Lo Shu magic-square snack tray — 3D-printable model preview

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Tabletop gaming & play Advanced

Lo Shu magic-square snack tray

Serve snacks in nine bays numbered so every line adds up to 15

According to legend, a turtle climbed out of the Luo river 4,000 years ago with this pattern on its shell: the numbers 1 to 9 in a square where every row, column and diagonal adds up to 15. Put that many sweets, nuts or grapes in each bay. Whoever picks any straight line of three gets exactly 15. For a puzzle, empty it and ask a child to put the numbers back so the magic still works.

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Size: 180 × 180 × 30 mm
Shape: Rectangular
Walls: 2.4 mm
Volume: 125 cm³
Est. weight (PLA): 156 g
Parts to print: 1
Category: Tabletop gaming & play
Made by: Krypto
Built in: 36 steps

What’s in it

Rectangular, 180 × 180 × 30 mm, with 2.4 mm walls
4 dividers in a grid layout
Engraved and raised text: “4 9 2”, “3 5 7”, “8 1 6”, “15”

How to print it

Food-safe PETG. The numbers are engraved in the floors of the bays.

Prints as shown on its floor, no supports.

Filament: at most about 156 g of PLA printed solid (roughly $3.11 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 lo Shu magic-square snack tray model?

The lo Shu magic-square snack tray model measures 180 × 180 × 30 mm (width × depth × height). You can change every size in the free SO3D.xyz generator before you download it.

Does it need supports?

No. Food-safe PETG. The numbers are engraved in the floors of the bays. Prints as shown on its floor, no supports.

How much filament does it use?

At most about 156 g of PLA (125 cm³ printed solid), roughly $3.11 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.

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Make it fit your space

Change the size, walls, dividers, holes and labels of the lo Shu magic-square snack tray model in your browser, then download it for your printer. Free, no CAD needed.

Customize this model