104 lines
2.5 KiB
Python
104 lines
2.5 KiB
Python
import cadquery as cq
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import math
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# Size of the kbd board
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kbd_height = 95.5
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kbd_width = 305
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back_thickness = 17
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front_thickness = 10
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# Pythagoras
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actual_height = (kbd_height**2 - (back_thickness - front_thickness) ** 2) ** 0.5
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kbd_angle = math.acos(actual_height / kbd_height) * 180 / math.pi
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kbd_pillar_positions = [
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(18.25, 16),
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(142.5, 25.5),
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(kbd_width - 20, 16),
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(23.5, 79.5),
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(145.5, 82.5),
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(kbd_width - 19, 79.5),
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]
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elements = [
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# Shorter pillars
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{
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"x": 0,
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"y": 0,
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"z": 5.5,
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"shape": cq.Sketch().push(kbd_pillar_positions).circle(5, mode="a"),
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},
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# Taller pillars with holes for self-tapping screws
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{
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"x": 0,
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"y": 0,
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"z": 2.5,
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"shape": (
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cq.Sketch()
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.push(kbd_pillar_positions)
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.circle(2.4, mode="a")
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.circle(1.1, mode="s")
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),
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},
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]
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def add(
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*,
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model,
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width,
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height,
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thickness,
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offset_x,
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offset_y,
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bottom_face,
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back_face,
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shell_t
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):
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# This one is special, it creates angled things and cuts off the
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# case, so ... it's going to do weird stuff
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if bottom_face:
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model = (
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model.faces(bottom_face)
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.workplane(centerOption="CenterOfBoundBox", offset=-front_thickness)
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.center(
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-width / 2,
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height / 2,
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)
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.transformed(rotate=cq.Vector(kbd_angle, 0, 0))
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.tag("kbd_sloped")
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)
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for element in elements:
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model = (
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model.workplaneFromTagged("kbd_sloped")
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.center(offset_x + element["x"], -offset_y - element["y"])
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.workplane(offset=element["z"])
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.placeSketch(element["shape"])
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.extrude(100)
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)
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model = (
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model.workplaneFromTagged("mid_height")
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.transformed(offset=cq.Vector(0, 0, -thickness / 2))
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.split(keepTop=True)
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.faces(">X")
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.workplane(centerOption="CenterOfBoundBox")
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.center(-height / 2, -thickness / 2)
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.placeSketch(
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cq.Sketch().polygon(
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[
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[0, front_thickness],
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[actual_height, back_thickness],
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[actual_height, 1000],
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[0, 1000],
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[0, front_thickness],
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]
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)
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)
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.cutBlind(-1000)
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)
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return model
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