cadquery/monitor/case.py

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Python
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import cadquery2 as cq
from cadquery2 import exporters
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from parameters import *
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screen_cutout = (
cq.Sketch().trapezoid(screen_w, screen_l, 90, mode="a").reset().vertices().fillet(1)
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)
board_cutout = (
cq.Sketch().trapezoid(55, 50, 90, mode="a").reset().vertices("<X").fillet(5)
)
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cable_relief = (
cq.Sketch().trapezoid(width, 30, 90)
)
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segment_breaks_top = (
cq.Sketch()
.rarray(1, length, 1, 1)
.trapezoid(width / 3, 35, 110, mode="a")
.reset()
.vertices()
.fillet(5)
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)
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")
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# Case for the screen
case = (
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# Basic filleted box shape
cq.Workplane("bottom")
.lineTo(-width, 0)
.lineTo(-width, height)
.lineTo(0, height)
.close()
.extrude(length)
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.faces(">X")
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.shell(-shell_t)
.edges("|X")
.fillet(fillet_s)
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# 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)
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# Cutout for segment breaks
.faces(">Z")
.workplane(centerOption="CenterOfBoundBox")
.center(0, length / 2)
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.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)
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# 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)
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.extrude(1 + 1 + ti_depth - shell_t)
.faces("<Z")
.workplane(centerOption="CenterOfBoundBox")
.placeSketch(threaded_inserts)
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.cutBlind(-ti_depth)
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)
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exporters.export(case, "case.stl")