cadquery/notebook_nueva/keyboard.py

104 lines
2.5 KiB
Python

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