Reference
Real product photodavolucelighting.com.au (white, 80mm)
Tripo v3.1
Tripo v3.1 (commercial)clean + textured · flat-puck depth (single front view)
Hunyuan raw
Hunyuan3D-2.1 (raw, shape-only)open-source · blob artifact
Hunyuan textured
Hunyuan3D-2.1 (textured)open-source · texture build now fixed
Parametric
Parametric (Blender, to-spec)clean sphere-on-disc · authored from dimensions