EDIT2: Here is a playlist with all the videos: https://www.youtube.com/playlist?list=P ... XeXNw3WjM-
Here is one video where I show the flashing (no audio): https://www.youtube.com/watch?v=8OgZRxwiS_g
and here is the video of the behaviour I described in the first post. Homing only moves the Y axis and only moves about 10 mm and then stops, if it did not hit the endswitch. If it DOES hit the endswitch, it tries to go further and crashes the head into the endswitch and you can hear the motor skipping steps. I then turned off the machine.
Sorry for the bad audio.https://www.youtube.com/watch?v=nHUOLZ4MsCI
What I didn't film: If you move the axis with the Control Printer -> Move Axis menu, it will stop at the endstops and not go further. so the motors and the endstops work as intended, but not during home.
EDIT: I made another small video (https://youtu.be/CL_4pUN5CO4
) to show the endstops working. Because I don't have a tripod, I didn't show the Y axis, but it behaves EXACTLY the same. So does the Z axis. The endstops are properly installed and working.