When it works its great, but I have broken about 4 bits now when the Z will not register. So maybe i'm doing something wrong or there is an issue with the probe itself. Issue. Setup probe, connect the sensor (magnet) to bit, test to make sure probe is registering in the troubleshooting page by touching bit to plate. Position the X and Y, and start probing every so often the Z axis will not stop after touch, and if i'm not quick enough to abort, needless to say its a broken bit. Is there a correct distance that the bit should be above the build plate?