Biqu B1 PTFE Filament Guide
thingiverse
PTFE filament guide for Biqu B1. Works with PTFE tube with 4mm OD and 1.75mm ID To assemble, cut a piece of PTFE Tube about 90mm. Insert the tube into guide until it sticks out of the end a little (as shown in the photos). It should be a tight fit and not require any glue to stay in place. Unscrew the 2 screws and remove white spacers from the filament sensor. Replace the spacers with new guide.
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