BIKAR

Build a pattern from compass and straightedge, in a language that keeps the steps.

Work back from a photograph of a pattern to the construction that draws it.

Three ways to break a rosette into pinned, printable pieces — with the size each one needs to anchor, run live on the real geometry.

The catalogue these patterns end up in — cutters, orbs and bricks, with the STLs.

Turn an Islamic geometric orb until it is yours, then take the mesh.

A LEGO-compatible brick, sized for the printer in the room.