RapidDraft synthetic FreeCAD prompt¶

    Candidate: Vacuum manifold block for suction head
    Pilot: WEBASTO
    Revision: REV B
    Material: Al 6082-T6

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

    Base geometry:
    Rectangular machined manifold block with drilled galleries, vacuum ports, and sealing-face detail.

    Key features:
    - top ports

cross-drilled galleries
sealing-face groove
dowel pattern
plug holes
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Critical dimensions:
- 140 x 60 x 25 mm
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- Moved port by 8 mm in Rev B
- Added sensor port and sealing feature
  
  Revision intent: Generate the changed follow-up revision and make the revision delta mechanically visible.
  
  Documented Rev B delta: - Move one vacuum port by 8 mm for hose and sensor clearance. - Add a new sensor port on the top face. - Refine the sealing-face groove on the manifold top surface.
  
  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.