This is my airbrush paint strainer.
I uploaded two sizes: Large and 50% smaller. It consists of two pieces, the base and the insert. To set it up, stretch your filter material over the bottom of the insert (Thin cotton, old nylon stocking etc) and seat the insert into the base. Trim the excess filter from around the side (See photo).
The base should sit on the top of your open paint bottle or small art paint can with the 3 legs.
I print mine with supports but they may not be necessary.
Remove any strings or bits that can get into the filtering paint. Lightly sand the inside surfaces and remove the dust.
Designed using NewTek's Lightwave 3D