Twin Keys

Separate two linked rings through hidden slots

A two-piece disentanglement puzzle: identical 60 mm rings, each with a slot that doglegs through the band. Link them and the slots never line up by accident; there is one turn and slide that frees them. Print two in contrasting colours, and the first move is linking them yourself.

Customize this model

Size: 60 × 60 × 9 mm
Shape: Custom outline
Walls: 4.0 mm
Volume: 7.2 cm³
Est. weight (PLA): 8.9 g
Parts to print: 1
Category: Tabletop gaming & play
Made by: Krypto
Built in: 5 steps

What’s in it

Custom outline, 60 × 60 × 9 mm, with 4.0 mm walls
Custom outline traced from a shape

How to print it

Print two flat in PETG, 4 mm, in two colours.

Prints flat as a plate, no supports.

Filament: at most about 8.9 g of PLA printed solid (roughly $0.18 at $20 per kg); normal infill uses less.

To get the files, open it in the generator and choose File › Download STL (one file per part) or Download 3MF (every part on one plate).

Questions

What size is the twin Keys model?

The twin Keys model measures 60 × 60 × 9 mm (width × depth × height). You can change every size in the free SO3D.xyz generator before you download it.

Does it need supports?

No. Print two flat in PETG, 4 mm, in two colours. Prints flat as a plate, no supports.

How much filament does it use?

At most about 8.9 g of PLA (7.2 cm³ printed solid), roughly $0.18 of filament at $20 per kg. Normal infill uses less.

Can I change it?

Yes. Open it in the SO3D.xyz generator (free, in your browser), change the size, walls, dividers, holes, text or anything else, then download it as STL or 3MF for your slicer.