Kossel Clear auto calibration probe deployment post

Simple post to deploy auto calibration probe. The post is a piece of 1/8" carbon fiber rod. Length of the rod is 50 ~ 60 mm. A 3 x 20mm bolt is threaded through the print bed near the edge and is used to retract the probe. The bolt is covered with some heat shrink tubing.

See it in use here: http://youtu.be/fT3f_RupB9k