Our collection of 3d printers at the local makerspace includes a Lulzbot Mini. It has been our most used and favorite printer, but we have run into a baffling problem. When the machine homes, the y-stop does not register and the motor continues to run. Here are the steps we have take so far:
- Replaced the wiring between the board and the end stop (twice - the last time with a cable made and tested by an electronics engineer).
- Replaced the board with a used refurbished one.
- Replaced the microswitch.
You can hear the switch click when it hits the stop and with a meter, can see that the switch activates.
Any suggestions about how to proceed?