MK2 MK2S MK2.3 Reverse Bowden extruder

thingiverse

I set out to design a better solution for reverse bowden setup specifically tailored for the MK2 and MK2S printers, utilizing the innovative features of the MK2.3 setup from Tijnv's groundbreaking model. The extruder body was custom designed with precision to accommodate PC4-M6 PTFE tube fittings seamlessly. It is crucial to obtain the 4.3mm bore variants of these fittings to enable smooth passage of the PTFE tube, preventing any unnecessary rubbing against the filament during feeding. To achieve this, I recommend using Winsinn's high-quality PC4-M6 4.3mm bore fittings, as seen in the last photo where the fitting appears in silver with a black top. The z-axis tops were inspired by ctilley79's Z-top reverse bowden design, but with significant improvements to enhance strength and aesthetics. The left top remains unchanged, while the right one underwent a comprehensive redesign for added durability and visual appeal. To successfully print the extruder body, it is essential to include supports for the PTFE tube mounting point. The files provided include all of the MK2.3 designs, which are identical to those used in the MK3 V2 extruder, along with an LCD cover that proudly displays the phrase "Turbo Prusa" - a fun touch for users who want it! To assemble this setup, you will need: * Two PC4-M6 4.3mm bore fittings (available on Amazon) * Approximately one meter of PTFE tubing