| from __future__ import annotations |
|
|
| from typing import Literal |
|
|
| from pydantic import BaseModel, Field |
|
|
|
|
| MaterialName = Literal["aluminum_6061", "aluminum_7075", "pla", "petg", "steel_1018"] |
| FeatureType = Literal[ |
| "rib", |
| "lightening_hole", |
| "boss", |
| "fillet_marker", |
| "hook_curve", |
| "clamp_jaw", |
| "stator_ring", |
| "stator_tooth", |
| "seat_panel", |
| "chair_leg", |
| "chair_back", |
| "chair_crossbar", |
| "decorative_curve", |
| "generic_panel", |
| "support_tube", |
| "curved_tube", |
| "flat_foot", |
| "armrest", |
| "headrest", |
| "tabletop", |
| "table_leg", |
| ] |
|
|
|
|
| class Feature(BaseModel): |
| type: FeatureType |
| x: float = 0.0 |
| y: float = 0.0 |
| x2: float = 0.0 |
| y2: float = 0.0 |
| width: float = 0.0 |
| height: float = 0.0 |
| radius: float = 0.0 |
| note: str = "" |
|
|
|
|
| class Hole(BaseModel): |
| x: float |
| y: float |
| radius: float |
|
|
|
|
| class Design(BaseModel): |
| title: str = "Untitled design" |
| rationale: str = "" |
| material: MaterialName = "aluminum_6061" |
| load_newtons: float = 120.0 |
| load_point_x_mm: float = 90.0 |
| load_point_y_mm: float = 0.0 |
| base_length_mm: float = 105.0 |
| base_width_mm: float = 44.0 |
| base_thickness_mm: float = 4.0 |
| fixed_holes: list[Hole] = Field(default_factory=list) |
| features: list[Feature] = Field(default_factory=list) |
| expected_failure_mode: str = "" |
| action_plan: list[str] = Field(default_factory=list) |
|
|
|
|
| class ToolAction(BaseModel): |
| tool: str |
| params: dict = Field(default_factory=dict) |
|
|
|
|
| class Material(BaseModel): |
| density_g_cm3: float |
| yield_mpa: float |
| young_mpa: float |
| thermal_w_mk: float |
| poisson: float = 0.33 |
|
|
|
|
| MATERIALS: dict[str, Material] = { |
| "aluminum_6061": Material(density_g_cm3=2.70, yield_mpa=276, young_mpa=69000, thermal_w_mk=167), |
| "aluminum_7075": Material(density_g_cm3=2.81, yield_mpa=503, young_mpa=71700, thermal_w_mk=130), |
| "pla": Material(density_g_cm3=1.24, yield_mpa=55, young_mpa=3500, thermal_w_mk=0.13), |
| "petg": Material(density_g_cm3=1.27, yield_mpa=50, young_mpa=2100, thermal_w_mk=0.20), |
| "steel_1018": Material(density_g_cm3=7.87, yield_mpa=370, young_mpa=200000, thermal_w_mk=51), |
| } |
|
|
|
|
| def sample_design() -> Design: |
| return Design( |
| title="Two-rib lightweight cantilever bracket", |
| rationale=( |
| "A broad thin base keeps bolt spacing stable, two diagonal ribs move material " |
| "toward the bending load path, and small lightening holes reduce mass away " |
| "from the fixed edge." |
| ), |
| material="aluminum_6061", |
| load_newtons=120, |
| load_point_x_mm=90, |
| load_point_y_mm=0, |
| base_length_mm=105, |
| base_width_mm=44, |
| base_thickness_mm=4, |
| fixed_holes=[Hole(x=12, y=-13, radius=3), Hole(x=12, y=13, radius=3)], |
| features=[ |
| Feature(type="rib", x=16, y=-14, x2=88, y2=-4, width=5, height=18, note="lower diagonal rib"), |
| Feature(type="rib", x=16, y=14, x2=88, y2=4, width=5, height=18, note="upper diagonal rib"), |
| Feature(type="rib", x=18, y=0, x2=96, y2=0, width=4, height=12, note="center spine rib"), |
| Feature(type="lightening_hole", x=52, y=-13, radius=4, note="low-stress pocket"), |
| Feature(type="lightening_hole", x=52, y=13, radius=4, note="low-stress pocket"), |
| Feature(type="boss", x=92, y=0, height=7, radius=6, note="load application boss"), |
| ], |
| expected_failure_mode="Bending stress at the fixed edge and rib roots.", |
| action_plan=[ |
| "Search the load path", |
| "Add ribs along tension/compression lines", |
| "Remove material from low-stress regions", |
| "Run simulation", |
| "Iterate dimensions", |
| ], |
| ) |
|
|
