Andy Pugh wrote: > The usual sort of encoder is not desperately convenient for mounting > on a machine tool spindle, as such applications generally require a > sizeable through-hole. > This is why I used 3 gear tooth sensors on the bull gear of a Bridgeport head. A small hole drilled in the face of the gear was used for the index pulse. I had VERY limited space inside the head for these sensors, but was able to fit them in. Many lathes have better access to the bull gear, so it might be easier to do.
See http://pico-systems.com/bridge_spindle.html for some pictures and additional info. The sensors are about $6 each at Digi-Key, and are intended for use inside automotive transmissions. Jon ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
