worse is that it doesn't execute the move correctly when I restart it. It loses its position or something and veers off into the part.

Can anyone shine any light on this for me?