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tool/light
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main
Author | SHA1 | Date |
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Leni Aniva | 9563501327 |
12
nhf/build.py
12
nhf/build.py
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@ -90,7 +90,7 @@ class Target:
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x = (
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Cq.Workplane()
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.add(x._faces)
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.add(x.wires)
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.add(x._wires)
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.add(x._edges)
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)
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assert isinstance(x, Cq.Workplane)
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@ -214,7 +214,7 @@ class Submodel:
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def write_to(self, obj, path: str):
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x = self._method(obj)
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assert isinstance(x, Model), f"Unexpected type: {type(x)}"
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x.build_all(path, prefix=False)
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x.build_all(path)
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@classmethod
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def methods(cls, subject):
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@ -271,17 +271,11 @@ class Model:
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total += 1
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return total
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def build_all(
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self,
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output_dir: Union[Path, str] = "build",
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prefix: bool = True,
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verbose=1):
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def build_all(self, output_dir: Union[Path, str] = "build", verbose=1):
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"""
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Build all targets in this model and write the results to file
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"""
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output_dir = Path(output_dir)
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if prefix:
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output_dir = output_dir / self.name
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targets = Target.methods(self)
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for t in targets.values():
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file_name = t.file_name
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@ -1,121 +0,0 @@
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from dataclasses import dataclass
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import cadquery as Cq
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from nhf import Material, Role
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from nhf.build import Model, target, assembly, TargetKind, submodel
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from nhf.parts.box import MountingBox, Hole
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from nhf.parts.electronics import ArduinoUnoR3
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import nhf.utils
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@dataclass
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class LightPanel(Model):
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# Dimensions of the base panel
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length: float = 300.0
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width: float = 200.0
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grid_height: float = 30.0
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grid_top_height: float = 5.0
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# Distance from grid to edge
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grid_margin: float = 20.0
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# Number of holes in each row of the grid
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grid_holes: int = 9
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grid_layers: int = 6
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grid_hole_width: float = 15.0
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base_thickness: float = 25.4/16
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grid_thickness: float = 25.4/4
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base_material: Material = Material.WOOD_BIRCH
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grid_material: Material = Material.ACRYLIC_TRANSPARENT
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controller: ArduinoUnoR3 = ArduinoUnoR3()
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def __post_init__(self):
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assert self.grid_holes >= 2
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super().__init__(name="light-panel")
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@target(name="grid", kind=TargetKind.DXF)
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def grid_profile(self):
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w = self.length - self.grid_margin * 2
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h = self.grid_height + self.grid_top_height
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# The width of one hole (w0) satisfies
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# n * w0 + (n+1) t = w
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# where t is the thickness of the edge
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n = self.grid_holes
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w0 = self.grid_hole_width
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t = (w - n * w0) / (n + 1)
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# The spacing is such that the first and last holes are a distance `margin`
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# away from the edges, so it satisfies
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# t + w0/2 + (n-1) * s + w0/2 + t = w
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step = (w - t*2 - w0) / (n - 1)
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return (
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Cq.Sketch()
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.push([(0, h/2)])
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.rect(w, h)
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.push([
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(i * step + t + w0/2 - w/2, self.grid_height/2)
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for i in range(0, n)
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])
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.rect(w0, self.grid_height, mode='s')
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)
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def grid(self) -> Cq.Workplane:
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return (
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Cq.Workplane('XY')
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.placeSketch(self.grid_profile())
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.extrude(self.grid_thickness)
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)
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@submodel(name="base")
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def base(self) -> MountingBox:
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xshift = self.length / 2 - self.controller.length - self.grid_margin / 2
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yshift = self.grid_margin / 2
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holes = [
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Hole(
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x=x + xshift, y=y + yshift,
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diam=self.controller.hole_diam,
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tag=f"controller_conn{i}",
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)
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for i, (x, y) in enumerate(self.controller.holes)
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]
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return MountingBox(
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holes=holes,
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hole_diam=self.controller.hole_diam,
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length=self.length,
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width=self.width,
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centred=(True, False),
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thickness=self.base_thickness,
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)
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def assembly(self) -> Cq.Assembly:
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assembly = (
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Cq.Assembly()
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.addS(
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self.base().generate(),
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name="base",
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role=Role.STRUCTURE,
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material=self.base_material,
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)
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)
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# Grid thickness t is fixed, so the spacing of the grid satisfies
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# margin + t + (n-1) * spacing + margin = width
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spacing = (self.width - 2 * self.grid_margin - self.grid_thickness) / (self.grid_layers - 1)
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shift = self.grid_margin + self.grid_thickness / 2
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for i in range(self.grid_layers):
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assembly = assembly.addS(
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self.grid(),
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name=f"grid_{i}",
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role=Role.STRUCTURE,
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material=self.grid_material,
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loc=Cq.Location(0, spacing * i + shift, self.base_thickness, 90, 0, 0),
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)
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return assembly
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if __name__ == '__main__':
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import sys
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p = LightPanel()
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if len(sys.argv) == 1:
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p.build_all()
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sys.exit(0)
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