Originally Posted by
Roxy
There isn't enough detail here. Is it going to the back far right corner? If you use a V option on the G29 such as G29 n 3 V it will not zig zag and the last point probed should be as far from the origin as possible. Can you redo it with a G29 n 3 v and report back?
Yes, it is on the diagonal position opposite to HOME, I use 3 point grid N3V
It would be helpful to do a G28, a G29 and then a M114 to see where the printer thinks it is at. Then do a G28 and another M114 and see where it thinks it is at. That will give us some hints about what is going on.
G28, G29, M114 result is X190 Y175 Z1.65, when I hit G28 now, it goes straight into the wall. So I did a home X only, the x carriage moves approx 10mm away from the previous position (roughly 200 actual pos.) but the M114 reports X0
That would make sense. You told it to go there. Not to home there. The homing code is special. It just starts heading there waiting for a limit switch to get pressed. Then it backs off and goes back towards the switch at a slower speed. But you are not giving it a home command. And my guess is if you look, the limit switches are pressed when you go to G1 X0 Y0
You are right.
This is new information. What happens if you turn Z_SAFE_HOMING off? I don't know what code path it would follow (because I've never had an issue like this), but I can believe that the Z Probe firing could impact the X and Y homing.