kioko-propellers

Kioko Parametric Propellers holds 500 watertight propeller geometries. Each 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, about 730k triangles on average, 0.4M to 1.2M), plus front and back renders (.png).

Forty-two design parameters per sample are recorded: span, blade count (sampled from 4 to 6; this release holds 167 four-blade, 164 five-blade and 169 six-blade propellers), chord and sweep at five stations, and the camber, thickness, leading and trailing shape of four airfoil sections. Parameters are drawn with a Sobol sequence over the ranges in main.data, so the design space is covered evenly rather than clustered.

Every published sample compiled without error and passed a watertightness check (no open edges, no edge shared by more than two triangles), and every mesh is consistently oriented with all triangles facing outward, so enclosed volume and normals are correct. Samples that failed were dropped rather than repaired, and the failed list is empty in this release. The source is about 300 lines of code in 14 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.