Bowden Extruder for Flexible TPE/TPU Filaments

After struggling to print TPE filament on my Kossel Mini delta printer (nowden extruder), I decided to go back to basics and design a new extruder that incorporates the features needed to print this extremely flexible filament.

The main point of the design is to keep the "exit hole" as close as possible to the feed gear to remove the possibility of it kinking and jamming. The other design point was to have the entry and exit holes perfectly aligned with the edge of the drive gear, to keep phy