I am working on a bowden extruder to replace the PlanetCNC Airtripper variant I have been using.
I wanted to be able to clean the gear teeth while filament is loaded, so I cut away from the back side support near the hobb gear. I also wanted to be able to run either Nema 17, or Nema 17 with gear reduction which is a different bolt pattern. I wanted to support the filament as close as possible to the contact between the hobb gear and the bearing. Lastly I wanted to replace the bowden tube pneumatic tube fittings with another retention method. I cannot even remove the tube from the fitting on my current extruder. I have only seen the 4mm nut around the bowden tube trick before online… but I have never done it. Can anyone with experience confirm it works well?
Also I have some updated screenshots of the modeling progress on the printer assembly.