Mesh rebuild blender handle

The request

Attached is an STL of a D-shaped pull handle exported from Blender. Rebuild it parametrically as one sub-part named `handle`, standing where the mesh stands (Z up, same origin, feet on the same plane): a round section swept along a D-shaped path standing off the mounting face, with two flat feet each carrying a 5 mm through-hole, holes 114 mm apart. Controls: `span` (±20 mm) and `sectionDiameter` (4–12 mm). Keep the mesh imported in the part while you work. Measure the mesh first.

What the AI judge checks

• The overall form matches the reference: the same kind of object, the same silhouette from the matching angle
• Proportions match: the relative sizes of the major dimensions agree with the reference within what the eye can judge
• Every major feature visible in the reference (holes, slots, bosses, tabs, lips) is present in the result
• Those features sit where the reference has them
• Nothing is present that the reference does not show — no decorative or unexplained geometry
• A D-shaped loop standing off two flat feet, as in the reference
• The grip has a round cross-section

Measured checks

• one sub-part named handle (gate)
• volume within 5 % of the mesh (gate)
• bounding box within 0.5 mm of the mesh (gate)
• symmetric difference under the measured floor
• mounting holes are 114 mm apart
• the imported handle is still declared as an import
• asked the oracle at most once