Claude Opus 4.7 → CadQuery
B · Engineering-Aidedcomposite 64.4 [58.2, 70.0]p5 0.0IRT θ 88.8
Anthropic + CadQuery 2.4· vopus-4.7 + cadquery 2.4· released 2026-01-22· LLM+CadQuery· emits CadQuery· proprietary· 1000k ctx· $0.015/$0.075 per 1k tok
Few-shot scaffold (8 exemplars from the OCC tutorial set), self-repair loop with up to 3 OCC error feedbacks. Executes in a Vercel Sandbox per call.
solid: agent · dashed: human baseline
PER-CATEGORY SCORE (95 % CI)
Geometric Primitives
68.4
Boolean Robustness
68.7
BREP Fidelity
71.6
Free-form Surfaces
86.3
Parametric Mechanical Parts
61.2
Assembly & Mating
36.9
Standards Compliance
34.5
Sheet-Metal Bodies
73.3
Sealing-Groove Design
72.2
Kinematic Mechanisms
70.3
DFM · 3-Axis CNC
70.8
DFM · Injection Mould
67.3
DFM · FDM 3D Print
74.3
CAM Toolpath Validity
67.8
Constraint Solving & Editability
77.9
Reverse Engineering
68.4
2-D Sketch Constraints
89.3
Functional Intent · FEA-Gated
63.5
Paraphrase Robustness
81.1
Confidence Calibration
40.0
MEAN METRICS BY LAYER
L1 · Geometry
| Category | Vol IoU | Chamfer | Hausdorff | NormCons | Watert. | Manif. | Euler | STEP RT | P@1 |
|---|---|---|---|---|---|---|---|---|---|
| Geometric Primitives | 0.695 | 0.179 | — | — | — | 0.951 | — | — | — |
| Boolean Robustness | 0.465 | — | — | — | — | 0.938 | — | — | — |
| BREP Fidelity | — | — | — | — | — | 0.934 | — | 0.086 | — |
| Free-form Surfaces | — | 0.198 | 0.909 | 0.797 | — | — | — | — | — |
L2 · Engineering
| Category | Dim RMSE | GD&T | FeatRec | Mating | Fit-Cls | Std |
|---|---|---|---|---|---|---|
| Parametric Mechanical Parts | 0.210 | 0.636 | 0.718 | — | — | — |
| Assembly & Mating | — | — | 0.783 | 0.614 | 0.447 | — |
| Standards Compliance | — | 0.624 | — | — | — | 0.756 |
| Sheet-Metal Bodies | 0.196 | — | 0.728 | — | — | — |
| Sealing-Groove Design | 0.263 | — | — | — | — | 0.706 |
| Kinematic Mechanisms | — | — | 0.709 | 0.633 | — | — |
L3 · Manufacturing
| Category | DFM | Draft | Min-Wall | CAM-Reach | Supp | Wall-Unif |
|---|---|---|---|---|---|---|
| DFM · 3-Axis CNC | 82.000 | — | 0.636 | 0.670 | — | — |
| DFM · Injection Mould | — | 0.660 | 0.684 | — | — | 0.676 |
| DFM · FDM 3D Print | 81.433 | — | 0.622 | — | 0.416 | — |
| CAM Toolpath Validity | — | — | — | 0.655 | — | — |
L4 · Cognition
| Category | ParamEdit | ConSolve | P-Range | FEA-σ | Para σ | Seed σ | Brier | EditLat |
|---|---|---|---|---|---|---|---|---|
| Constraint Solving & Editability | 0.784 | 0.800 | 0.753 | — | — | — | — | — |
| Reverse Engineering | — | — | — | — | — | — | — | — |
| 2-D Sketch Constraints | — | 0.846 | — | — | — | — | — | — |
| Functional Intent · FEA-Gated | — | — | — | 0.561 | — | — | — | — |
| Paraphrase Robustness | — | — | — | — | 0.026 | 0.050 | — | — |
| Confidence Calibration | — | — | — | — | — | — | 0.101 | — |
TASK-BY-TASK ARTIFACTS
PRIM-001Hollow cylinder (60 × 40 × 100)0.7180.00PRIM-007Right hexagonal prism with pitch fillet0.6130.00BOOL-003Coplanar-face union (knife-edge stress)0.6310.00BOOL-009High-genus subtraction (lattice block)0.4960.00BREP-004NURBS-handle goblet (G2 swept loft)0.5010.00SURF-002Compressor blade (NACA 65-(12)10)0.4440.00MECH-014L-bracket with M6 + slotted hole0.5000.00MECH-022Stepped shaft with retaining-ring groove0.0000.00MECH-027Planetary-gear carrier plate0.5820.00ASM-005Pin-in-hole, H7/g6 sliding fit0.0000.00ASM-011Dovetail slide (60° flanks)0.5860.00STD-002ISO 4762 M8×30 socket-head cap screw0.0000.00SHEET-003U-channel bracket, 1.5 mm Al, k=0.400.7701.00SEAL-001AS568-214 face-seal groove0.6890.00KIN-002Four-bar linkage, Grashof crank-rocker0.5330.00DFMCNC-0023-ax-machinable manifold block0.5700.00DFMMOLD-002Injection-mouldable enclosure half0.5770.00DFMFDM-008FDM-printable hinge (no support)0.4730.00CAM-0015-pocket plate, Ø3 endmill finish0.4590.00PARAM-006Editable flange (bolt circle param sweep)0.8321.00PARAM-013Editable bracket (length+30 %, hole→M8)0.6420.00REVENG-002Three-view ortho → bracket0.4160.00REVENG-009Three-view ortho → housing with cores0.5790.00SKETCH-003Tangent-arc transition profile0.7260.00FUNC-001Cantilever bracket — 250 N tip load, 6061-T6, SF≥40.3390.00FUNC-007Heat-sink fin array for 25 W TO-2200.3850.00PARA-0015× paraphrased L-bracket0.7480.00CAL-003Confidence-calibrated planetary carrier0.3710.00PRIM-002Sphere with planar cap0.6590.00PRIM-003Right truncated cone (frustum)0.6160.00PRIM-004Square-base pyramid frustum0.6650.00PRIM-005Tilted-axis box (30°)0.7360.00PRIM-009Hollow torus (Ø100 mean × Ø8 tube, 1 mm wall)0.7180.00BOOL-001Tangent cylinder onto cube (line-of-contact)0.6030.00BOOL-002Two interpenetrating spheres (lens intersection)0.5840.00BOOL-005ε-offset extrusion (sliver-face stress)0.4780.00BREP-001Periodic-spline cylinder (closed in U)0.6130.00BREP-002G1-only loft (tangent discontinuity)0.5590.00BREP-007Trimmed sphere with hole through pole0.4720.00SURF-001Ergonomic mug handle (revolved spline)0.4050.00SURF-007Mouse top-shell (Class-A)0.4990.00MECH-002Bearing block — two 6204 deep-groove bearings0.6080.00MECH-005Cam-follower lever (eccentric pivot)0.6350.00MECH-018Heat-set insert boss array (4× M3)0.7731.00MECH-031Threaded cap with diamond knurl0.6460.00ASM-001Threaded coupling M16×1.5 (male+female pair)0.4640.00ASM-008Spline shaft + hub (DIN 5480 W25×1.25×18)0.4790.00ASM-013Bayonet quarter-turn mount0.0000.00STD-001ISO 7050 self-tapping screw ST4.2 × 160.0000.00STD-005ISO 8734 dowel pin Ø6 m6 × 300.5950.00STD-008ASME B18.6.3 button-head 1/4-20 × 5/80.6420.00SHEET-001Box-pan with corner relief cuts0.7410.00SHEET-0073-bend electronics chassis0.6720.00SEAL-004AS568-218 piston-type radial groove0.4990.00SEAL-007ISO 3601-2 quad-ring face groove0.4710.00KIN-005Geneva drive — 4 station0.5400.00KIN-008Planetary gearset full mesh (sun + 3 planets + ring)0.5710.00DFMCNC-0054-pocket plate, R 0.5 internal corners0.5800.00DFMCNC-009Long-aspect bracket (vise-fixturable)0.5290.00DFMCNC-0135-axis-only fish-mouth saddle0.6240.00DFMMOLD-005Telephone handset shell0.4490.00DFMFDM-002Bridge-test calibration cube0.5600.00DFMFDM-011Print-in-place hinge0.5680.00CAM-005T-slot pocket array (Ø 8 + Ø 4 endmills)0.5650.00PARAM-009Configurable bottle (height + cap params)0.6880.00REVENG-005ABC dataset stepped pulley (multi-view)0.5450.00SKETCH-014Symmetric four-bar profile0.7621.00FUNC-003Heat-sink for 60 W CoB LED0.4980.00PARA-0055× paraphrased planetary carrier0.6470.00CAL-007Confidence-bracketed mounting flange0.4930.00