I know this has been discussed before, but I am just having a hell of a time. I believe the encoders to be 250ppr . I know that they recommend higher ppr , but these came with the mill and I have had them close it seems but not there. The calculator I am using says 10,000 steps per inch. When I do that they are off. The only way I could get close is by putting the step multiplier at 1. If I put it at 2500 and step multiplier at 4 its close. It will be spot on one measurement , but Then it will be .002 short on a smaller measurement. Sometimes it seems like it will be over on one and under on another. What am I missing.
2:1 ratio
250 encoder lines per revolution
5 pitch (.2000 inches per revolution )
Calculator says 10,000 steps per.
I am using an edgefinder and calipers.
The x and y motors and encoders were replaced about 10 years ago. I am going from the manual with the encoder count. I would only assume that they would use the same as the book so that it matched the other encoders .
I have the chance to get a big job, this is urgent. lol