Jerry
142 lines
3.3 KiB
Python
142 lines
3.3 KiB
Python
#!/usr/bin/env python3
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"""
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Generate a flat base plate derived from the top face of base_clamp.
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This part keeps the exact top-plate footprint and base-servo mounting pattern
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from the bent clamp, but strips away the side wall and lower return so it
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remains a single flat plate in the same local frame.
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"""
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from __future__ import annotations
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from dataclasses import dataclass
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import os
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import sys
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from pathlib import Path
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V1_DIR = Path(__file__).resolve().parents[1]
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TOM_DIR = V1_DIR.parent
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PARTS_DIR = Path(__file__).resolve().parent
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_CACHE_HOME = V1_DIR / ".cache"
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_CACHE_HOME.mkdir(parents=True, exist_ok=True)
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os.environ.setdefault("XDG_CACHE_HOME", str(_CACHE_HOME))
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import build123d
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for path in (TOM_DIR, PARTS_DIR):
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if str(path) not in sys.path:
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sys.path.insert(0, str(path))
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from base_clamp import (
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BASE_HORN_CONNECTION_HOLE_SPECS_MM,
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BASE_SERVO_M2_HOLE_SPECS_MM,
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CORNER_RADIUS_MM,
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PLATE_THICKNESS_MM,
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_as_single_solid,
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_build_bracket_layout,
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_cut_base_plate_mount_features,
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_fillet_plan_corners,
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_make_box,
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)
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DISPLAY_NAME = "Base Plate"
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@dataclass(frozen=True)
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class PlateLayout:
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x_min: float
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x_max: float
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y_min: float
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y_max: float
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z_min: float
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z_max: float
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width: float
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height: float
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face_y: float
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attachment_holes: tuple[tuple[float, float, float], ...]
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def _build_plate_layout() -> PlateLayout:
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bracket_layout = _build_bracket_layout()
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x_min = bracket_layout.x_min
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x_max = bracket_layout.side_x_max
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y_min = bracket_layout.y_min
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y_max = bracket_layout.y_max
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z_min = bracket_layout.z_min
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z_max = bracket_layout.z_max
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return PlateLayout(
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x_min=x_min,
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x_max=x_max,
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y_min=y_min,
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y_max=y_max,
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z_min=z_min,
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z_max=z_max,
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width=x_max - x_min,
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height=z_max - z_min,
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face_y=y_max,
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attachment_holes=bracket_layout.attachment_holes,
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)
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def build_plate() -> build123d.Solid:
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layout = _build_plate_layout()
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plate = _make_box(
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x_min=layout.x_min,
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x_max=layout.x_max,
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y_min=layout.y_min,
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y_max=layout.y_max,
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z_min=layout.z_min,
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z_max=layout.z_max,
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)
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plate = _fillet_plan_corners(
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plate,
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x_min=layout.x_min,
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x_max=layout.x_max,
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y_min=layout.y_min,
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y_max=layout.y_max,
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z_min=layout.z_min,
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z_max=layout.z_max,
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include_min_x=True,
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include_max_x=False,
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)
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plate = _cut_base_plate_mount_features(
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plate,
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holes_xzr=layout.attachment_holes,
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x_min=layout.x_min,
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x_max=layout.x_max,
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y_min=layout.y_min,
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y_max=layout.y_max,
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z_min=layout.z_min,
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z_max=layout.z_max,
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)
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plate = _as_single_solid(plate)
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print(
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f"{DISPLAY_NAME}: "
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f"width={layout.width:.3f} mm, "
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f"height={layout.height:.3f} mm, "
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f"thickness={PLATE_THICKNESS_MM:.3f} mm, "
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f"corner_radius={CORNER_RADIUS_MM:.3f} mm, "
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f"horn_m3_holes={len(BASE_HORN_CONNECTION_HOLE_SPECS_MM)}, "
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f"m2_holes={len(BASE_SERVO_M2_HOLE_SPECS_MM)}, "
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f"flush_y={layout.face_y:.4f} mm"
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)
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return plate
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def gen_step() -> dict[str, object]:
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return {
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"shape": build_plate(),
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}
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def gen() -> None:
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gen_step()
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if __name__ == "__main__":
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gen()
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