I made a simple inline PTFE connector for PC4-M10 fittings. I wanted something that I could put in between my AMS unit and My Bambu Lab X1C, that way I didn't always have to try and remove the PTFE tube from the printer's buffer unit when servicing the printer or AMS.
It's a super simple yet highly effective design. I modeled it in Fusion 360 and exported it as a STEP file for the best quality while printing. But I also included an STL and 3mf that I exported from Bambu Slicer I printed it at .08 layer height and did use internal tree support to help hold the internal shoulder in place for a better overall print quality.
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