Why go to such trouble with a slotted disk, if you can buy a ready made encoder, ball bearings, 3 years warranty? Wagner Donald L Burdette wrote: > > Wagner Lipnharski wrote: > > >I always wanted to suggest to do a surgery at the > >motor, and transform it into a pulse generator. > > Wagner - > > Why go to such trouble, when a simple slotted disk will provide the same > effect? > > Don