About this 3D model
This is a clip to hold the Mosfet breakout board from SparkFun https://www.sparkfun.com/products/10256 I'm using it for the g-code enabled extruder fan mod on my Solidoodle 2. Details on how to set it up can be found here http://solidoodletips.wordpress.com/2012/10/26/gcode-controlled-extruder-fan/ I just attached the clip to the back of the machine with some double sided tape. I have included the sketchup model in case you want to modify it in any way.