MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.

Download Now


Prusa MK3 Bowden Screw-on Coupling for Extruder

by zcubed Apr 18, 2018
Download All Files

Thing Apps Enabled

Please Login to Comment

What size coupling?

Apparently the M5 couplings I bought are not the ones EVERYONE designs around... lol

These are the exact ones I use.
BIQU PC4-M10 Male Straight Pneumatic PEFE Tube Push for E3D-V6 Fitting Connector Bowden Extruder 3D Printer (Pack of 10pcs) https://www.amazon.com/dp/B01IB81IHG/ref=cm_sw_r_cp_apa_Te37Bb2HN2136

Another user adapted a bigger diameter release so you could run you bowden a cm deeper and not need the secondary piece at all.

I also put heat sinks on my motor, big help, no?

I haven't used this coupling in several months now, I have a much shorter and integrated sensor cover for the zaribo extruder here: https://www.thingiverse.com/thing:3003239

Yes, the heatsinks do help somewhat with the hot motor especially in an enclosure.

MK3 Zaribo Filament Sensor Cover for Bowden Tubing
by zcubed

Thanks for the screw-on coupling! I'm currently using it with a coupling mount I designed that attaches to the power supply: https://www.thingiverse.com/thing:2929382.

Reverse Bowden power supply mount

Glad you like it! Great mod by you too!