Prusa i3 X-Ends for Z Acme Leadscrew

Here are the modified Prusa i3 x-ends I designed to use with Acme Leadscrew on the Z axis.

The z motors, leadscrews and traped nuts I am using are from Robotdigg. Here is a link: http://www.robotdigg.com/product/31/NEMA17-Threaded-Rod,-350mm-length-Tr8*8-Acme-Leadscrew

The upgraded belt tensioner can be found here: http://www.thingiverse.com/thing:160636.