Compact Belt Rack / Hanger

2 configurations - either 8 slots in a flat/narrow rack, or 12 slots using all 4 sides.

Side A, Side B, and the spacer are required
Choose either the universal hanger for normal size closet rods, or the compact hanger to save more space if you have a wire-style rack.
Print Aux A and Aux B to add the face hangers.
Parts are held together with 4x M3*25 mm screws and hex bolts (I used cap head but shouldn't matter).

Print Settings

Printer brand:

Creality

Printer:

Ender 3

Rafts:

No

Supports:

No

Resolution:

0.2-0.4 mm

Infill:

Any

Filament brand:

Any

Filament color:

Any

Filament material:

Any - PETG/ABS more durable

Notes:

Parts should be printed on a flat face to maximize strength for the hooks. Supports not needed except maybe for the small "ramp" areas on the Aux A/B parts. There are 1-layer thick sacrificial bridges across the screw holes to give flexibility with printing orientation; punch through these with a drill (or the screw) during assembly.

Use 3-4 perimeters, the wider you can make the extrusion, the better for strength (and print speed); infill shouldn't matter much if your perimeters are thick enough. Z dimension is not critical; use as thick of a layer height as you want to save time.

Post-Printing

Assembly

Assembly of the standard rack is trivial - just assemble like a sandwich and align the holes.
To assemble with the auxiliary hangers, hold the Aux A and B parts together, then take side A (or B), hook it in one of the grooves of the Aux assembly on the top (wide) part, and tilt the side into place so the "ramps" seat in the triangle of the side frame. It is a tight squeeze but should fit. Repeat with the other side, then drop the hook piece into place from the top to lock everything together and insert the screws.