Auto leveling the bed fails

Lutzbot Workhorse.

When Leveling the the bed, the the nozzle hits the front 2 Washer fine. When the bed leveling goes to the back left washer the nozzle goes too far and the table shudders. This initiates the auto bed leveling procedure again, The leveling procedure starts over with the same result.

Verify that the frame is square, the bed is level with the frame, and the x axis is level with the bed.

Take a look at https://ohai.lulzbot.com/group/taz-workhorse/ as some of the final assembly steps show how to do the above.