Its me again!
I've just changed my z endstop to an optical, leaving the x and y as mechanical. The optical is inverted compared to the mechanical, and the only setting is to invert all endstops. would it be an idea to be able to individually control each endstop, rather than all 3?
Its not a real problem as I've just wired the mechanical switches N/O, but normally a mechanical switch is wired N/C incase the wire breaks.
regards
Paul