Originally Posted by
metronorth
bluesman;
The research that I have done so far seems to indicate that the pitch error comp value is applied proportionally to the distance that the axis moves from one point to the next. Since I have a very linear error, which I have measured carefully throughout the length of the stroke, I am hoping that I can set a minimum point at the extreme X- end of the axis travel, a reference point and a Maximum point at the extreme X+ end of the axis travel. If my understanding is correct, the error correction amount will be added in proportionally from one comp point to the next and this will then correct for the pitch error in my lead screw. I agree that the laser thing is the ultimate solution to a problem like this but since I can measure easily to .0001" on the machine, I am confident that I can correct the error to at least .0002". If you know of another parameter in the control that can scale the movement of the X axis by a certain factor, I would be just as happy to go that route but I am unable to find this parameter.
Thanks for your input.
Glenn