Creality Space Pi Bowden Coupler

v2.0:

Updated to be more like the design I did for the Polydryer. The updated design includes a 3d printed nut for stronger attachment. I noticed after a while the 1.0 version in PLA would get loose when heating ABS and ADA. It's recommended to print this in ABS or ASA for heat resistance while using the dryer.

v1.0:

Some reviews of the Creality Space Pi have noted an issue of the bowden tube slipping in or out of the dryer as a printer pulls and retracts filament. 

I created a coupler in Open SCAD that uses a PC4-M10 fitting with a seat at the end of the coupler for a reverse bowden tube to rest on to prevent the tube from moving further in

The design is threaded for the fitting and threaded on the end for a M8 Jam Nut. You might want to thread the nut onto the coupler a couple of times before installing, so that the nut can thread easily during install.

The SCAD source is available for remixing and improvements.