About this 3D model

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.