Redesigned HyperCube z-axis shaft clamp

This is redesigned z-axis shaft clamp for HyperCube 3D printer that was developed by Tech2c (it is awesome printer by the way. Thanks to Tech2c). I've needed little bit more robust shaft clamp so I've redesigned it. Also I've wanted to relocate clamp screw which has originally to be screwed from side. In my design I've placed the screw in the front. There is more room there...

I hope you enjoy it.

UPDATE (04.20.2018)
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- STL and STEP files were added for different rail sizes (8 mm, 10 mm and 12 mm)