Compact Direct Drive Extruder 3mm and 1.75mm

This is a Non-Bowden Direct feed version of the Compact Bowden Extruder, direct drive (http://www.thingiverse.com/thing:275593) in 3mm and 1.75mm versions. Also Added some optional spacers in case you want to add a 40mm fan to the front. Included is the FreeCAD design file. Hope you like it.