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RapidDraft synthetic FreeCAD prompt

    Candidate: QFeed idler sprocket mount plate
    Pilot: SOMIC
    Revision: REV B
    Material: Stainless 304

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

    Base geometry:
    Rectangular adjustment plate with idler slotting, bearing pattern, and safety-guard mounts.

    Key features:
    - elongated idler adjustment slot
  • bearing mount pattern
  • tension-scale boss
  • safety-guard holes
  • large center clearance hole
    Critical dimensions:
- 180 x 120 x 8 mm
    • Idler slot 11 x 35 mm

    • Guard-hole add-on pattern

      Revision intent: Generate the changed follow-up revision and make the revision delta mechanically visible.

      Documented Rev B delta: - Extend the idler adjustment slot for easier tensioning. - Add a pair of guard-mounting holes for the revised guard concept. - Keep the bearing interface fixed while expanding adjustability and safety integration.

      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.