PTFE Plug
cults3d
It's a PTFE/Bowden tube plug. The stem tapers from 2.5mm to about 1mm to fit snugly in the tube. It tapers mainly because I like to open the ends of my tube with a hole punch reamer to reduce friction/pinching from cutting the tube. This can be printed in just about any filament. I would imagine TPU would be best,but I have yet to do any TPU prints.
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