Kanizsa illusion snack trays — 3D-printable model preview

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Geometric & decorative Simple (set)

Kanizsa illusion snack trays

Set four notched trays together and a bright square appears that is not there

Put four of these round trays in a square with their notches pointing inwards and a bright white square appears between them, with crisp edges that do not exist. It is the Kanizsa illusion: your brain fills in the outline of a shape it expects to see. Fill them with snacks and watch guests swear the square is there. Cats seem to see it too: in a 2021 citizen-science study, pet cats sat in the invisible square about as often as in a real one.

Customize this model

Size: 100 × 117 × 14 mm
Shape: Custom outline
Walls: 2.0 mm
Volume: 25.4 cm³
Est. weight (PLA): 31.5 g
Parts to print: 1
Category: Geometric & decorative
Made by: Krypto
Built in: 4 steps

What’s in it

Custom outline, 100 × 117 × 14 mm, with 2.0 mm walls
Custom outline traced from a shape

How to print it

Print four. Arrange them in a square with the notches facing the middle.

Prints as shown on its outline, no supports.

Filament: at most about 31.5 g of PLA printed solid (roughly $0.63 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 kanizsa illusion snack trays model?

The kanizsa illusion snack trays model measures 100 × 117 × 14 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 four. Arrange them in a square with the notches facing the middle. Prints as shown on its outline, no supports.

How much filament does it use?

At most about 31.5 g of PLA (25.4 cm³ printed solid), roughly $0.63 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 kanizsa illusion snack trays model in your browser, then download it for your printer. Free, no CAD needed.

Customize this model