I asked Claude Opus 5.5 to CAD a Raptor 3
- 255 parts, real STEP file
- both turbopumps, preburners, injector, regen chamber, gimbal, TVC
- exploded view, every part named
- "make it a Raptor Vacuum" and it rebuilt the nozzle to 2.3 m, 107:1
open source CAD kernel, runs locally in Claude Code