Dual gear extruder TPU modification
thingiverse
I had extruder clogged during print with TPU filament. The extruder outlet port has a 2 mm hole that widens into an M10 threaded hole. On my extruder the 4mm PTFE tubing was not able to fit up to the 2 mm section: I sharpened the PTFE tube end using a pencil sharpener. Please exercise with some old PTFE tube. Then I made a round spacer to fill the empty space around PTFE tube. It was ok to solve my problem. In my case the PTFE tube faces to the 2mm hole with 1.5mm gain versus the flat PTFE tube cut. There are two RC version of the spacer depending on PC4_M10 connector used type.
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