This setup gives more time for the bed to stop. My build plated did not stop quick enough and kept trying to rip the end stop switch off. The stepper driver was adjusted to the minimum setting. Fit up required due to variables. I cleaned the 3 mm holes & slots with a 1/8" drill bit. Top clip is optional. Bed screw needs to be fit due to limited travel. Adjust other corners after fit up complete. PLA cover is for a cleaner look. Bird is of ABS. Spring loaded stopper. Any thing from a 3 mm screw nut combination to a roofing nail can be used. Check all clearances before use as everything is a close fit. molak34_Y_carrage: http://www.thingiverse.com/thing:761813 endstop_holders.stl: https://drive.google.com/folderview?id=0B9b1NbuMK524M1JFM0IyNm4xOHc&usp=drive_web bird: http://www.thingiverse.com/thing:961923