RapidDraft synthetic FreeCAD prompt¶

    Candidate: Lug-chain carton pocket side plate
    Pilot: WEBASTO
    Revision: REV B
    Material: Al 7075-T6

    Generate a mechanically plausible, feature-rich FreeCAD part that looks like a realistic engineering demo asset instead of a generic primitive.

    Base geometry:
    Machined side plate with a carton-pocket profile, dowel repeatability features, and wear-strip mounting.

    Key features:
    - pocket profile cutout

wear-strip mounting row
dowel holes
counterbores
entry relief pocket
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Critical dimensions:
- 260 x 140 x 12 mm
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- Pocket widened by about 1.5 mm in Rev B
- One dowel shifts by about 0.3 mm
  
  Revision intent: Generate the changed follow-up revision and make the revision delta mechanically visible.
  
  Documented Rev B delta: - Widen the carton pocket by 1.5 mm. - Shift one dowel hole by 0.3 mm for repeatability tuning. - Add a small lead-in relief at the pocket entry.
  
  Realism rules: - Keep the geometry manufacturable and parametric-looking. - Preserve the overall part identity between revisions. - Make the revision change obvious enough for RapidDraft diff and release-review storytelling. - Export a single STEP-compatible solid or compound. - Avoid customer-specific IP and treat this as a synthetic review artifact.
  
  Output contract: - Write a standalone FreeCAD Python script. - The script must export the final STEP file to sys.argv[1]. - Keep the script headless-safe.