sandman92k wrote: pully teeth count is 20
it may be too late but it finally dawned on me why you only told us only one pulley teeth number - you are using a belt instead of a threaded rod.
in this case the leadscrew pitch setting in stepconf would be :
1/ (The diameter of the sprocket times 3.14159)
pulley teeth would be 1:1
microstep and motor steps per rev would need filling out properly
This would get you close - The diameter setting probably would need to be adjusted a bit to get it exact as it should be the MEAN diameter but it's easier just to experiment I think.