QU-BD TwoUp Limit Switch Holders

Update 8/12/15: I have replaced the Y-End and Y-Bumper files. I finally got around to printing them and made some minor changes.

I have designed holders for the SainSmart Mechanical Endstop. The X and Z axes are designed to work together but the Y Axis is independent. I haven't actually printed the Y Axis holder yet but the X and Z axes have worked as expected. The holes for the screws have been undersized with the intent on drilling and tapping for a #6 Screw; but you can use any screw th