Strange! So your situation looks like this:
- You click home to initialize the printer
- 2 axis move all the way to the endstops
- 1 does not move at all, but makes sound
- After that, you can move all 3 axis down
- But when you move up, 1 stops to soon
Which axis is refusing? I guess that it is Z?
Do you have a probe connected to Z_MIN?
If so, try to disable the probe and see if that works.
Can I take a look at your pins.h and Configuration.h?
- You click home to initialize the printer
- 2 axis move all the way to the endstops
- 1 does not move at all, but makes sound
- After that, you can move all 3 axis down
- But when you move up, 1 stops to soon
Which axis is refusing? I guess that it is Z?
Do you have a probe connected to Z_MIN?
If so, try to disable the probe and see if that works.
Can I take a look at your pins.h and Configuration.h?