Bowden Coupler - Fully Printed

This is a fully 3D-printed couple for combining two bowden tubes together to 1 output. The Bambu Lab X1/X1 Carbon with AMS allows using filament outside the AMS, but it normally requires uncoupling the bowden tube from the printer and manually inserting filament. The stock Bowden coupler has tiny metal teeth that dig into the bowden tube, and will eventually wear out the PTFE bowden tube. Some others have come up splitters designs that use threaded metal fittings, but I don't have any of these and wanted to use a fully 3D printed version. Incorporates a modified version of the PC4-01 fitting by Dimasbka from Thingiverse (https://www.thingiverse.com/thing:3976142) that uses a slot and retention clip instead of M10 threads. This change allows the tubes and coupling to rotate in place. There was a recent firmware update what added a check box to disable AMS so you don't need to unplug it to use a separate spool of filament. Printing tips: I had success printing all parts in PLA, using 0.4