cadquery/monitor/modelo.py

import cadquery2 as cq
from cadquery2 import exporters

shell_t = 2.5

# width, length VISIBLE WITHIN THE BEZEL
screen_w = 223
screen_l = 57
# Distance from the left of the case to screen cutout
screen_left_margin = 7 + shell_t  #  (7 is bezel width on that side)
# width, length, height INCLUDING_BEZEL
display_w = 233
display_l = 65
display_h = 5

width = 250
height = display_h + 2 * shell_t + 1
length = display_l + 2 * shell_t + 1
fillet_s = 2


# Distance from the left of the case to display end
display_left_margin = screen_left_margin - 7
# Distance from the right of the case to display end
display_right_margin = width - display_left_margin - display_w
# Distance from the top of the case to display top
display_top_margin = (length - display_l) / 2
display_bottom_margin = display_top_margin  # Symmetrical


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

segment_breaks_top = (
    cq.Sketch()
    .rarray(width / 3, length, 2, 1)
    .trapezoid(5, 15, 110, mode="a")
    .reset()
    .vertices()
    .fillet(2)
)

segment_breaks_bottom = (
    cq.Sketch()
    .rarray(width / 3, length, 2, 1)
    .trapezoid(15, 15, 70, mode="a")
    .reset()
    .vertices()
    .fillet(2)
)

back_reinforcement = (
    cq.Sketch().trapezoid(width * 2 / 3, 15, 90, mode="a").reset().vertices().fillet(2)
)

threaded_inserts = cq.Sketch().rarray(width / 6, 0, 4, 1).circle(2.5, mode="a")

# Holder for the screen (other half of the case)
screen_base = (
    # 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)
    # Back reinforcement with holes for threaded inserts
    .faces("<Z")
    .workplane(centerOption="CenterOfBoundBox")
    .placeSketch(back_reinforcement)
    .extrude(1.5)
    .faces("<Z")
    .workplane(centerOption="CenterOfBoundBox")
    .placeSketch(threaded_inserts)
    .cutBlind(-3)
)

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