4 model

Free

Four-sided lock puzzle

Printables

Free

Four sided 70-80° overhang test with 30mm bridging.

Thingiverse

Free

Anycubic Chiron four-sided fan duct (convertible for leveling sensor usage)

Thingiverse

Free

AM8 Anet original Power Supply Full four sided Cover with hole for switch

Thingiverse