DIY | Z Probe for CNC Machine | Auto Zero Tool

Easy way to build a probe tool for Z-axis and Setting up the auto zero in Mach3 to my homemade CNC machine.

Auto zero script download link:

[IHHAY]

HELP. I had to start over after the hard drive in the PC that was running the CNC died, I had a backup but after reinstalling it i still had to reinstall the Z axis auto zero, from GuruBrew. I configured the first wire in ports and pins to Probe Port 2 PROBE to Pin 15 an input pin and the the second wire to ground. And Active low. Saved, shut down and restarted. He says to prove the connection go to Diagnosis and the Digitize light should light when the two wires are touched together, but, the light is lit if they are touched or What am i doing wrong?
Thanks

[vikvanderhaeghen]

24mm ... @5:06 You need basic caliper reading study.

[AsitShouldBe]

Just in case you are using a chinese motion controller
Replace ZProbePos = GetVar(2002)
with ZProbePos = GetOEMDRO(802)