I finally got my power cart and RPC hooked to the series 1 boss 5 and there are some issues. x and y movement is great but it looks like the z-axis stepper is bad. when I try to jog or step it just vibrates back and forth. also the z limit switches are bypassed and one is cracked in half. and worst of all, when I started the spindle itmakes a nasty clatter. I can turn the spindle about 5 degrees back and forth like backlash. I can hear it hitting hard up inside the top at each side of the rotation. please tell me this is simply a sheared key a picture of the switch layout on thez axis would be good too
thanx