Llama 3.3 70B → OpenSCAD
C · Conceptualcomposite 43.4 [40.0, 47.2]p5 0.0IRT θ 3.1
Meta + OpenSCAD 2024.06· v3.3-70b-instruct + openscad 2024.06· released 2025-04-22· LLM+OpenSCAD· emits OpenSCAD· open· 128k ctx· $0.0005/$0.0008 per 1k tok
Open-weight non-reasoning baseline. Treated as a sanity floor: an agent that scores below this is a regression for the field.
solid: agent · dashed: human baseline
PER-CATEGORY SCORE (95 % CI)
Geometric Primitives
75.0
Boolean Robustness
48.2
BREP Fidelity
41.9
Free-form Surfaces
72.4
Parametric Mechanical Parts
45.1
Assembly & Mating
30.3
Standards Compliance
33.3
Sheet-Metal Bodies
49.1
Sealing-Groove Design
51.4
Kinematic Mechanisms
26.4
DFM · 3-Axis CNC
48.5
DFM · Injection Mould
38.4
DFM · FDM 3D Print
41.7
CAM Toolpath Validity
39.5
Constraint Solving & Editability
40.4
Reverse Engineering
29.4
2-D Sketch Constraints
64.2
Functional Intent · FEA-Gated
23.5
Paraphrase Robustness
66.1
Confidence Calibration
37.2
MEAN METRICS BY LAYER
L1 · Geometry
| Category | Vol IoU | Chamfer | Hausdorff | NormCons | Watert. | Manif. | Euler | STEP RT | P@1 |
|---|---|---|---|---|---|---|---|---|---|
| Geometric Primitives | 0.463 | 0.192 | — | — | — | 0.919 | — | — | — |
| Boolean Robustness | 0.414 | — | — | — | — | 0.914 | — | — | — |
| BREP Fidelity | — | — | — | — | — | 0.855 | — | 0.849 | — |
| Free-form Surfaces | — | 0.486 | 2.367 | 0.699 | — | — | — | — | — |
L2 · Engineering
| Category | Dim RMSE | GD&T | FeatRec | Mating | Fit-Cls | Std |
|---|---|---|---|---|---|---|
| Parametric Mechanical Parts | 0.365 | 0.285 | 0.433 | — | — | — |
| Assembly & Mating | — | — | 0.430 | 0.368 | 0.110 | — |
| Standards Compliance | — | 0.283 | — | — | — | 0.383 |
| Sheet-Metal Bodies | 0.359 | — | 0.444 | — | — | — |
| Sealing-Groove Design | 0.345 | — | — | — | — | 0.374 |
| Kinematic Mechanisms | — | — | 0.428 | 0.349 | — | — |
L3 · Manufacturing
| Category | DFM | Draft | Min-Wall | CAM-Reach | Supp | Wall-Unif |
|---|---|---|---|---|---|---|
| DFM · 3-Axis CNC | 67.750 | — | 0.411 | 0.367 | — | — |
| DFM · Injection Mould | — | 0.347 | 0.446 | — | — | 0.359 |
| DFM · FDM 3D Print | 73.000 | — | 0.408 | — | 0.522 | — |
| CAM Toolpath Validity | — | — | — | 0.365 | — | — |
L4 · Cognition
| Category | ParamEdit | ConSolve | P-Range | FEA-σ | Para σ | Seed σ | Brier | EditLat |
|---|---|---|---|---|---|---|---|---|
| Constraint Solving & Editability | 0.420 | 0.430 | 0.361 | — | — | — | — | — |
| Reverse Engineering | — | — | — | — | — | — | — | — |
| 2-D Sketch Constraints | — | 0.402 | — | — | — | — | — | — |
| Functional Intent · FEA-Gated | — | — | — | 0.230 | — | — | — | — |
| Paraphrase Robustness | — | — | — | — | 0.079 | 0.057 | — | — |
| Confidence Calibration | — | — | — | — | — | — | 0.128 | — |
TASK-BY-TASK ARTIFACTS
PRIM-001Hollow cylinder (60 × 40 × 100)0.5340.00PRIM-007Right hexagonal prism with pitch fillet0.5260.00BOOL-003Coplanar-face union (knife-edge stress)0.4210.00BOOL-009High-genus subtraction (lattice block)0.3000.00BREP-004NURBS-handle goblet (G2 swept loft)0.0610.00SURF-002Compressor blade (NACA 65-(12)10)0.0860.00MECH-014L-bracket with M6 + slotted hole0.3970.00MECH-022Stepped shaft with retaining-ring groove0.2910.00MECH-027Planetary-gear carrier plate0.2050.00ASM-005Pin-in-hole, H7/g6 sliding fit0.3010.00ASM-011Dovetail slide (60° flanks)0.2930.00STD-002ISO 4762 M8×30 socket-head cap screw0.2470.00SHEET-003U-channel bracket, 1.5 mm Al, k=0.400.3320.00SEAL-001AS568-214 face-seal groove0.1820.00KIN-002Four-bar linkage, Grashof crank-rocker0.3630.00DFMCNC-0023-ax-machinable manifold block0.3470.00DFMMOLD-002Injection-mouldable enclosure half0.2070.00DFMFDM-008FDM-printable hinge (no support)0.5100.00CAM-0015-pocket plate, Ø3 endmill finish0.4020.00PARAM-006Editable flange (bolt circle param sweep)0.3150.00PARAM-013Editable bracket (length+30 %, hole→M8)0.2250.00REVENG-002Three-view ortho → bracket0.2350.00REVENG-009Three-view ortho → housing with cores0.0000.00SKETCH-003Tangent-arc transition profile0.3270.00FUNC-001Cantilever bracket — 250 N tip load, 6061-T6, SF≥40.0750.00FUNC-007Heat-sink fin array for 25 W TO-2200.0000.00PARA-0015× paraphrased L-bracket0.4360.00CAL-003Confidence-calibrated planetary carrier0.2380.00PRIM-002Sphere with planar cap0.6050.00PRIM-003Right truncated cone (frustum)0.4720.00PRIM-004Square-base pyramid frustum0.3990.00PRIM-005Tilted-axis box (30°)0.4040.00PRIM-009Hollow torus (Ø100 mean × Ø8 tube, 1 mm wall)0.2990.00BOOL-001Tangent cylinder onto cube (line-of-contact)0.5220.00BOOL-002Two interpenetrating spheres (lens intersection)0.4480.00BOOL-005ε-offset extrusion (sliver-face stress)0.3780.00BREP-001Periodic-spline cylinder (closed in U)0.0000.00BREP-002G1-only loft (tangent discontinuity)0.0000.00BREP-007Trimmed sphere with hole through pole0.0770.00SURF-001Ergonomic mug handle (revolved spline)0.3090.00SURF-007Mouse top-shell (Class-A)0.2680.00MECH-002Bearing block — two 6204 deep-groove bearings0.4140.00MECH-005Cam-follower lever (eccentric pivot)0.3880.00MECH-018Heat-set insert boss array (4× M3)0.3650.00MECH-031Threaded cap with diamond knurl0.3010.00ASM-001Threaded coupling M16×1.5 (male+female pair)0.2340.00ASM-008Spline shaft + hub (DIN 5480 W25×1.25×18)0.2890.00ASM-013Bayonet quarter-turn mount0.2180.00STD-001ISO 7050 self-tapping screw ST4.2 × 160.2750.00STD-005ISO 8734 dowel pin Ø6 m6 × 300.4180.00STD-008ASME B18.6.3 button-head 1/4-20 × 5/80.2930.00SHEET-001Box-pan with corner relief cuts0.2500.00SHEET-0073-bend electronics chassis0.3490.00SEAL-004AS568-218 piston-type radial groove0.3550.00SEAL-007ISO 3601-2 quad-ring face groove0.2260.00KIN-005Geneva drive — 4 station0.0000.00KIN-008Planetary gearset full mesh (sun + 3 planets + ring)0.2070.00DFMCNC-0054-pocket plate, R 0.5 internal corners0.3660.00DFMCNC-009Long-aspect bracket (vise-fixturable)0.3070.00DFMCNC-0135-axis-only fish-mouth saddle0.3530.00DFMMOLD-005Telephone handset shell0.1740.00DFMFDM-002Bridge-test calibration cube0.3440.00DFMFDM-011Print-in-place hinge0.0000.00CAM-005T-slot pocket array (Ø 8 + Ø 4 endmills)0.3310.00PARAM-009Configurable bottle (height + cap params)0.1830.00REVENG-005ABC dataset stepped pulley (multi-view)0.2310.00SKETCH-014Symmetric four-bar profile0.4040.00FUNC-003Heat-sink for 60 W CoB LED0.0250.00PARA-0055× paraphrased planetary carrier0.4530.00CAL-007Confidence-bracketed mounting flange0.3410.00