Mineral streak test kit — 3D-printable model preview
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Science & education Multi-part assembly

Mineral streak test kit

Identify minerals with a streak plate, hardness tests and a lens

A field kit for rockhounds and geology students: bays for the classic identification tools, a streak tile, a glass plate, a steel nail and a copper coin for the Mohs scratch test, a magnet and a loupe. MOHS is raised on the lid. Work out what that pebble really is.

Size
200 × 110 × 30 mm
Shape
Rectangular
Walls
2.4 mm
Volume
220 cm³
Est. weight (PLA)
272 g
Parts to print
2
Made by
Krypto
Built in
20 steps

What’s in it

  • Rectangular, 200 × 110 × 30 mm, with 2.4 mm walls
  • 3 dividers in a grid layout
  • Raised text: “MOHS”
  • Telescoping lid (prints separately)

How to print it

Add an unglazed tile, a glass slide, a steel nail, a copper coin, a magnet and a 10x loupe.

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

Filament: at most about 272 g of PLA printed solid (roughly $5.45 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 mineral streak test kit model?

The mineral streak test kit model measures 200 × 110 × 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. Add an unglazed tile, a glass slide, a steel nail, a copper coin, a magnet and a 10x loupe. 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 272 g of PLA (220 cm³ printed solid), roughly $5.45 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 mineral streak test kit model in your browser, then download it for your printer. Free, no CAD needed.

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