MK4 Reverse Bowden Adapter (attaches to PC4-M10 or directly to your 4.1mm OD PTFE tube)
prusaprinters
The Prusa MK4's extruder filament inlet has a threaded M5 hole for which Prusa provides a Festo QSM-M5 fitting to use with MMU3. This model replaces the QSM-M5 in a reverse bowden system for the MK4.The adapter is designed to take a PC4-M10 coupler, but it is also designed to be able to work without one. You can use a PTFE tube with an outer diameter of approximately 4.1mm and still be able to secure it to the adapter through a recessed hole.You can print this upside down without support in approximately 12 minutes on a MK4. Using a PETG filament is recommended.This was largely inspired by https://www.printables.com/model/550181-mk4-reverse-bowden-adapter-coupler-edition and https://www.printables.com/model/547831-mk4-reverse-bowden-adapter. I created this version as the others were only secured by friction and would come loose.
With this file you will be able to print MK4 Reverse Bowden Adapter (attaches to PC4-M10 or directly to your 4.1mm OD PTFE tube) with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on MK4 Reverse Bowden Adapter (attaches to PC4-M10 or directly to your 4.1mm OD PTFE tube).