Robo3D Z axis stabilisation

Simple stabilisation for the Z axis of the Robo3D printer. There are several similar parts available on Thinigverse, this one maintains the position of the rod and the threaded bolt. The threaded bolt is held in position by a standard bearing. Two dampeners hold everything in position.

Additional parts:
2 x ABEC-5 bearings
4 x M4 x 10 screws
Piece of electrical tape for threaded bolts