I've made it to the pronterface steps, assembly complete, firmware updated etc...
When I tested my endstops, X and Y worked fine, but the Z sensor does not trigger. No light, and the software doesn't detect metal in front of it.
I've verified the wiring (Black to D32, Blue to ground, Brown to DC 12-24v power) and there is no light or trigger under any circumstances.
Any ideas? Is this just a DOA sensor?
OK, fixed my own problem. Everything was wired properly, but the mains were not fully seated. This was the first test that required the 24 volts to be active. Once I got the mains fully seated it started working as expected
same problem, but with mains (24 V source) connected!