Trellis 3D
C · Conceptualcomposite 25.4 [18.1, 33.5]p5 0.0IRT θ 0.0
Microsoft Research· v1.0 (image-to-3D)· released 2024-12-15· Diffusion-3D· emits Mesh· open
Diffusion model over structured latents. Outputs a mesh only; STEP round-trip and BREP-fidelity tasks score 0 by definition.
solid: agent · dashed: human baseline
PER-CATEGORY SCORE (95 % CI)
Geometric Primitives
83.9
Boolean Robustness
23.7
BREP Fidelity
26.3
Free-form Surfaces
89.0
Parametric Mechanical Parts
25.5
Assembly & Mating
9.5
Standards Compliance
5.0
Sheet-Metal Bodies
26.7
Sealing-Groove Design
24.7
Kinematic Mechanisms
0.0
DFM · 3-Axis CNC
26.6
DFM · Injection Mould
14.6
DFM · FDM 3D Print
52.7
CAM Toolpath Validity
0.0
Constraint Solving & Editability
5.0
Reverse Engineering
41.0
2-D Sketch Constraints
12.6
Functional Intent · FEA-Gated
16.8
Paraphrase Robustness
65.8
Confidence Calibration
0.0
MEAN METRICS BY LAYER
L1 · Geometry
| Category | Vol IoU | Chamfer | Hausdorff | NormCons | Watert. | Manif. | Euler | STEP RT | P@1 |
|---|---|---|---|---|---|---|---|---|---|
| Geometric Primitives | 0.510 | 0.166 | — | — | — | 0.929 | — | — | — |
| Boolean Robustness | 0.085 | — | — | — | — | 0.863 | — | — | — |
| BREP Fidelity | — | — | — | — | — | 0.852 | — | — | — |
| Free-form Surfaces | — | 0.140 | 0.839 | 0.840 | — | — | — | — | — |
L2 · Engineering
| Category | Dim RMSE | GD&T | FeatRec | Mating | Fit-Cls | Std |
|---|---|---|---|---|---|---|
| Parametric Mechanical Parts | 0.497 | 0.059 | 0.203 | — | — | — |
| Assembly & Mating | — | — | 0.190 | 0.090 | 0.005 | — |
| Standards Compliance | — | 0.054 | — | — | — | 0.047 |
| Sheet-Metal Bodies | 0.544 | — | 0.218 | — | — | — |
| Sealing-Groove Design | 0.552 | — | — | — | — | 0.046 |
| Kinematic Mechanisms | — | — | — | — | — | — |
L3 · Manufacturing
| Category | DFM | Draft | Min-Wall | CAM-Reach | Supp | Wall-Unif |
|---|---|---|---|---|---|---|
| DFM · 3-Axis CNC | 50.200 | — | 0.203 | 0.094 | — | — |
| DFM · Injection Mould | — | 0.088 | 0.228 | — | — | 0.121 |
| DFM · FDM 3D Print | 63.800 | — | 0.226 | — | 0.565 | — |
| CAM Toolpath Validity | — | — | — | — | — | — |
L4 · Cognition
| Category | ParamEdit | ConSolve | P-Range | FEA-σ | Para σ | Seed σ | Brier | EditLat |
|---|---|---|---|---|---|---|---|---|
| Constraint Solving & Editability | 0.058 | 0.057 | 0.036 | — | — | — | — | — |
| Reverse Engineering | — | — | — | — | — | — | — | — |
| 2-D Sketch Constraints | — | 0.057 | — | — | — | — | — | — |
| Functional Intent · FEA-Gated | — | — | — | 0.085 | — | — | — | — |
| Paraphrase Robustness | — | — | — | — | 0.060 | 0.077 | — | — |
| Confidence Calibration | — | — | — | — | — | — | — | — |
TASK-BY-TASK ARTIFACTS
PRIM-001Hollow cylinder (60 × 40 × 100)0.5160.00PRIM-007Right hexagonal prism with pitch fillet0.5030.00BOOL-003Coplanar-face union (knife-edge stress)0.0490.00BOOL-009High-genus subtraction (lattice block)0.1210.00BREP-004NURBS-handle goblet (G2 swept loft)0.0150.00SURF-002Compressor blade (NACA 65-(12)10)0.5600.00MECH-014L-bracket with M6 + slotted hole0.0740.00MECH-022Stepped shaft with retaining-ring groove0.0290.00MECH-027Planetary-gear carrier plate0.0100.00ASM-005Pin-in-hole, H7/g6 sliding fit0.0000.00ASM-011Dovetail slide (60° flanks)0.0400.00STD-002ISO 4762 M8×30 socket-head cap screw0.0000.00SHEET-003U-channel bracket, 1.5 mm Al, k=0.400.1940.00SEAL-001AS568-214 face-seal groove0.0000.00KIN-002Four-bar linkage, Grashof crank-rocker0.0000.00DFMCNC-0023-ax-machinable manifold block0.0040.00DFMMOLD-002Injection-mouldable enclosure half0.0530.00DFMFDM-008FDM-printable hinge (no support)0.2030.00CAM-0015-pocket plate, Ø3 endmill finish0.0000.00PARAM-006Editable flange (bolt circle param sweep)0.0000.00PARAM-013Editable bracket (length+30 %, hole→M8)0.0000.00REVENG-002Three-view ortho → bracket0.5500.00REVENG-009Three-view ortho → housing with cores0.5280.00SKETCH-003Tangent-arc transition profile0.0400.00FUNC-001Cantilever bracket — 250 N tip load, 6061-T6, SF≥40.0000.00FUNC-007Heat-sink fin array for 25 W TO-2200.0000.00PARA-0015× paraphrased L-bracket0.5610.00CAL-003Confidence-calibrated planetary carrier0.0000.00