MPMD Extruder Top for flexible filaments

thingiverse

I experimented with flexible filament on the original Extruder top design, but the filament kept slipping sideways through the gap between the wheels and the cover, looping down to the floor instead of feeding into the printer. I redesigned the cover to create a channel that extends all the way up to the wheels, ensuring the filament stays captured from the extruder to the hot end throughout its journey. The pointed tube on "V2" appears delicate (although it's less fragile than "V1"). To add extra support, I reinforced the tube in "V3", but haven't had a chance to test it yet. Currently, I'm using a "V2" to print with Sainsmart 1.75mm TPU.