Creality Space Pi X4 PTFE Stop Remix

I liked the idea of the original but only had M10 fittings on hand. After making it with M10 threads and putting it into the fittings on the back of dryer box to test fit it, I realized it was difficult to push the collar to pull the fitting out so I made a little donut to push the collar and remove the fitting. I also wanted a funnel so I made one to put inside the box. Lengthening the part brings more risk of breakage but I had no issues assembling it all. It might be wise to test out a few different funnels at various scales (99%, 102%, etc.) to ensure a good fit without having to force it on too hard.

The tiny rings are for the inside of the base of my M10 fittings. They center the PTFE tubing to ensure things all line up properly (see photos).

I included a longer version of the M6 variant for anyone that wants to use the collar pusher and funnel on that size (collar might not be necessary on the M6 as you can access the fittings somewhat easier).

The inside diameter of the tubes is 1.98mm so that you can use a hand drill with a 2mm bit to bore it out and make the inside more smooth. This helps a bit with reducing the friction on the filament. I also printed at 0.1mm layer height to have better quality threads and smoother surface on the funnel and it seems to be working pretty well. I printed with ASA so that I don't have any issues with the heat (I print regularly with ASA and PC so the dryer is often set to 70-80C).

I have no idea if this will fit or be useful in the fittings on the lid as I only plan to use the fittings on the back. I would imagine that opening and closing the lid increases the possibility of breaking them.

**Update: I fixed the 3MF and made STLs for all the parts.