I’m trying to dip my toe into the world of z axis probing. I have a probe/switch connected up to the probe and ground connection on the GRBL AIO, but I’m having trouble with its operation. If I try to use G38.2 to 0 the z axis, when the probe/switch touches the bed UGS goes into Alarm 3 instead of a normal (from what I’ve read) probe response. I’ve also tried inverting $6 and using a normally closed switch (which to me confirmed that I had my wiring correct), but again once the probe hits the bed it goes into alarm state.
Does anyone have any experience with using a probe on the GRBL AIO or could offer some advice? Cheers. Chris.