Voussoir Wedge — 3D-printable model preview

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Science & education Simple

Voussoir Wedge

Build a self-supporting arch from nine blocks

One stone of a self-supporting arch: print nine of these 20 degree wedges, lay them over the Voussoir Centring, drop in the last as the keystone and pull the centring out. Nothing holds the arch but compression, exactly as in a Roman bridge. The hollow side faces the back.

Customize this model

Size: 41 × 39 × 40 mm
Shape: Custom outline
Walls: 2.4 mm
Volume: 15.7 cm³
Est. weight (PLA): 19.5 g
Parts to print: 1
Category: Science & education
Made by: Krypto
Built in: 4 steps

What’s in it

Custom outline, 41 × 39 × 40 mm, with 2.4 mm walls
Custom outline traced from a shape

How to print it

Print nine, open side up, same settings for equal weight.

Prints as shown on its outline, no supports.

Filament: at most about 19.5 g of PLA printed solid (roughly $0.39 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 voussoir Wedge model?

The voussoir Wedge model measures 41 × 39 × 40 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 nine, open side up, same settings for equal weight. Prints as shown on its outline, no supports.

How much filament does it use?

At most about 19.5 g of PLA (15.7 cm³ printed solid), roughly $0.39 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 voussoir Wedge model in your browser, then download it for your printer. Free, no CAD needed.

Customize this model