Each stamper is made from four layers of laser cut pieces. Each layer is made of seven individual pieces, each containing two vertices of the Spectre tile.
I've cut the tile up in two ways, so that alternating layers overlap, like brickwork, for strength.
Get the stamper pieces SVG file - it fits six layers' worth of pieces onto a single 600×400mm sheet of 6mm plywood.
The pieces are numbered. One layer is made of even-numbered pieces, and the next is made of odd-numbered pieces.
There are holes at each vertex, for wooden dowels to hold the layers together. I used kebab skewers, with a diameter of roughly 3mm.
To assemble a stamper, build up four layers, applying wood glue between each layer.
The bottom face of the stamper is reinforced with 3D printed bevelled parts. There's one part for each of the 14 vertices:
- 90⁰ corner (×6)
- 120⁰ corner (×7)
- Straight (×1)
I've made two reference diagrams to help with coordinating the tiling:
- Level 1 metatile - print on paper
- Metatile quadrilaterals - print on transparency
The quadrilaterals should be printed on transparency because at each level of the metatiling, the quadrilaterals flip.