Hacky hinged lid WIP

This commit is contained in:
Roberto Alsina 2023-04-05 17:35:11 -03:00
parent e5308b8b24
commit 3618e9c4f9
3 changed files with 314 additions and 40 deletions

View File

@ -7,76 +7,99 @@ from modelo import (
ti_depth,
ti_radius,
width,
thickness as model_thickness,
shell_t,
)
import keyboard
import screen_mount
hinge_radius = 6
screw_radius = 1.5 # M3
ring_radius = 5 # M3
hinge_offset = max(p[1] for p in mounting_pillar_positions) + 6
thickness = 5
hinge_width = 25
thickness = 50
distance_to_kbd_top = hinge_radius + 15 # measure
def model():
# Create the basic shape of the case bottom.
# Create a 2-part hinged lid
model = (
cq.Workplane("XY")
# Hollow box
.box(width, height, 5)
.workplane(offset=-thickness / 2)
.box(width, height, thickness)
.faces("<Z")
.shell(-shell_t)
# Outer surface of the hinge
.faces(">X")
.workplane(centerOption="CenterOfBoundBox")
.center(height / 2 - hinge_offset, -hinge_radius + thickness / 2)
.center(height / 2 - hinge_offset, thickness / 2 - hinge_radius)
.tag("rightSide")
.placeSketch(cq.Sketch().circle(hinge_radius))
.extrude(-width)
# Cut middle section
.faces(">X")
.workplane(centerOption="CenterOfBoundBox", offset=-hinge_width)
.center(height / 2 - hinge_offset, 0)
.placeSketch(cq.Sketch().trapezoid(hinge_radius * 2 + 0.1, 20, 90))
.cutBlind(-width + 2 * hinge_width)
# Cut middle section between the hinges
.workplaneFromTagged("rightSide")
.workplane(offset=-hinge_width)
.placeSketch(
cq.Sketch().polygon(
[
(-hinge_radius, -hinge_radius),
(-hinge_radius, 0),
(-hinge_radius - shell_t, hinge_radius),
(-shell_t, hinge_radius),
(-shell_t, hinge_radius - shell_t),
(hinge_radius, hinge_radius - shell_t),
(hinge_radius, -hinge_radius),
(-hinge_radius, -hinge_radius),
]
)
)
.cutBlind(-width + 2 * hinge_width - 1)
# Hole for screws
.faces(">X")
.workplane(centerOption="CenterOfBoundBox")
.center(height / 2 - hinge_offset, 0)
.workplaneFromTagged("rightSide")
.placeSketch(cq.Sketch().circle(screw_radius))
.cutBlind(-width)
# Holes for rings & screw heads
.faces(">X")
.workplane(centerOption="CenterOfBoundBox")
.center(height / 2 - hinge_offset, 0)
.workplaneFromTagged("rightSide")
.placeSketch(cq.Sketch().circle(ring_radius))
.cutBlind(-5)
.faces(">X")
.workplane(centerOption="CenterOfBoundBox", offset=-width + 4)
.center(height / 2 - hinge_offset, 0)
.workplaneFromTagged("rightSide")
.workplane(offset=-width + 4)
.placeSketch(cq.Sketch().circle(ring_radius))
.cutBlind(-5)
# Split hinge halves
.faces(">X")
.workplane(centerOption="CenterOfBoundBox", offset=-hinge_width / 2)
.center(height / 2 - hinge_offset, 0)
.workplaneFromTagged("rightSide")
.workplane(offset=-hinge_width / 2)
.placeSketch(cq.Sketch().trapezoid(hinge_radius * 2 + 1, hinge_radius * 2, 90))
.cutBlind(2)
.faces(">X")
.workplane(centerOption="CenterOfBoundBox", offset=-width + hinge_width / 2)
.center(height / 2 - hinge_offset, 0)
.cutBlind(-1)
.workplaneFromTagged("rightSide")
.workplane(offset=-hinge_width)
.placeSketch(cq.Sketch().trapezoid(hinge_radius * 2 + 1, hinge_radius * 2, 90))
.cutBlind(-1)
.workplaneFromTagged("rightSide")
.workplane(offset=-width + hinge_width / 2)
.placeSketch(cq.Sketch().trapezoid(hinge_radius * 2 + 1, hinge_radius * 2, 90))
.cutBlind(-1)
.workplaneFromTagged("rightSide")
.workplane(offset=-width + hinge_width)
.placeSketch(cq.Sketch().trapezoid(hinge_radius * 2 + 1, hinge_radius * 2, 90))
.cutBlind(-1)
# Threaded inserts
.faces(">X")
.workplane(centerOption="CenterOfBoundBox", offset=-hinge_width / 2)
.center(height / 2 - hinge_offset, 0)
.workplaneFromTagged("rightSide")
.workplane(offset=-hinge_width / 2)
.placeSketch(cq.Sketch().circle(ti_radius))
.cutBlind(-ti_depth)
.faces(">X")
.workplane(centerOption="CenterOfBoundBox", offset=-width + hinge_width / 2)
.center(height / 2 - hinge_offset, 0)
.workplaneFromTagged("rightSide")
.workplane(offset=-width + hinge_width / 2)
.placeSketch(cq.Sketch().circle(ti_radius))
.cutBlind(ti_depth)
# Split two halves
# First cut for the right hinge
.workplaneFromTagged("rightSide")
.placeSketch(
cq.Sketch()
@ -84,14 +107,24 @@ def model():
[
(0, 0),
(-hinge_radius - 0.2, 0),
(-hinge_radius - 0.2, hinge_radius),
(-hinge_radius - shell_t, hinge_radius),
(0, hinge_radius),
(0, 0),
]
)
.polygon(
[
(-hinge_radius - 0.2, 0),
(-hinge_radius - 0.2, -1000),
(-hinge_radius, -1000),
(-hinge_radius, 0),
(-hinge_radius - 0.2, 0),
]
)
.circle(hinge_radius, mode="s")
)
.cutBlind("next")
.cutBlind(-hinge_width / 2 - 1)
# Second cut for the right hinge
.workplaneFromTagged("rightSide")
.workplane(offset=-hinge_width / 2)
.placeSketch(
@ -100,30 +133,32 @@ def model():
[
(0, 0),
(hinge_radius + 0.2, 0),
(hinge_radius + 0.2, hinge_radius),
(hinge_radius + 0.2 + shell_t, hinge_radius),
(0, hinge_radius),
(0, 0),
]
)
.circle(hinge_radius, mode="s")
)
.cutBlind(-hinge_width/2)
.cutBlind(-hinge_width / 2 - 1)
# First cut for the left hinge
.workplaneFromTagged("rightSide")
.workplane(offset=-width+hinge_width)
.workplane(offset=-width + hinge_width)
.placeSketch(
cq.Sketch()
.polygon(
[
(0, 0),
(hinge_radius + 0.2, 0),
(hinge_radius + 0.2, hinge_radius),
(hinge_radius + 0.2 + shell_t, hinge_radius),
(0, hinge_radius),
(0, 0),
]
)
.circle(hinge_radius, mode="s")
)
.cutBlind(-hinge_width / 2)
.cutBlind(-hinge_width / 2 - 1)
# Second cut for the left hinge
.workplaneFromTagged("rightSide")
.workplane(offset=-width + hinge_width / 2)
.placeSketch(
@ -132,14 +167,45 @@ def model():
[
(0, 0),
(-hinge_radius - 0.2, 0),
(-hinge_radius - 0.2, hinge_radius),
(-hinge_radius - shell_t, hinge_radius),
(0, hinge_radius),
(0, 0),
]
)
.polygon(
[
(-hinge_radius - 0.2, 0),
(-hinge_radius - 0.2, -1000),
(-hinge_radius, -1000),
(-hinge_radius, 0),
(-hinge_radius - 0.2, 0),
]
)
.circle(hinge_radius, mode="s")
)
.cutBlind(-hinge_width / 2)
.cutBlind(-hinge_width / 2 - 1)
)
# Cut off shape of the base
model = (
model.workplaneFromTagged("rightSide")
.center(-height + hinge_offset, -thickness + hinge_radius)
.placeSketch(
cq.Sketch().polygon(
[
(0, 0),
(0, keyboard.front_thickness),
(shell_t, keyboard.front_thickness),
(keyboard.actual_height + shell_t, keyboard.back_thickness),
(keyboard.actual_height + shell_t, model_thickness),
(height, model_thickness),
(height, 0),
(0, 0),
]
)
)
.cutBlind(-1000)
)
return model
@ -147,4 +213,14 @@ def model():
if __name__ == "__main__":
model = model()
exporters.export(model, "hinged_lid.stl")
exporters.export(
model,
"hinged_lid.svg",
opt={
"projectionDir": (0, 0, 1),
"strokeWidth": 0.3,
},
)

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@ -0,0 +1,198 @@
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<svg
xmlns:svg="http://www.w3.org/2000/svg"
xmlns="http://www.w3.org/2000/svg"
width="800.0"
height="240.0"
>
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