Mesh rebuild freecad bracket

Gemini 3.8 Flash$0.181m 30s1m 26s waiting on the model8 builds, 1 failed

Reference
iso
front
back
top
bottom
left
right

96of 100

built: 85
geometry: 100
AI judge: 7 of 7

What the AI judge checked

Pass:The overall form matches the reference: the same kind of object, the same silhouette from the matching angle
- Opus 4.8: pass: The rebuilt part is an L-bracket with the same silhouette as the reference from the matching isometric angle.
- GPT-5.6 Sol: pass: The renders show the same right-angle L-bracket silhouette and overall rectangular construction as the reference.
Pass:Proportions match: the relative sizes of the major dimensions agree with the reference within what the eye can judge
- Opus 4.8: pass: The relative sizes of the vertical flange and horizontal base plate match the reference proportions.
- GPT-5.6 Sol: pass: The base length, bracket width, upright height, and material thickness visually agree with the reference.
Pass:Every major feature visible in the reference (holes, slots, bosses, tabs, lips) is present in the result
- Opus 4.8: pass: Both slots and both round holes are present as in the reference.
- GPT-5.6 Sol: pass: Both elongated slots and both circular holes visible in the reference are present in the base plate.
Pass:Those features sit where the reference has them
- Opus 4.8: pass: The two slots and two holes sit in the same positions on the base plate as the reference.
- GPT-5.6 Sol: pass: The slots occupy the inner portion of the base and the circular holes the outer portion in the same spacing pattern as the reference.
Pass:Nothing is present that the reference does not show — no decorative or unexplained geometry
- Opus 4.8: pass: No extra decorative or unexplained geometry appears beyond the bracket, holes and slots.
- GPT-5.6 Sol: pass: No bosses, fillets, tabs, decorative elements, or other unexplained geometry are visible.
Pass:Edges are straight and faces are flat — a CAD rebuild, not a copy of the mesh's facets
- Opus 4.8: pass: Edges are straight and faces flat with no visible mesh faceting, indicating a clean CAD rebuild.
- GPT-5.6 Sol: pass: The bracket has planar faces and crisp straight edges without visible mesh faceting.
Pass:The slots are elongated openings, not round holes
- Opus 4.8: pass: The two slots are clearly elongated obround openings distinct from the round holes.
- GPT-5.6 Sol: pass: The two slot openings are clearly elongated with straight sides and rounded ends rather than circular holes.

Measured

✓ watertight: true == true
✓ one sub-part named bracket: ok
✓ volume within 3 % of the mesh: ok
✓ bounding box within 0.5 mm of the mesh: ok
✓ symmetric difference under the measured floor: ok
✓ holes match the mesh: ok
✓ the imported bracket is still declared as an import: ok
✓ asked the oracle at most once: ok
✓ sweep thickness=2: base thickness tracks the control: ok
✓ sweep thickness=2: the upright still reaches the mesh's height: ok
✓ sweep thickness=8: base thickness tracks the control: ok
✓ sweep thickness=8: the upright still reaches the mesh's height: ok
✓ sweep holeDiameter=3: hole diameter tracks the control: ok
✓ sweep holeDiameter=8: hole diameter tracks the control: ok
✓ sweep width=30: width tracks the control: ok
✓ sweep width=50: width tracks the control: ok

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Run baseline-2026-092026-09-10commit 41aec7daspend $339.70 + $48.02 AI judging, 7 unpricedOther runs: 2026-09-04T20-02-10-stage2-hard-cases, 2026-09-04T19-48-31-screen-14-fixed