bdesh123,
It sounds to me that you have your pulses per unit set wrong. Since you did not say I am assuming you ae speaking of mach2??? You will need to get your ppu set so that when you command a 1" or MM move the machine actually moves that much measured best by a dial indicator. You will also want to do a "stress" test with several moves that are supposed to end up back where you started to see if you are losing or gaining any pulses. Once that is doen your dro's will read correctly.
Mike
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