About this 3D model

##yes ! 2x hobbed bolt => bowden extruder ###update 2014-05-12 - add new gear set :) oblique, quieter operation ###update 2014-03-25 - add ver. for 3mm filament ###parts: 2x hobbed bolt 2x 608 4x 688 M8 thread 2x ~30mm M8 nuts ~ 100mm ptfe tube 4/2 (for 1.75 filament, for 3mm filament no need) 2x m3 x ~30 and nut