That is one heck of a lead! Can you not introduce some reduction of some kind to get higher resolution, if not you should be able to get higher resolution with servo's, depending on what type of controller you intend using, encoders with 10,000 counts and higher are available a 10,000 count used in quad mode gives 40,000 counts/rev so divide your lead distance (distance/rev) by 40,000 gives you the smallest move distance possible.
Al |