cadquery/notebook_nueva/modelo.py

201 lines
5.2 KiB
Python

import cadquery2 as cq
from cadquery2 import exporters
# Base for the notebook. Basically a kbd base that extends back
# as much as possible
# Thickness of the outer material
shell_t = 3
# Size of the kbd board
kbd_height = 98
kbd_width = 286
kbd_angle = 5
# Size of the whole object
width = kbd_width + 2 * shell_t
height = 164 # Max bed size
thickness = 20 + shell_t # 20 inside
# Insert Positions
ti_radius = 2.35
ti_depth = 6.25
# Positions are determined by measuring the keyboard
# mounting holes
kbd_pillars = (
cq.Sketch()
.push(
[
(19, -16.5),
(133, -16.5),
(247.5, -16.5),
(24, -86),
(142.5, -91),
(261.5, -86),
]
)
.circle(6, mode="a")
# Holes for M3 threaded inserts
.circle(ti_radius, mode="s")
)
# These are placed where convenient, and are used to join the top and bottom
# parts of the case.
# Measured from top-left corner OUTSIDE
mounting_pillar_positions = [
(6, -6),
(width - 6, -6),
(width - 6, -40),
(120, -6),
(170, -6),
]
mounting_pillars = (
cq.Sketch()
.push(mounting_pillar_positions)
.trapezoid(12, 12, 90, mode="a")
.circle(1.8, mode="s")
)
screw_holes = cq.Sketch().push(mounting_pillar_positions).circle(3, mode="a")
battery_holder = (
cq.Sketch()
.polygon(
[(-67, 5), (0, 5), (0, -12), (-67, -12), (-67, 5)],
mode="a",
)
.trapezoid(83, 83, 90, mode="a")
.trapezoid(80, 80, 90, mode="s")
.polygon(
[(-67, 3), (0, 3), (0, -10), (-67, -10), (-67, 3)],
mode="s",
)
# Cutout for the
.polygon(
[(-67, 30), (0, 30), (0, 12), (-67, 12), (-67, 30)],
mode="s",
)
)
power_in = cq.Sketch().circle(5, mode="a")
usb_in = cq.Sketch().trapezoid(13, 5.5, 90, mode="a")
switch_in = cq.Sketch().trapezoid(13.5, 8.5, 90, mode="a")
# Motherboard mount
def model():
return (
cq.Workplane("XY")
.workplane(offset=thickness / 2)
.tag("mid_height")
# Hollow box
.box(width, height, thickness)
.edges("|Z")
.fillet(2)
.faces(">Z")
.shell(-shell_t)
# Battery holder
.workplaneFromTagged("mid_height")
.center(-width / 2 + shell_t + 65, height / 2 - shell_t - 45)
.placeSketch(battery_holder)
.extrude(-height / 2)
# Power cable inlet
.faces("<X")
.workplane(centerOption="CenterOfBoundBox")
.center(-height / 2 + shell_t + 48.5, -3)
.placeSketch(power_in)
.cutBlind(-shell_t)
# USB inlet
.faces(">X")
.workplane(centerOption="CenterOfBoundBox")
.center(-height / 2 + shell_t + 50, -5)
.placeSketch(usb_in)
.cutBlind(-shell_t)
# Hole for power switch
.faces(">Y")
.workplane(centerOption="CenterOfBoundBox")
.center(0, 0)
.placeSketch(switch_in)
.cutBlind(-shell_t)
# Slanted mounting pillars on the kbd top
.faces(">Z")
.workplane(centerOption="CenterOfBoundBox")
# Top-left kbd corner inside the box
.center(-width / 2 + shell_t, kbd_height - height / 2 + shell_t)
.transformed(rotate=cq.Vector(kbd_angle, 0, 0))
.tag("sloped")
.placeSketch(kbd_pillars)
.extrude(-1000)
# Remove the excess extrusion
.workplaneFromTagged("mid_height")
.transformed(offset=cq.Vector(0, 0, -thickness / 2))
.split(keepTop=True)
# Slope for the beyboard
.workplaneFromTagged("sloped")
.split(keepBottom=True)
# Pillars to join with top half
.workplaneFromTagged("mid_height")
.workplane(offset=-thickness / 2, centerOption="CenterOfBoundBox")
.center(-width / 2, height / 2)
.placeSketch(mounting_pillars)
.extrude(thickness)
# Holes to insert screws from the bottom
.workplaneFromTagged("mid_height")
.workplane(offset=-thickness / 2, centerOption="CenterOfBoundBox")
.center(-width / 2, height / 2)
.placeSketch(screw_holes)
# 13 is 20-7 (screw thread length - threaded insert depth)
.cutBlind(thickness - 13)
)
if __name__ == "__main__":
left_cutout = cq.Sketch().polygon(
[(0, 0), (160, 0), (160, -100), (135, -100), (135, -200), (0, -200), (0, 0)],
mode="a",
)
right_side = (
model()
.faces("<Z")
.workplaneFromTagged("mid_height")
.transformed(offset=cq.Vector(0, 0, -thickness / 2))
.center(-width / 2, height / 2)
.placeSketch(left_cutout)
.cutBlind(100)
)
exporters.export(right_side, "right_side.stl")
right_cutout = cq.Sketch().polygon(
[
(160, 0),
(width, 0),
(width, -height),
(135, -height),
(135, -100),
(160, -100),
(160, 0),
],
mode="a",
)
left_side = (
model()
.faces("<Z")
.workplaneFromTagged("mid_height")
.transformed(offset=cq.Vector(0, 0, -thickness / 2))
.center(-width / 2, height / 2)
.placeSketch(right_cutout)
.cutBlind(100)
)
exporters.export(left_side, "left_side.stl")
exporters.export(model(), "model.stl")