def stone(length):
return group()(translate(-groove_inner_width / 2, 0,
groove_wall_thickness)(cube(
groove_inner_width, length,
groove_depth)),
translate(-groove_width / 2, 0,
0)(cube(groove_width, length,
groove_wall_thickness)))
def make_alignment():
root = translate(-groove_width / 2, plate_length / 2,
0)(cube(groove_width, side_length,
groove_depth + groove_wall_thickness),
translate(0, 0, -groove_width)(cube(
half_width + groove_width * 1.5,
side_length, groove_width)))
return root
def make_inner():
y_positions = [
half_width * (2 * i - len(hole_modes) + 1)
for i in range(len(hole_modes))
]
root = group()
for i in range(len(hole_modes)):
if hole_modes[i] in ("left", "right"):
root(
visibleHole(
self.screw_metric.screw_from_to(
0, y_positions[i], -10, 0, y_positions[i], 0)))
stone_left, stone_right = (
stone_size_long,
stone_size_short) if hole_modes[i] == "left" else (
stone_size_short, stone_size_long)
root(
visibleHole(
translate(-groove_width / 2,
y_positions[i] - stone_left + EPSILON,
0)(cube(
groove_width, stone_size_long +
stone_size_short - 2 * EPSILON,
groove_depth))))
elif hole_modes[i] == "pin":
root(
self.screw_metric.screw_from_to(
0, y_positions[i], 0, 0, y_positions[i],
-groove_width)),
root(
translate(0, y_positions[i] - stone_size_long,
0)(stone(2 * stone_size_long)))
# make inner spacers
for i in range(len(hole_modes) - 1):
padding_left = stone_size_short if hole_modes[
i] == "left" else stone_size_long
padding_right = stone_size_short if hole_modes[
i + 1] == "right" else stone_size_long
length = half_width * 2 - padding_left - padding_right
begin = y_positions[i] + padding_left
root(translate(0, begin, 0)(stone(length)))
padding = (stone_size_short
if hole_modes[0] == "right" else stone_size_long)
root(
translate(0, -plate_length / 2, 0)(
stone(plate_length / 2 + y_positions[0] - padding)))
padding = (stone_size_short
if hole_modes[-1] == "left" else stone_size_long)
root(
translate(0, y_positions[-1] + padding, 0)(
stone(plate_length / 2 - y_positions[-1] - padding)))
return root
def make_connection():
root = translate(0, 0, 0)(
translate(-groove_width - half_width, plate_length / 2,
-groove_width)(cube(half_width + groove_width,
side_length, groove_width)),
translate(-groove_width, 0,
-groove_width)(cube(side_length,
plate_length / 2 + side_length,
groove_width)),
visibleHole(
self.screw_metric.screw_from_to(0,
0,
-groove_width,
0,
0,
0,
head="hexkey")))
return root
def make_screws(self, center, length, rotation, rotation2=0.0, **kwargs):
positions = [
-self.width / 2 + 0.5 * (2 * i + 1) / self.num_screws * self.width
for i in range(self.num_screws)
]
root = translate(*center)(rotate(0, 0, rotation)(rotate(
0, rotation2, 0)([
self.screw_metric.screw_from_to(positions[i], 0, length,
positions[i], 0, 0, **kwargs)
for i in range(self.num_screws)
])))
return root
def make_plate_alignment(self,
hole_modes,
shape,
plate_length,
printable=False):
# hole distance not needed (can be calculated from profile data)
"""hole_modes: list of stone alignments:
left: long side of stone left
right: long side of stone right
pin: printed alignment pin without stone
shape:
corner: holes on top, connection on side
top: holes on first rail, connection on second rail (only possible with 2+ rails)
far_corner: holes on first rail, connection on opposing side (only possible with 2+ rails)
"""
groove_width = 6.0
groove_depth = 2.0
groove_inner_width = 8.0
groove_wall_thickness = 1.0
stone_size_short = 3.0
stone_size_long = 5.0
side_length = 2 * groove_width
half_width = self.width / self.num_screws / 2
def make_alignment():
root = translate(-groove_width / 2, plate_length / 2,
0)(cube(groove_width, side_length,
groove_depth + groove_wall_thickness),
translate(0, 0, -groove_width)(cube(
half_width + groove_width * 1.5,
side_length, groove_width)))
return root
def make_connection():
root = translate(0, 0, 0)(
translate(-groove_width - half_width, plate_length / 2,
-groove_width)(cube(half_width + groove_width,
side_length, groove_width)),
translate(-groove_width, 0,
-groove_width)(cube(side_length,
plate_length / 2 + side_length,
groove_width)),
visibleHole(
self.screw_metric.screw_from_to(0,
0,
-groove_width,
0,
0,
0,
head="hexkey")))
return root
def stone(length):
return group()(translate(-groove_inner_width / 2, 0,
groove_wall_thickness)(cube(
groove_inner_width, length,
groove_depth)),
translate(-groove_width / 2, 0,
0)(cube(groove_width, length,
groove_wall_thickness)))
def make_inner():
y_positions = [
half_width * (2 * i - len(hole_modes) + 1)
for i in range(len(hole_modes))
]
root = group()
for i in range(len(hole_modes)):
if hole_modes[i] in ("left", "right"):
root(
visibleHole(
self.screw_metric.screw_from_to(
0, y_positions[i], -10, 0, y_positions[i], 0)))
stone_left, stone_right = (
stone_size_long,
stone_size_short) if hole_modes[i] == "left" else (
stone_size_short, stone_size_long)
root(
visibleHole(
translate(-groove_width / 2,
y_positions[i] - stone_left + EPSILON,
0)(cube(
groove_width, stone_size_long +
stone_size_short - 2 * EPSILON,
groove_depth))))
elif hole_modes[i] == "pin":
root(
self.screw_metric.screw_from_to(
0, y_positions[i], 0, 0, y_positions[i],
-groove_width)),
root(
translate(0, y_positions[i] - stone_size_long,
0)(stone(2 * stone_size_long)))
# make inner spacers
for i in range(len(hole_modes) - 1):
padding_left = stone_size_short if hole_modes[
i] == "left" else stone_size_long
padding_right = stone_size_short if hole_modes[
i + 1] == "right" else stone_size_long
length = half_width * 2 - padding_left - padding_right
begin = y_positions[i] + padding_left
root(translate(0, begin, 0)(stone(length)))
padding = (stone_size_short
if hole_modes[0] == "right" else stone_size_long)
root(
translate(0, -plate_length / 2, 0)(
stone(plate_length / 2 + y_positions[0] - padding)))
padding = (stone_size_short
if hole_modes[-1] == "left" else stone_size_long)
root(
translate(0, y_positions[-1] + padding, 0)(
stone(plate_length / 2 - y_positions[-1] - padding)))
return root
con = group()(make_connection(), mirror(0, 1, 0)(make_connection()))
align = group()(make_alignment(), mirror(0, 1, 0)(make_alignment()))
inner = make_inner()
if shape == "corner":
alignment = group(align, inner)
connection = translate(half_width, 0,
half_width)(rotate(0, -90, 0)(con))
elif shape == "top":
if self.num_screws < 2:
raise Exception(
"plate alignment with shape=top only possible for profiles with num_screws >= 2"
)
alignment = translate(-self.width / self.num_screws / 2, 0,
0)(align)
if not printable: alignment(inner)
connection = translate(+self.width / self.num_screws / 2, 0,
0)(con)
elif shape == "far_corner":
raise NotImplementedError("far_corner not implemented yet")
else:
raise Exception("unknown shape: {}".format(shape))
root = group()(alignment, connection)
if printable:
root(translate(self.width, 0, 0)(rotate(0, 180, 0)(inner)))
return root