Filament Feeder for Mendel Prusa

This is a Filament Feeder that can be used both hands when you are replacing the filament.
This is for 1.75mm filament.
Approx. 40mm or more M3 cap screw and a M3 nut are needed.
Coil spring, which use only one original.
* type2_Arm_2Bearing.STL is needs 2 bearings, but it is for the future use.