Bowden tube feeder with filament release mechanism - 3mm version

UPDATE 1 :
I made a little approximation modifying the top plate, and made the space for the 8mm Bearing too narrow for it to really push the filament against the hobbed bolt without touching the surrounding walls. I just corrected this so if you printed the previous version, you might need to use a dremel or a knife to remove some matter.

I absolutely loved the design by satoer, and I definitely wanted this bowden mechanism on the printer I'm building!

Unfortunately, it is only availabl