I am in the process of building a sub-micron resolution positioning system based on the OpenStage design developed by Rob Campbell. The system he designed built around the QuadStepper driver board, which has been retired. Is there a similar product available from Sparkfun?
If not, I have found a supplier that still has some in stock, and so can order one if necessary. In this case, I would like clarification on one point: when it says that it can drive bipolar motors up to 1 A, does this refer to 1 A/phase or 1 A overall?
Thank, J. Bonhomme
Hi John, and thanks for posting!
We don’t currently have anything quite like the [Quadstepper unfortunately. The Quadstepper had a 1 amp per phase current limit on the driver chips.
The closest thing we have now would be the [Big Easy Driver and it’s based on a very similar driver IC as the Quadstepper. You could connect four of those and roughly have the same thing as the Quadstepper. Additionally, the Big Easy can drive motors at up to 1.4-1.7 amps per phase without a heatsink and up to 2 amps per phase with a heatsink .](https://www.sparkfun.com/products/12859)](https://www.sparkfun.com/products/retired/10507)