Nick Sonnentag’s Post

CADCLAW is a test harness for STEP assemblies (pytest for mechanical design.) Chained gates: interference detection, inventory, adjacency (is the motor actually near the motor mount?), dimensional checks, tolerance stacking (worst-case / RSS / Monte Carlo with Cpk), kinematic sanity (beam deflection, torque, belt tension). All subjects where I have heard my fellow engineers use wonderfully colorful words to describe when digital assemblies did not work in the real world. The disassembly animation below is one call: make_disassembly_gif("M3-2_Assembly.step", "out.gif"). 89 parts, 269 frames, zero manual animation. During M3-CRETE development the harness caught 53 solid-solid interferences, cut the STEP file from 70MB to 13MB, and validated 150+ assembly changes without visual inspection. MIT licensed. MCP server included so your AI can call it directly. What do you want to build today? #CAD #Python #OpenSource #CADCLAW