73 lines
2.3 KiB
Python
73 lines
2.3 KiB
Python
from dataclasses import dataclass, field
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from typing import Tuple
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import cadquery as Cq
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from nhf import Item, Role
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from nhf.parts.box import Hole, MountingBox
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import nhf.utils
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@dataclass(frozen=True)
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class ArduinoUnoR3(Item):
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# From datasheet
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mass: float = 25.0
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length: float = 68.6
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width: float = 53.4
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# with clearance
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base_height: float = 5.0
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# aesthetic only for illustrating clearance
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total_height: float = 50.0
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roof_height: float = 20.0
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# This is labeled in mirrored coordinates from top down (i.e. unmirrored from bottom up)
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holes: list[Tuple[float, float]] = field(default_factory=lambda: [
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(15.24, 2.54),
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(13.74, 50.80), # x coordinate not labeled on schematic
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(66.04, 17.78),
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(66.04, 45.72),
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])
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hole_diam: float = 3.0
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@property
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def name(self) -> str:
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return "Arduino Uno R3"
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@property
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def role(self) -> Role:
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return Role.ELECTRONIC
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def generate(self) -> Cq.Assembly:
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sketch = (
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Cq.Sketch()
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.polygon([
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(0,0),
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(self.length, 0),
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(self.length, self.width),
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(0,self.width)
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])
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.push([(x, self.width - y) for x,y in self.holes])
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.circle(self.hole_diam / 2, mode='s')
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)
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# pillar thickness
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t = 3.0
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pillar_height = self.total_height - self.base_height
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pillar = Cq.Solid.makeBox(
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t, t, pillar_height
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)
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roof = Cq.Solid.makeBox(
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self.length, self.width, t
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)
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result = (
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Cq.Workplane('XY')
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.placeSketch(sketch)
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.extrude(self.base_height)
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.union(pillar.located(Cq.Location((0, 0, self.base_height))))
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.union(pillar.located(Cq.Location((self.length - t, 0, self.base_height))))
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.union(pillar.located(Cq.Location((self.length - t, self.width - t, self.base_height))))
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.union(pillar.located(Cq.Location((0, self.width - t, self.base_height))))
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.union(roof.located(Cq.Location((0, 0, self.total_height - t))))
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)
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plane = result.copyWorkplane(Cq.Workplane('XY'))
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for i, (x, y) in enumerate(self.holes):
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plane.moveTo(x, self.width - y).tagPlane(f"conn{i}", direction='-Z')
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return result
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