A cute little biplane model that I made for the party bags at my kid's biplane themed party. I did a 200% version for the cake (that still goes together with M3 fixings) that's also here. The kid is two and he's not managed to break any of them yet so it seems pretty tough (in PLA+) and it prints without support.

Creality

Ender 3

No

No

0.8mm nozzle, 0.3mm layer height

20%

Print the rear part nose-down and the front part nose-up.

The smaller one is held together with an M3 x 20 bolt and M3 nylock nut (both in stainless steel). The larger one uses a M3 x 35 mm bolt (or a longer one with some nuts screwed up to the head back as spacers) and the same nut.