ATM A super accurate way to measure microsteps

[jherrero@videotron.ca (Juan Herrero)]

Hi
I was going nuts trying to measure and adjust the variances between the
microsteps in my Altaz controlled motors. I had 4 drinking straws taped end
on end. Attached to the stepper motor shaft. The end of the 3' straw
comptraction, would only move a couple of millimeters per microstep. It was
very difficult to take the measurements. And then...Mel decided to improve
his software from 10 to 20 microsteps! How could I measure all those tinny
steps ? Well yesterday I saw the light! Laser light that is. I went to
RadioShack and got their cheapest laser pen pointer. Taped it to the motor
shaft. And projected the beam on the  wall. I can now measure microstep
movements 20mm big! TA DA!

Thanks  
Juan