Filament feeder Nema 23

Filament (1.75mm) feeder for my 3D printer project (motor type is 23E-610AM). Nema 23 (if motor has not round profile) will also fits with some modification of "filament_feeder_1.SLDPRT" file (SolidWorks 2013)
09/2015 Update of some parts
Ball Bearing V625ZZ (625VV) 5x16x5mm V-Groove
Spring from dryer clips (Ikea PRESSA series).