3 wire proximity switch help

[JAZZCNC]

Make the switch point down, not sideways, and set the trigger pieces of metal just below it at each end of travel. It sounds as if this wouldn't give such accurate results but Jazz did some experiments a little while ago that showed this to work well.

Yes sorry I didn't look closely at the way you had the switches pointed. Neal is correct it does work very well I use the round type switch like this all the time.
Also saves the switches getting smashed by riding over the target rather than into end stops.

Keep the sensing distance small has possible for best accurecy.