Sources for Rollerstruder: filament feeder / driver / extruder

moon's bolt - yet another hobbed bolt (http://www.thingiverse.com/thing:68480)
Bowden Clamp for Ultimaker (Heater End) (http://www.thingiverse.com/thing:11864)
Poor man's openscad screw library (http://www.thingiverse.com/thing:8796)
Knurled surface finishing library (http://www.thingiverse.com/thing:9095)
Oh nooo, another customizable thumb wheel / knob / screw / whatever :D (http://www.thingiverse.com/thing:70494)
Drop in replacement: ultimaker small stepper gear (http://www.thingiverse.com/thing:45407)
Drop in replacement for the ultimaker extruder big wheel/gear (http://www.thingiverse.com/thing:25501)