My HondaVac/Shop-vac filter went bad and I was pissed I had to pay >$30 from the dealer for a replacement. I tried ordering a cheaper replacement from Amazon and twice got the wrong size even though they say it fits my model. It doesn't help that shop-vac went out of business either.

Sooo... I ordered a new OEM filter but swore it would be my last. Using this form I can take any house filter from Home depot and cut it to fit and pay a whole lot less.

I sewed mine on but it can be ziptied or taped I suppose.

I also modeled a reverse mold if you really feel ambitious and want to get some rtv and make a custom pleated filter. There is also a tube if you wanted to have something to wrap wire mesh around. Faster print then the other complicated piece with similar diameters.

Creality

Ender 3 Pro

No

Yes

I would only put support material over the build plate. The triangles are there specifically so you don't have to have supports there. The bottom of the print needs supports.