I redesigned my 40° coupler from the ground up! The Fusion360 design is now more parametric, so if you want to mess with the angle, get the source here!
https://a360.co/2BwCLdH
It's also shorter, and has a smaller footprint in general. It uses my new design for PC4-M10 interfaces.
This print works better if your PTFE tubing is chamfered at the end; guiding the filament in. Here is a fantastic tool I use to chamfer the ends of my tubing:
https://www.prusaprinters.org/prints/46984-ptfe-tube-60deg-chamfer-tool-by-printschnitzelat
Here is my original design for this coupler. It may be easier for you to print.
https://www.thingiverse.com/thing:3746615
Here are the PC4-M10 couplers I bought:
https://smile.amazon.com/dp/B078SRBDS7/
Here are the 3M Command Strips I use:
Learn more:
https://smile.amazon.com/dp/B0751RPC6Q/
Print with Supports
You can easily remove the supports at the end by poking them out from the other side with an allen wrench or something.
The author hasn't provided the model origin yet.