Im putting together a new mill . Im using a C35 BOB . CNC4PC ( Maker of the Bob) has an xml file to go with the board. I installed it into mach . All the motors move fine except my X axis. Its very jittery and jumpy but thats not the strangest part. If I hit up itll go up and if I hit down it will move down but sometime when I hit up or down it will go the complete other direction . Not always..
So what do you guys think?