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Updated custom BuildSketch objects example
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Roger Maitland
parent
895e7c9a08
commit
2be9569955
1 changed files with 134 additions and 14 deletions
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@ -6,7 +6,10 @@ date: Jan 21st 2023
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desc:
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This example demonstrates user generated custom BuildSketch objects.
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This example demonstrates the creation of a Playing Card storage box with
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user generated custom BuildSketch objects. Four new BuildSketch objects are
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created: Club, Spade, Heart, and Diamond, which are then used to punch
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holes into the top of the box's lid.
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license:
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@ -27,35 +30,152 @@ license:
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from build123d import *
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class MyRectangle(BaseSketchObject):
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class Club(BaseSketchObject):
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"""Sketch Object: Club
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The club suit symbol from a playing card.
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Args:
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height (float): size along the Y-axis
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rotation (float, optional): angle from X-axis. Defaults to 0.
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centered (tuple[bool, bool], optional): Defaults to (True, True).
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mode (Mode, optional): combination mode. Defaults to Mode.ADD.
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"""
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def __init__(
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self,
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width: float,
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height: float,
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rotation: float = 0,
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centered: tuple[bool, bool] = (True, True),
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mode: Mode = Mode.ADD,
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):
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face = Face.make_rect(height, width)
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super().__init__(face, rotation, centered, mode)
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# Create the club shape
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# Note: The workplane and mode must be set here to avoid interactions with
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# builders in difference scopes.
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with BuildSketch(Plane.XY, mode=Mode.PRIVATE) as club:
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with BuildLine():
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l0 = Line((0, -188), (76, -188))
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b0 = Bezier(l0 @ 1, (61, -185), (33, -173), (17, -81))
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b1 = Bezier(b0 @ 1, (49, -128), (146, -145), (167, -67))
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b2 = Bezier(b1 @ 1, (187, 9), (94, 52), (32, 18))
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b3 = Bezier(b2 @ 1, (92, 57), (113, 188), (0, 188))
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Mirror(about=Plane.YZ)
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MakeFace()
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Scale(by=height / club.sketch.bounding_box().ylen)
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# Pass the shape to the BaseSketchObject class to create a new Club object
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super().__init__(
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face=club.sketch, rotation=rotation, centered=centered, mode=mode
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)
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class MyHole(BaseSketchObject):
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class Spade(BaseSketchObject):
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def __init__(
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self,
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radius: float,
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height: float,
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rotation: float = 0,
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centered: tuple[bool, bool] = (True, True),
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mode: Mode = Mode.SUBTRACT,
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mode: Mode = Mode.ADD,
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):
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face = Face.make_from_wires(Wire.make_circle(radius))
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super().__init__(face, rotation, centered, mode)
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with BuildSketch(Plane.XY, mode=Mode.PRIVATE) as spade:
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with BuildLine():
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b0 = Bezier((0, 198), (6, 190), (41, 127), (112, 61))
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b1 = Bezier(b0 @ 1, (242, -72), (114, -168), (11, -105))
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b2 = Bezier(b1 @ 1, (31, -174), (42, -179), (53, -198))
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l0 = Line(b2 @ 1, (0, -198))
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Mirror(about=Plane.YZ)
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MakeFace()
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Scale(by=height / spade.sketch.bounding_box().ylen)
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super().__init__(
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face=spade.sketch, rotation=rotation, centered=centered, mode=mode
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)
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with BuildSketch() as builder:
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MyRectangle(width=20, height=15, centered=(True, True), rotation=45)
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MyHole(radius=3)
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class Heart(BaseSketchObject):
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def __init__(
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self,
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height: float,
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rotation: float = 0,
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centered: tuple[bool, bool] = (True, True),
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mode: Mode = Mode.ADD,
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):
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with BuildSketch(Plane.XY, mode=Mode.PRIVATE) as heart:
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with BuildLine():
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b1 = Bezier((0, 146), (20, 169), (67, 198), (97, 198))
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b2 = Bezier(b1 @ 1, (125, 198), (151, 186), (168, 167))
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b3 = Bezier(b2 @ 1, (197, 133), (194, 88), (158, 31))
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b4 = Bezier(b3 @ 1, (126, -13), (94, -48), (62, -95))
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b5 = Bezier(b4 @ 1, (40, -128), (0, -198))
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Mirror(about=Plane.YZ)
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MakeFace()
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Scale(by=height / heart.sketch.bounding_box().ylen)
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super().__init__(
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face=heart.sketch, rotation=rotation, centered=centered, mode=mode
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)
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class Diamond(BaseSketchObject):
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def __init__(
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self,
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height: float,
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rotation: float = 0,
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centered: tuple[bool, bool] = (True, True),
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mode: Mode = Mode.ADD,
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):
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with BuildSketch(Plane.XY, mode=Mode.PRIVATE) as diamond:
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with BuildLine():
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Bezier((135, 0), (94, 69), (47, 134), (0, 198))
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Mirror(about=Plane.XZ)
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Mirror(about=Plane.YZ)
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MakeFace()
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Scale(by=height / diamond.sketch.bounding_box().ylen)
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super().__init__(
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face=diamond.sketch, rotation=rotation, centered=centered, mode=mode
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)
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# The inside of the box fits 2.5x3.5" playing card deck with a small gap
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pocket_w = 2.5 * IN + 2 * MM
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pocket_l = 3.5 * IN + 2 * MM
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pocket_t = 0.5 * IN + 2 * MM
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wall_t = 3 * MM # Wall thickness
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bottom_t = wall_t / 2 # Top and bottom thickness
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lid_gap = 0.5 * MM # Spacing between base and lid
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lip_t = wall_t / 2 - lid_gap / 2 # Lip thickness
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with BuildPart() as box_builder:
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with BuildSketch() as box_plan:
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RectangleRounded(pocket_w + 2 * wall_t, pocket_l + 2 * wall_t, pocket_w / 15)
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Extrude(amount=bottom_t + pocket_t / 2)
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base_top = box_builder.faces().sort_by(Axis.Z)[-1]
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with BuildSketch(base_top) as walls:
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Offset(box_plan.sketch, amount=-lip_t, mode=Mode.ADD)
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Extrude(amount=pocket_t / 2)
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with BuildSketch(Plane.XY.offset(wall_t / 2)):
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Offset(box_plan.sketch, amount=-wall_t, mode=Mode.ADD)
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Extrude(amount=pocket_t, mode=Mode.SUBTRACT)
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box = box_builder.part
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with BuildPart() as lid_builder:
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Add(box_plan.sketch)
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Extrude(amount=pocket_t / 2 + bottom_t)
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with BuildSketch() as pocket:
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Offset(box_plan.sketch, amount=-(wall_t - lip_t), mode=Mode.ADD)
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Extrude(amount=pocket_t / 2, mode=Mode.SUBTRACT)
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with BuildSketch(lid_builder.faces().sort_by(Axis.Z)[-1]) as suits:
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with Locations((-0.3 * pocket_w, 0.3 * pocket_l)):
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Heart(pocket_l / 5)
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with Locations((-0.3 * pocket_w, -0.3 * pocket_l)):
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Diamond(pocket_l / 5)
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with Locations((0.3 * pocket_w, 0.3 * pocket_l)):
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Spade(pocket_l / 5)
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with Locations((0.3 * pocket_w, -0.3 * pocket_l)):
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Club(pocket_l / 5)
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Extrude(amount=-wall_t, mode=Mode.SUBTRACT)
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lid = lid_builder.part.moved(Location((0, 0, (wall_t + pocket_t) / 2)))
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if "show_object" in locals():
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show_object(builder.sketch.wrapped)
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show_object(box, name="box")
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show_object(lid, name="lid", options={"alpha": 0.6})
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