Physarum Maze — 3D-printable model preview
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Science & education Multi-part assembly

Physarum Maze

Watch a slime mould solve a maze

A maze for the slime mould that out-planned Tokyo’s railway engineers. Pour a thin layer of agar, put a crumb of Physarum at the start and oat flakes at the finish, and close the lid; over a few days the yellow mould explores every lane, then withdraws from the dead ends and leaves one vein along the shortest route.

Size
120 × 120 × 12 mm
Shape
Rectangular
Walls
2.0 mm
Volume
79.8 cm³
Est. weight (PLA)
99.0 g
Parts to print
2
Made by
Krypto
Built in
48 steps

What’s in it

  • Rectangular, 120 × 120 × 12 mm, with 2.0 mm walls
  • 7 dividers
  • Engraved text: “START”
  • Telescoping lid (prints separately)

How to print it

PETG; clean with alcohol before pouring agar.

Prints as shown on its floor, no supports. The lid prints as a separate part, top down.

Filament: at most about 99.0 g of PLA printed solid (roughly $1.98 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 physarum Maze model?

The physarum Maze model measures 120 × 120 × 12 mm (width × depth × height). You can change every size in the free SO3D.xyz generator before you download it.

Does it need supports?

No. PETG; clean with alcohol before pouring agar. Prints as shown on its floor, no supports. The lid prints as a separate part, top down.

How much filament does it use?

At most about 99.0 g of PLA (79.8 cm³ printed solid), roughly $1.98 of filament at $20 per kg. Normal infill uses less.

How many parts does it print as?

2 parts. The download lays each part flat in its best print position: Download STL gives one file per part, Download 3MF puts them all on one plate.

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 physarum Maze model in your browser, then download it for your printer. Free, no CAD needed.

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