Well the price isnt that big of a deal, I was wondering if there was an attachment that I could put on a lower cost stepper, even if it was less that $100 that would be fine.
I dont think torque is an issue, ive done some experiments and i should have plenty. I just want to design my device to not fail, and I was excited by the idea of tinkering with position feedback.
As far as a zero home position, I have done a little with break beam sensors. What is a good strategy for getting an accurate home position, what about with and without a hard stop? I have two opposing blades sliding linear along a track.
What about having a two thru holes lining up and sampling the adc after each pulse of the stepper, looking for the the point at which the adc starts to decrease?
Appreciate the help.