PC4-M6 PTFE Fitting Nut for Creality Filament Dry Box 2.0

Custom M6 nut to mount a PC4-M6 pneumatic fitting in the filament feed port of the Creality Filament Dry Box 2.0.
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updated February 6, 2025

Description

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The Creality Filament Dry Box 2.0 has a filament feed port in the back of its lid. It comes with a rubber grommet, which works fine for feeding out the filament bare, but doesn't hold on to a PTFE filament tube very well.

This model is a custom M6 nut which fits neatly in the 8mm hole in the lid with the rubber grommet removed. It allows you to mount a standard PC4-M6 pneumatic fitting in the hole to securely hold a PTFE tube. The back side of the nut has a smaller hole to keep the filament clear of any sharp corner on the back of the metal fitting.

There's also a washer which can go between the fitting and the outside of the lid if your fitting doesn't sit neatly against the outside of the lid.

I printed these in Bambu PETG HF Black on a Bambu P1S on the Textured Cool Plate using the default “0.08mm High Quality @BBLX1C” profile in OrcaSlicer with 100% infill and random seam position. For the washer I used the concentric pattern for the top and bottom surface.

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