Hi, I have just got my 3.1 back on line. Working great, making lots of good prints. Suddenly the home for the "X" axis does not stop at the optical sensor and grinds away with the carriage jammed against the motor. My first thought was that the OPTO-sensor was not working. Swapped it out with a new one - same problem: I home the "X" axis with the machine controls and it just grinds away for a minute or so. Then we are good to print. This is setting my teeth on edge. Not only that, but it cannot be good for the belt!
Has anyone got any ideas what is going on? Any help would be appreciated. Thanks in advance.