About this 3D model
Inspired by TwoTimes awesome wobble arrester, http://www.thingiverse.com/thing:2151 You will need to purchase the vertical rails and bushings listed in the wobble arrester materials list. The design captures the Z-axis nut, have a smooth base which can slide smoothly under the acrylic and have a vertical pin to prevent rotation. it is all very simple and makes a huge difference in the smoothness of your prints because it removes the wobble from the rotating z-shafts. I also printed a simple triangle to capture the z-rails, but the ones in the wobble arrester is far cooler.