Hall Effect Tachometer mounted one on the Lathe and one on the Mill.
Lathe Setup with my DRO.
Mill Setup. I mounted the readout in the same enclosure as my VFD. The Sensor is mounted thru the top of the Belt housing and the magnet is glued to the top of the belt pulley. Direct readout for all high speed operations and calculated for all Back Gear operations. The enclosure was reclaimed from a toasted UPS unit.