One other question - is there any way I can auto intent all of the code? I hate not being able to do that!
Ok, one thing that needs improvement from doing a practical test is that the carriage needs to move a touch slower, and ideally it needs more torque.
Just wanted to drop a note here for anyone wanting speed control with a single unipolar stepper using a pot. I started my research journey here and this was a great resource. This thread seems to pop up on google when searching for pot controlled stepper, pololu a4988 and Uno