Most AI 3D generators just output lumpy meshes. WebCAD generates mathematical surfaces. I taught CAD Genie how to use advanced operations: Revolve: "Make a wine glass" (Profile + Axis) Loft: "Make a bottle" (Multi-plane profiles + Guide) It doesn't guess pixels. It generates the B-Rep history stack. Try it yourself (Free): app.webcad.ca

4:1 Planetary Gearbox: Design to Stress 0.5 N·m in, 2 N·m out. The fixed ring gear passes the difference into the frame through three M4 bolts. Mild Steel, peak stress 0.99 MPa: about 1/250th of yield.

Parallel-jaw gripper. One servo, 20-tooth pinion, two racks. As I move one number, the pinion angle. The jaws, the carriages and the rods adjust. Then 100N of grip: 9.6 MPa peak, 0.04 mm deflection, 6061 Aluminium.

4 Piston boxer engine stress analysis video by GPT 6-Astra. All autonomously. Mostly steel at E=210GPa

SO-101 parametric Robotic Arm CAD renditioned by GPT 6 Astra

Crankshaft FEA study, steel 24KN toward crank axis

The CAD file runs its own wind tunnel. One script: builds the UAV (NURBS lofts, native kernel), declares the aero case, voxelizes 2.6M cells, runs LBM (240 Re) on WebGPU, and paints surface pressure.

Micro drone, 3-axis gimbal edition

Autonomous Trucking Rig generation in real time

5 DOF arm, real-time FEA load sweep

Procedural Autonomous EV Bike Generation

Cam follower valve train

5 DOF arm, ceiling rail edition: requested by @AiPrepperX Same arm as last week, hung upside down on a prismatic rail traverse. Parts unchanged, the solver does the 180° flip from one mount connector. Contact sweep: 0.298mm running clearance across the range of motion.