* NEW VERSION AVAILABLE AT YOUMAGINE **
https://www.youmagine.com/designs/nema-14-geared-extruder-rev-1-2

As we needed a small, light and yet strong extruder for you new "Beiwagerl" Mini Printer, Daniel and me designed a new neat little Extruder based on the a Mix of my Uni-X Wade and the Nano-Extruder .
so you can insert nearly every single-mount based Hotend like, Mendel-parts,reprapfab,groovemount (J-head) and other stuff.
Best modification is the change of the Idlerscrews moved to the idler itself so the bolt is very easy to clean now !
Altough the Body is capable of using 3mm filament, its only designed to work with 1,75mm+brass insert ! (for flexible materials)
If you try it anyway with 3mm and it will run don`t hesitate to make a comment to it.
Beware , there are two versions, one with 40mm Mounting holes and one with 50mm !

My parts where printed on a 0.4mm nozzle, as of the small size i don`t know if a 0,5mm nozzle would do the job.
This Extruder uses the same Inserts as the Nano Extruder (except of the bowden inset which is not available) and the brass insert for 1,75mm Filament.
Bolt bearing: 2x128 ZZ 8x12x3,5mm
Idler bearing: 1x 624ZZ
Nema 14 Stepper, as strong as possible (teste with 1,8kg Stepper)
If you use a normal hobbed bold you have to add the cone spacers, if you can make your own hobbed bold ensure that the teeth are on the right position.
the pictures sould tell most of the assemby stuff.