If you have a closed compostor, like us, and you put used coffee filters there (or some other similar wet stuff), then you might want to let them dry first. At least our compostor gets far too wet without drying the coffee filters first (even with adding composting dry material). I guess we drink too much coffee.

But that's where this basket comes into the picture. It has four places, each 10x10x10 cm, so e.g. 1x4 filters will easily fit into those, probably even slightly bigger ones. Mind you, these have been designed for the 1x4 size, so if you have something different, then measure them before printing, and scale the parts to the size you want.

We keep this basket away from the kitchen, so I also made a single 10x10x10 cm basket for transporting one filter from the kitchen to elsewhere. That's, of course, optional, and not needed, if you dry your filters near the coffee machine.

Everything is print in place, and needs no supports.

The drip tray is separate from the basket for easier cleaning. The basket has a funny looking (no supports needing) handle in the middle for carrying it.

I have a large printer that I used to print these, but you should be able to print them with e.g. the MK3, or equivalent - just do not use the skirt when printing the drip tray, it won't fit. Or scale the tray and basket down 0,5 cm, or so.

I printed these using generic PLA, and a 0,6 mm nozzle, to save time. Print settings don't matter much, I guess.

Prusaslicer does complain about "thin fragile parts" for the basket(s), but I don't think that's a real problem. The basket doesn't have to endure a lot of weight (if used for it's original purpose). And they haven't cracked yet in use, so far.

I would be curious to hear what you think about this idea, so please don't hesitate to add a make and/or leave a comment, if you like. Cheers!