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feat: add a second latch option
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@gcollic
gcollic committed May 17, 2024
1 parent 91718ac commit e5f0637
Showing 1 changed file with 49 additions and 28 deletions.
77 changes: 49 additions & 28 deletions boxes/generators/sidehingebox.py
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Original file line number Diff line number Diff line change
Expand Up @@ -51,8 +51,8 @@ def __init__(self) -> None:
help="radius of the hinge inner circle")

self.argparser.add_argument(
"--cherrymx_latch", action="store", type=boolarg, default=False,
help="add a latch, based on 3D printing and a cherry mx compatible mechanical keyboard switch")
"--cherrymx_latches", action="store", type=int, default=0,
help="add one or two latches, based on 3D printing and a cherry mx compatible mechanical keyboard switch")


def render(self):
Expand All @@ -61,7 +61,7 @@ def render(self):
p = self.play * t
hinge_radius = self.hinge_radius
hinge_center = self.hinge_center if self.hinge_center else 2*t + hinge_radius
with_latch = self.cherrymx_latch
latches = self.cherrymx_latches
self.mx_width = 15.4
self.mx_length = t+16.4+2.8 #2.8 can be removed if the switch is trimmed flush

Expand All @@ -82,36 +82,44 @@ def render(self):
fingered_ho = ho - gap - 2*hinge_center

with self.saved_context():
self.inner_side(x, hi, hinge_center, hinge_radius, fingered_hi, with_latch=with_latch, reverse=True)
d_side_callback = [
lambda:self.fingerHolesAt(self.mx_length+t/2, 0, self.mx_width),
] if with_latch else None
self.rectangularWall(yi, hi, "fFeF", callback=d_side_callback, move="right", label="inner - full side D")
self.inner_side(x, hi, hinge_center, hinge_radius, fingered_hi)
self.inner_side(x, hi, hinge_center, hinge_radius, fingered_hi, latches, reverse=True)
self.rectangularWall(
yi,
hi,
"fFeF",
callback=[lambda:self.back_cb(yi, latches)],
move="right",
label="inner - full side D")
self.inner_side(x, hi, hinge_center, hinge_radius, fingered_hi, latches)
self.rectangularWall(0, hi, "ffef", move="up only")

with self.saved_context():
self.outer_side(x, ho, hinge_center, hinge_radius, fingered_ho, with_latch=with_latch)
self.outer_side(x, ho, hinge_center, hinge_radius, fingered_ho, latches)
with self.saved_context():
self.rectangularWall(yo, fingered_ho, "fFeF", move="up", label="outer - small side B")
self.moveTo(t+p,0)
self.rectangularWall(yi, fingered_hi, "eFfF", move="right", label="inner - small side B")
self.rectangularWall(yo, 0, "fFeF", move="right only")
self.outer_side(x, ho, hinge_center, hinge_radius, fingered_ho, reverse=True)
self.outer_side(x, ho, hinge_center, hinge_radius, fingered_ho, latches, reverse=True)
self.rectangularWall(0, ho, "ffef", move="up only")

bottom_callback = [
lambda:self.fingerHolesAt(x-self.mx_width-t/2, 0, self.mx_length),
lambda:self.fingerHolesAt(self.mx_length+t/2, 0, self.mx_width),
] if with_latch else None
lambda:self.back_cb(yi, latches),
lambda:self.fingerHolesAt(self.mx_width+t/2, 0, self.mx_length) if latches>1 else None,
] if latches else None
self.rectangularWall(x, yi, "FFFF", callback=bottom_callback, move="right", label="inner - bottom")
self.rectangularWall(x, yo, "FEFF", move="right", label="outer - upper lid")
for _ in range(2):
self.rectangularWall(2*t, 1.5*t, "eeee", move="right")
if with_latch:
self.rectangularWall(self.mx_width, self.mx_width, "eeee", move="right")
self.rectangularWall(self.mx_width, self.mx_width, "ffef", move="right")
self.rectangularWall(self.mx_length, self.mx_width, "ffeF", move="right")

if latches:
for _ in range(latches):
with self.saved_context():
self.rectangularWall(self.mx_width, self.mx_width, "eeee", move="right")
self.rectangularWall(self.mx_width, self.mx_width, "ffef", move="right")
self.rectangularWall(self.mx_length, self.mx_width, "ffeF", move="right")
self.rectangularWall(self.mx_length, self.mx_width, "ffeF", move="up only")
self.text(f"""
OpenSCAD code for 3D printing the cherry MX latch button:
#############################################
Expand Down Expand Up @@ -161,34 +169,47 @@ def render(self):
mx_inner();
}}""")


def inner_side_cb(self, x):
self.fingerHolesAt(x-self.mx_width-self.thickness/2, 0, self.mx_width)
self.circle(x-self.mx_width/2, self.mx_width/2, 5.7+self.burn)

def inner_side(self, x, h, hinge_center, hinge_radius, fingered_h, with_latch=False, reverse=False):
def back_cb(self, y, latches):
if latches>0:
self.fingerHolesAt(self.mx_length+self.thickness/2, 0, self.mx_width)
if latches>1:
self.fingerHolesAt(y-self.mx_length-self.thickness/2, 0, self.mx_width)

def inner_side_cb(self, x, reverse):
if reverse:
self.fingerHolesAt(x-self.mx_width-self.thickness/2, 0, self.mx_width)
self.circle(x-self.mx_width/2, self.mx_width/2, 5.7+self.burn)
else:
self.fingerHolesAt(self.mx_width+self.thickness/2, 0, self.mx_width)
self.circle(self.mx_width/2, self.mx_width/2, 5.7+self.burn)

def inner_side(self, x, h, hinge_center, hinge_radius, fingered_h, latches, reverse=False):
sides = Inner2SidesEdge(
self, x, h, hinge_center, hinge_radius, fingered_h, reverse
)
noop_edge = edges.NoopEdge(self, margin=self.thickness if reverse else 0)

self.rectangularWall(
x,
h,
["f", "f", sides, noop_edge] if reverse else["f", sides, noop_edge, "f"],
move="right",
label="inner - hinge side " + ("A" if reverse else "C"),
callback=[
lambda: self.inner_side_cb(x)
] if with_latch and reverse else None,
lambda: self.inner_side_cb(x, reverse)
] if (latches and reverse) or latches>1 else None,
)

def outer_side(self, x, h, hinge_center, hinge_radius, fingered_h, with_latch=False, reverse=False):
def outer_side(self, x, h, hinge_center, hinge_radius, fingered_h, latches, reverse=False):
t = self.thickness
sides = Outer2SidesEdge(
self, x, h, hinge_center, hinge_radius, fingered_h, reverse
)
noop_edge = edges.NoopEdge(self, margin=t if reverse else 0)

latch_x, latch_y = (t+self.mx_width/2, self.mx_width/2)
if reverse:
latch_x, latch_y = latch_y, latch_x
self.rectangularWall(
x,
h,
Expand All @@ -198,8 +219,8 @@ def outer_side(self, x, h, hinge_center, hinge_radius, fingered_h, with_latch=Fa
callback=[
None,
None,
lambda: self.circle(t+self.mx_width/2, self.mx_width/2, 5.7+self.burn)
] if with_latch and not reverse else None,
lambda: self.circle(latch_x, latch_y, 5.7+self.burn)
] if (latches and not reverse) or latches>1 else None,
)

class Inner2SidesEdge(edges.BaseEdge):
Expand Down

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