cadquery/notebook_nueva/lid.py

109 lines
2.8 KiB
Python

import cadquery as cq
from cadquery import exporters
from modelo import mounting_pillar_positions, shell_t, width
from utils import hex_vents, punch_hole, extrude_shape2
# Dimensions for countersunk M4 screws
m4_top = 9
m4_bottom = 4
lip_thickness = 1.5
# Position of pillar + shell_t + pillar "radius" + lip
height = max([y for _, y in mounting_pillar_positions]) + 6 + shell_t + lip_thickness
thickness = shell_t
front_lip = 8
def model():
# Create the basic shape of the case bottom.
model = (
cq.Workplane("XY")
# Hollow box
.box(width, height, thickness)
.edges("|Z and >Y")
.fillet(2)
)
# Make many holes
vent = hex_vents(size=6, width=width * 0.9, height=height * 0.9)[0]
model = punch_hole(
model=model,
face=">Z",
w=width,
h=height,
x_offset=0.05 * width,
y_offset=0.05 * height,
hole=vent,
depth=thickness,
)
# Add screw holes
for position in mounting_pillar_positions:
model = (
model.faces(">Z")
.workplane(centerOption="CenterOfBoundBox")
.center(-width / 2 + position[0], height / 2 - position[1] - shell_t)
.placeSketch(cq.Sketch().circle(m4_top / 2 + 1.5))
.extrude(-thickness)
.faces(">Z")
.workplane(centerOption="CenterOfBoundBox")
.center(-width / 2 + position[0], height / 2 - position[1] - shell_t)
.cskHole(m4_bottom, m4_top, 82, depth=None)
)
# Add front lip
model = (
model.faces(">Z")
.workplane(centerOption="CenterOfBoundBox")
.center(0, -height / 2 + lip_thickness / 2)
.placeSketch(cq.Sketch().trapezoid(width - 2 * shell_t, lip_thickness, 90))
.extrude(-front_lip - thickness)
)
return model
def decorative_cover():
model = cq.Workplane("XY").box(10, height, 1).edges("|Z").fillet(1)
vent = hex_vents(size=6, width=width * 0.9, height=height * 0.9, density=0.775)[0]
model = extrude_shape2(
model=model,
face=">Z",
w=width,
h=height,
x_offset=0.05 * width,
y_offset=0.05 * height,
hole=vent,
depth=3,
)
return model
if __name__ == "__main__":
model = model()
exporters.export(model, "lid.stl")
cover = decorative_cover()
exporters.export(cover, "lid_cover.stl")
exporters.export(
model,
"lid.svg",
opt={
"projectionDir": (0, 0, 1),
},
)
exporters.export(
model.faces(">X").workplane(offset=-width / 2).split(keepTop=True),
"right_side_lid.stl",
)
exporters.export(
model.faces(">X").workplane(offset=-width / 2).split(keepBottom=True),
"left_side_lid.stl",
)