In both X & Y, they run further than what I measure. @ 20" it travels 1/16"+ past the 20". How can I re-calibrate?
What controller/control software are you using? The principles are in the document attached, but if you are using Openbuilds control it has a calibration wizard. Alex.
The longer the measurement, the more accurate you will be. Use a meter/yard stick if you have one and a really fine point V bit.