Corbel Reach

Stack blocks to overhang beyond the table edge

A stacking puzzle about how builders spanned before arches. Each block carries engraved marks at a half, quarter, sixth and eighth of its length: stack eight, each one set back to the next mark, and the top block ends up entirely beyond the edge of the table, held by nothing but balance.

Customize this model

Size (Base A): 200 × 30 × 14 mm
Shape: Rectangular
Walls: 2.0 mm
Volume: 24.2 cm³
Est. weight (PLA): 30.0 g
Parts to print: 1
Category: Science & education
Made by: Krypto
Built in: 42 steps

What’s in it

Rectangular, 200 × 30 × 14 mm, with 2.0 mm walls
Engraved text: “|2”, “|4”, “|6”, “|8”, “CORBEL REACH”
One more base built on (Base B)
Base B: rectangular, 200 × 30 mm (stacked)

How to print it

Print eight, same settings so they weigh the same.

Prints as shown on its floor, no supports. Stacked parts are fused into one print.

Filament: at most about 30.0 g of PLA printed solid (roughly $0.60 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 corbel Reach model?

The corbel Reach model measures 200 × 30 × 14 mm (width × depth × height). That is Base A; one more base is built on. You can change every size in the free SO3D.xyz generator before you download it.

Does it need supports?

No. Print eight, same settings so they weigh the same. Prints as shown on its floor, no supports. Stacked parts are fused into one print.

How much filament does it use?

At most about 30.0 g of PLA (24.2 cm³ printed solid), roughly $0.60 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.