Bowden tube feeder with filament release mechanism

thingiverse

Bowden tube feeder with filament release mechanism This is a Bowden tube direct drive filament feeder for 1,75mm filament. (User Kert made a remix for 3mm fillament using a geared stepper over here: http://www.thingiverse.com/thing:306532) The great thing of this feeder is that it has a quick release mechanic to remove the tension of the filament on the extruder motor. This way you can easily remove en feed filament by hand. I've made a complete instruction video how to assemble the feeder and explanation of the inner working mechanics:http://www.youtube.com/watch?v=ZsNm0UfQsyQ (One mistake in video: the two 45mm M4 bolds should be 50mm) Also included is a filament spool holder for extrusion bars If you use it, please share a picture! Instructions Print everything without support. Print the visible text by pausing en change filament after the first 3 layers. See instruction video how to assemble. Use 2,5cm pipe for the filament spool holder Feeder parts list: 4 x M3 x 8mm 1 x M4 x 16mm 3 x M4 x 30mm 2 x M4 x 50mm (IS WRONG IN VIDEO!) 2 x M4 x 15mm 10 x M4 Washers 4 x self-locking M4 nuts 2 x M4 nuts 1 x bearing. Dia:13mm W:5mm Hole:4mm 1 x toothed wheel (Felix) 2 x springs Dia:7,5 mm L:15mm (Ikea clothes Pegs) 1 x Nema 17 stepper motor You can buy the toothed wheel over here:http://shop.felixprinters.com/product-catalog/spare-parts/extruder-wheel.html#.UlBlUILCR9M