Prusa i3 Mk2 Z frame support w/ base plate

Because the Z-axis of the Prusa I3 was always a little bit too wobbly to me, i wanted to improve that. There were some kinds of Z-axis supports here on Thingiverse, but none which looked acceptable to me. Because I also wanted to put the printer on a base plate, that I can move it around without having to recalibrate, I combined the Z-axis support with fixation points on the base plate, that way I didn't had to change the threaded rods of the frame. The rods for the support are made out of 8 mm