Flip Retractable Auto Level Probe for Kossel

A retractable probe using an over centering design that toggles to deploy the switch.

Music wire of .031" diameter
The switch used is http://www.digikey.com/product-detail/en/AV404461/255-3401-ND/646763

Please check out the instructions for more info.

Credit: [Kossel Mini J-Head Retainer](http://www.thingiverse.com/thing:107890) (white part) is shown in the first photo.