Simple bread proofing basket. Can't buy them anywhere because everyone is an artisan baker now, so I designed this. About the right size for 750g of dough. Designed in Onshape, model is here:
https://cad.onshape.com/documents/a8bcf5c99151d375c1493f2d/w/f899871520a2ec50b29140eb/e/e6745938bb4f82c215f7224a

Feel free to copy and modify.

Please note - it is up to you to decide if your print is food-safe. I would recommend using a cloth liner at least.

To the kitchen!!

Print instructions

Prints very nicely on a Prusa i3 Mk3 in Prusament PETG. Standard print settings, 0.3 draft layer height, turned the speed up to 125%. Takes about 8h at these settings (at 125% speed).