Box Studio makes a complete hinged box in a single print — base, lid and hinge come off the plate already assembled and closed. Open it for the first time, push a strand of ordinary 1.75mm filament through the hinge knuckles as the pin, snip it flush, and the hinge is done. Start with the inside dimensions (what you want to store), then pick the lid depth — how much of the box opens with the lid. The friction lip keeps the closed box feeling solid; add the magnet clasp (6×2mm magnets, dropped in at a slicer pause) or the snap tab for a positive click-shut latch — its clearance slider tunes how firm the click is (0.3mm suits most printers). Labels engrave about 1.2mm into the lid top and base front and auto-shrink to fit the flat face; turn on nesting lid dividers and the compartment walls rise past the seam to meet matching walls in the lid, so small parts can't migrate while the box is closed. Print tip: PETG hinges and snap tabs outlast PLA. Everything prints support-free — the lid dividers bridge a 0.42mm gap directly over the base dividers, the same trick the closed seam itself uses.