Hi all

I am running Mach 3 using KTA 261 controllers from Ocean Controls in Melbourne. I currently have these running in 1/16th mainly because that's how they were shipped. <g>

They are driving 8TPI 1/2" ACME.

My question:
Is there an inverse relationship (or any other for that matter) between the level of microstepping and the maximum RPM that any given motor / voltage / current combination can produce ?

In other words if I change to 1/4 step do I get four time the maximum RPM and what does this do to my torque ? I expect my accuracy will reduce since I am not moving in such fine steps but a 1/4 step on a 1.8 degree motor doing 8TPI would be negligible for the basic wood routing I am doing.

Thanks

David