This is one of three options I've made available for Bowden PTFE Coupler C-Clip for the Adventurer (AD5M) Runout Sensor.
OPTION 1 of 3 — Clone of the stock factory clip
PLA. Print as oriented. I used 0.2 mm layer height on 0.4 mm nozzle. Enjoy.
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I used digital calipers to measure and recreate the C-Clip used on both sides of the runout sensor on the Flashforge AD5M because one of mine got sucked into a clip-eating black hole.
Then I went above and beyond and made two more options for it. Speaking of the other two options… see below.

The author marked this model as their own original creation.