model-a/components/simple_lid.py

108 lines
2.8 KiB
Python

import cadquery as cq
import dimensions as dim
from utils import extrude_shape2, hex_vents, punch_hole, export
def model():
# Create the basic shape of the case lid
model = (
cq.Workplane("XY")
# Hollow box
.box(dim.width, dim.sl_height, dim.sl_thickness)
.edges("|Z and >Y")
.fillet(2)
)
# Make many holes
vent = hex_vents(size=6, width=dim.width * 0.9, height=dim.sl_height * 0.9)[0]
model = punch_hole(
model=model,
face=">Z",
w=dim.width,
h=dim.sl_height,
x_offset=0.05 * dim.width,
y_offset=0.05 * dim.sl_height,
hole=vent,
depth=dim.sl_thickness,
)
# Add screw holes
for position in dim.mounting_pillar_positions:
model = (
model.faces(">Z")
.workplane(centerOption="CenterOfBoundBox")
.center(
-dim.width / 2 + position[0],
dim.sl_height / 2 - position[1] - dim.shell_t,
)
.placeSketch(cq.Sketch().circle(dim.m4_top / 2 + 1.5))
.extrude(-dim.sl_thickness)
.faces(">Z")
.workplane(centerOption="CenterOfBoundBox")
.center(
-dim.width / 2 + position[0],
dim.sl_height / 2 - position[1] - dim.shell_t,
)
.cskHole(dim.m4_bottom, dim.m4_top, 82, depth=None)
)
# Add front lip
model = (
model.faces(">Z")
.workplane(centerOption="CenterOfBoundBox")
.center(0, -dim.sl_height / 2 + dim.sl_lip_thickness / 2)
.placeSketch(
cq.Sketch().trapezoid(dim.width - 2 * dim.shell_t, dim.sl_lip_thickness, 90)
)
.extrude(-dim.sl_front_lip - dim.sl_thickness)
)
return model
def decorative_cover():
# A decorative thingie to cover the ugly seam in the middle
model = cq.Workplane("XY").box(10, dim.sl_height, 1).edges("|Z").fillet(1)
vent = hex_vents(
size=6, width=dim.width * 0.9, height=dim.sl_height * 0.9, density=0.775
)[0]
model = extrude_shape2(
model=model,
face=">Z",
w=dim.width,
h=dim.sl_height,
x_offset=0.05 * dim.width,
y_offset=0.05 * dim.sl_height,
hole=vent,
depth=3,
)
return model
if __name__ == "__main__":
model = model()
export(model, "simple_lid.stl")
cover = decorative_cover()
export(cover, "simple_lid_cover.stl")
export(
model,
"simple_lid.svg",
opt={
"projectionDir": (0, 0, 1),
},
)
export(
model.faces(">X").workplane(offset=-dim.width / 2).split(keepTop=True),
"simple_lid_right.stl",
)
export(
model.faces(">X").workplane(offset=-dim.width / 2).split(keepBottom=True),
"simple_lid_left.stl",
)