A Mechanical Freelancing Hub

We have high-resolution 3D scan data of an automotive/industrial plastic enclosure that needs to be converted into a parametric, injection-moldable CAD model. The external form factor is ICAT-approved and must remain unchanged.

Scope:

- Reconstruct clean parametric B-Rep solids from scan data.

- Deliver STEP AP214/AP242 and native CAD.

- Maintain all external envelope dimensions and mounting interfaces.

- Maintain nominal wall thickness with appropriate draft angles.

- Redesign perimeter split-line with tongue-and-groove O-ring/gasket sealing for IP67: 1 m immersion / 30 min.

- Define groove width, depth, draft, corner radii, 75–85% gasket fill, and 20–28% compression.

- Add external hard stops/landings to prevent over-compression.

- Design screw bosses for self-tapping/thread-forming screws only; no brass/heat-set inserts.

- Size boss core holes, counterbores, and outer diameters according to resin guidelines.

- Add gussets to prevent boss deflection/bowing under gasket loads.

- Keep all screw bosses outside the primary O-ring sealing boundary.

- Verify parting lines, shut-offs, and 0.5°–1.0° draft inside seal grooves.

- Eliminate sink-risk/heavy mass concentrations behind bosses and ribs.