kioko-discs

Kioko Parametric Brake Discs holds 500 watertight brake-disc geometries in the style of Formula 1 discs: a thick ring drilled through with hundreds of radial cooling holes, up to 1,000 per disc, laid out for maximum cooling. Air enters at the disc's bore and is pumped out through the holes to the rim. Every disc was generated from the same parametric model, written in Kioko's CAD language, with a different set of design parameters.

Each sample is a closed triangulated surface (.stl, 9 million triangles on average, 4.4M to 18M) plus a render (.png). Cooling holes run 303 to 995 per disc (median 485): 101 to 199 rows around the disc, each a stack of 3, 4 or 5 holes through the thickness, 2.0 to 3.5 mm in diameter. Eight design parameters per sample are recorded (hole rows and holes per row, inner and outer radius, hole size and spacing, and the shape of the air inlet at the bore), with hole diameter and pitch recorded as derived sizes. Every disc is 32 mm thick.

Every published sample compiled without error and passed a watertightness check on exact vertex coordinates: no open edges, no edge shared by more than two triangles, and consistent winding on every edge. Samples that failed were dropped rather than repaired; in this release stage A screened 5,000 sectors and kept 1,000, stage B compiled 507 as discs, wrote the first 500, and dropped 7 that leaked. The source is about 130 lines of code in 9 small files, and metadata.csv plus index.json record the exact parameter values for every file, so any sample can be regenerated from its row.