About this 3D model
*This part is no longer necessary. You can use it if you already have a Puller v3, but the designer made a Puller v4 that has deeper nut recesses.* The nut capture on the guided filament winder puller base is too shallow and prevented square mounting of my motor, so I made a spacer using my laser cutter. The same geometry could be used to 3D print the part, extrude it to 1.5mm thick and print. It is for this project: http://www.thingiverse.com/thing:81662