Axis resolution advice

[cweeks]

I'm using Gecko drivers, so a microstep is 1/10th of a normal step.

I am going to use toothed belts, so my design choices are belt pitch, reduction before main drive belt, and main drive belt pulley. Steppers are 1.8 degree per step.

So you think I should base the resolution on half steps ? So lets say I want accuracy down to 0.05mm I just make each half step equal this ?

[Robin Hewitt]

So lets say I want accuracy down to 0.05mm I just make each half step equal this ?

50 microns probably requires an iron machine rather than aluminium and certainly not MDF

Why not find someone who has built a similar machine to the one you have planned and ask them what tolerance they can get out of it?

I don't have a laser or a router, I have a mill. FWIW I quarter step to 5 microns and hope for 10