CTC Z-Axis-Stabilizer

First trial to stabilize the z-axis thread shaft of the CTC printer. Ok, the z-axis is stabilized by the lateral plain bearings, but it wobbles very strong and thus reduces the accuracy of the X and Y positioning.
Perhaps also usable for identical Makerbot and FlashForge printers.
Best results in combination with better z-axis brackets like this: http://www.thingiverse.com/thing:497923
This thing was made with Tinkercad. Edit it online https://tinkercad.com/things/dXkjVFjrSjw