NordicCNC's build log

[BobTSkutter]

The proximity sensor at the top of the Z-Axis appears to be very close to the grease nipple on the bearing block. Could the grease nipple cause interference with the sensor?
Adjustable bolts looks like a clever way to adjust the trigger point but are the bolt heads big enough for the gantry limit switches to "see". The sensor is round and I think you're using set screws which appear to be the same size as the sensor with the hex indent in the middle. It looks to me as though the hex indent is exactly where you want the sensor to trigger. Would using a conventional hex head bolt instead of a set screw be better?
Regards
bob