Fossil dig casting mould — 3D-printable model preview

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Science & education Multi-part assembly

Fossil dig casting mould

Cast a plaster block with toy fossils for children to excavate

A mould for a home palaeontology dig. Toy dinosaur bones go in, plaster goes over them, and once set the block lifts out ready to be excavated with a brush and a spoon. DIG is moulded on the front. It is reusable for every birthday party.

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Size: 160 × 120 × 56 mm
Shape: Rectangular
Walls: 2.4 mm
Volume: 171 cm³
Est. weight (PLA): 213 g
Parts to print: 2
Category: Science & education
Made by: Krypto
Built in: 22 steps

What’s in it

Rectangular, 160 × 120 × 56 mm, with 2.4 mm walls
Raised text: “DIG”, “Label”
Lift-off lid (prints separately)

How to print it

Drop toy bones in, pour plaster with a little sand, leave 24 hours, then lift the block out by the lid and dig with a brush.

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

Filament: at most about 213 g of PLA printed solid (roughly $4.25 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 fossil dig casting mould model?

The fossil dig casting mould model measures 160 × 120 × 56 mm (width × depth × height). You can change every size in the free SO3D.xyz generator before you download it.

Does it need supports?

No. Drop toy bones in, pour plaster with a little sand, leave 24 hours, then lift the block out by the lid and dig with a brush. 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 213 g of PLA (171 cm³ printed solid), roughly $4.25 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 fossil dig casting mould model in your browser, then download it for your printer. Free, no CAD needed.

Customize this model