Your printer suspects that everything is not in perfect order with your end-stops.
Wiring issue
Make sure there is not a wiring-issue with the X/Y end-stop on the mini RAMBo board.
Go to the LCD menu -> Calibration -> Show End stops. Once you are in this menu, manually click on the X/Y End-stops one by one. During this procedure, monitor if there is an appropriate change on the LCD.
Once pressing X end-stop = X shall change from 0 -> 1
Once pressing Y end-stop = Y shall change from 0 -> 1
Once pressing Y end-stop = Y shall change from 0 -> 1
Please double-check the MK2/MK2S Electronics Wiring.
If the procedure above went alright. Then one of your end-stops just can not be reached/triggered. That means there is some assembly/mechanical issue that prevents proper movement.
X/Y End-stops out of position.
More common is that the X/Y End-stops were not installed correctly during the assembly.
The easiest way to check that is by doing the following:
- You can easily click the end-stops when manually moving with Extruder or Heated bed, by hand.
- Inspect that nothing is blocking the path around the Smooth rods and Heated bed cables.
- With MK2S, it is wise to check that your Extruder cables are not hitting the mini RAMBo box. If they are, then re-adjust them.
