NOTE: This version suffers from heat deformation over time, and always loosens up after a few of my prints. I've designed a better version here: http://www.thingiverse.com/thing:1291106Based on the Makersome clip, this version removes the beveled inset, and lowers the height a little bit. I made this to fit a glass plate with PEI bed material having a combined thickness of 3.5 mm. The height sits slightly lower than the surface, but above the glass. Since the inset is removed, it will work with plates as large as the bed size, and a little bigger. Please note that this does not apply any downward pressure on the plate. It is only holding it in place. Make sure you use lock washers (size #6 worked for me). I noticed that after a while, the nut loosens up, and my glass plate was given an opportunity to slide around a little.