A manual Bridgeport with standard DRO fitted has a problem on the X axis readout. Basically, it doesn't work, tried swapping the connection at the back of the Heidenhain readout box, no difference. I should say, the Y axis does work ok in both sockets.
Cleaned out the slide and removed the traveller part, gave it a good clean, light is on and if you pass a piece of paper between the lamp and receiver, the digits flicker on the readout, and sometimes, if you keep moving the paper across the lamp, you can get a readout that will increase, from nought, to 85mm on one occasion.
When reassembled, nothing works..............
Any ideas what may cause this and how to cure it ?
Bob