genmitsu 3030 prover limit switch cover

simple cover for the y axis limit switches so metal shavings don't cause false triggers for the genmitsu 3030 prover 

stand cnc on its back and remove the two screws that hold the rear limit switch in place , slide this guard over the limit switch and re-attached both screws , by the y axis knob move y axis back manually to make sure guard clears black bar the limit switch makes contact with “ this is adjustable by its two screws ” when its verified as good and like in pics here , flip cnc to face side and repeat process 

mine bolted right on and the black bar had no clearance issues at all but some adjustment might be needed on yours