Just for kicks, I wanted to see if the Stepper Drivers and Motors would actually be able to do resolutions higher than 8 Micro steps.

I aimed a laser pointer at the top of the z-stepper, I placed something to reflect the beam back to a wall. So the setup look like this.
YouTube - Laser Setup

I then set the stepper driver to no micro-stepping and watch the laser spot move.
YouTube - Test with no Micostepping

I then set the driver to 8 Microsteps and here is what I saw.
YouTube - Test using 8 Microstepping

I then set to 64 Micostep and here is the result.
YouTube - Test using 64 Microstepping

Then on 64, I took 1 step, and used a pen to mark where the laser point was, and then moved again, I did this a few times (see pics below.)

To my surprise the Driver and Stepper can actually do an resolution of 1/64 per step!

Ingenious! :cheers:

Very interesting and enlightening! Marvelously illustrative and creative home-made lab technique! Excellent Video presentation!

I commend you for this exhibition sir! Thanks for furthering our knowledge.

CR.

Ingenious! :cheers:

BTW it was your website that convinced me that I could actually build an CNC machine in the first place!
Thanks Hoss!