I don't think your calcs are correct. Is the axis belt driven. i.e. the moving part is directly attached to the belt.
My X axis is belt drive 5mm pitch. With a 3.6:1 belt reduction. 200 step stepper running 1/8 microstepping. effectively a 1600 step stepper.
This is the calculation for my setup:
The Drive belt runs on 26T pulleys each end so.
5mm pitch * 26T = 130
1mm / 130 = 0.00769230769
0.00769230769 * 3.6 reduction = 0.02769230768
0.02769230768 * 1600 steps = 44.307692288 steps per mm of travel.
OR 0.02256mm per step.
You don't need the belt circumference for the calculation, but you do need the number of teeth on the pulley the belt is riding on.
Hope this helps.
Regards Terry..... |