Calibration done and ok but cuts are wrong

[WayneDollery]

Here have a look at this.

Calibration Test Procedure

I just wrote up a 6 page procedure, including a data sheet, to go along with a calibration test pattern I’ve been thinking about for a while. It is a comprehensive pattern that will check: Loss of stepper motor steps (primarily due to mechanical reasons) Incorrect stepper motor calibration Lack of perpendicularity between spindle/router and wasteboard It has circles and squares of various depths that allow the user to see if a measurement is off by a scaled figure (calibration issue) or off …

Also check out his you tube channel. It has a lot of good info.