cadquery/monitor/case.py

import cadquery2 as cq
from cadquery2 import exporters

from parameters import *

screen_cutout = (
    cq.Sketch().trapezoid(screen_w, screen_l, 90, mode="a").reset().vertices().fillet(1)
)

board_cutout = (
    cq.Sketch().trapezoid(55, 50, 90, mode="a").reset().vertices("<X").fillet(5)
)

cable_relief = (
    cq.Sketch().trapezoid(width, 30, 90)
)

segment_breaks_top = (
    cq.Sketch()
    .rarray(1, length, 1, 1)
    .trapezoid(width / 3, 35, 110, mode="a")
    .reset()
    .vertices()
    .fillet(5)
)

segment_breaks_bottom = (
    cq.Sketch()
    .rarray(1, length, 1, 1)
    .trapezoid(width / 3, 35, 70, mode="a")
    .reset()
    .vertices()
    .fillet(5)
)

back_reinforcement = (
    cq.Sketch().trapezoid(width / 2, 15, 90, mode="a").reset().vertices().fillet(2)
)

threaded_inserts = cq.Sketch().rarray(width / 8, 0, 4, 1).circle(ti_radius, mode="a")

# Case for the screen
case = (
    # Basic filleted box shape
    cq.Workplane("bottom")
    .lineTo(-width, 0)
    .lineTo(-width, height)
    .lineTo(0, height)
    .close()
    .extrude(length)
    .faces(">X")
    .shell(-shell_t)
    .edges("|X")
    .fillet(fillet_s)
    # Cutout visible screen area from top face
    .faces(">Z")
    .workplane(centerOption="CenterOfBoundBox")
    .center((width - screen_w) / 2 - screen_left_margin, 0)
    .placeSketch(screen_cutout)
    .cutBlind(-shell_t)
    # Cutout for segment breaks
    .faces(">Z")
    .workplane(centerOption="CenterOfBoundBox")
    .center(0, length / 2)
    .placeSketch(segment_breaks_top)
    .cutBlind(-1000)
    .center(0, -length)
    .placeSketch(segment_breaks_bottom)
    .cutBlind(-1000)
    # Cutout for the circuit board
    .faces("<Z")
    .workplane(centerOption="CenterOfBoundBox")
    .center(width / 2 - 27.5, 0)
    .placeSketch(board_cutout)
    .cutBlind(-shell_t)
    # Make some room for the ribbon cable
    .faces("<Z[-2]")
    .workplane(centerOption="CenterOfBoundBox")
    .placeSketch(cable_relief)
    .cutBlind(-1)
    # Back reinforcement with holes for threaded inserts
    .faces("<Z")
    .workplane(centerOption="CenterOfBoundBox")
    .placeSketch(back_reinforcement)
    .extrude(1 + 1 + ti_depth - shell_t)
    .faces("<Z")
    .workplane(centerOption="CenterOfBoundBox")
    .placeSketch(threaded_inserts)
    .cutBlind(-ti_depth)
)

exporters.export(case, "case.stl")