def scaledipad(x, y, height):
"""Returns an instance of the iPad scaled to have x, y mm extra size, at height"""
xscale = (IPAD_W + x) / IPAD_W
yscale = (IPAD_H + y) / IPAD_H
print(xscale, yscale)
o = linear_extrude(height)(polygon(IPAD_POINTS))
return scale([xscale, yscale, 1])(o)
def test_fillet_2d_add(self):
pts = [[0, 5], [5, 5], [5, 0], [10, 0], [10, 10], [0, 10], ]
p = polygon(pts)
three_points = [euclidify(pts[0:3], Point2)]
actual = fillet_2d(three_points, orig_poly=p, fillet_rad=2, remove_material=False)
expected = 'union(){polygon(points=[[0,5],[5,5],[5,0],[10,0],[10,10],[0,10]]);translate(v=[3.0000000000,3.0000000000]){difference(){intersection(){rotate(a=359.9000000000){translate(v=[-998,0,0]){square(center=false,size=[1000,1000]);}}rotate(a=450.1000000000){translate(v=[-998,-1000,0]){square(center=false,size=[1000,1000]);}}}circle(r=2);}}}'
self.assertEqualOpenScadObject(expected, actual)
def test_fillet_2d_remove(self):
pts = list((project_to_2D(p) for p in tri))
poly = polygon(euc_to_arr(pts))
newp = fillet_2d([pts], orig_poly=poly, fillet_rad=2, remove_material=True)
expected = 'difference(){polygon(paths=[[0,1,2]],points=[[0,0],[10,0],[0,10]]);translate(v=[5.1715728753,2.0000000000]){difference(){intersection(){rotate(a=-90.1000000000){translate(v=[-998,0,0]){square(center=false,size=[1000,1000]);}}rotate(a=45.1000000000){translate(v=[-998,-1000,0]){square(center=false,size=[1000,1000]);}}}circle(r=2);}}}'
actual = scad_render(newp)
self.assertEqualNoWhitespace(expected, actual)
def test_imported_scad_arguments(self):
include_file = self.expand_scad_path("examples/scad_to_include.scad")
mod = import_scad(include_file)
points = mod.scad_points();
poly = polygon(points);
actual = scad_render(poly);
abs_path = points._get_include_path(include_file)
expected = f'use <{abs_path}>\n\n\npolygon(points = scad_points());'
self.assertEqual(expected, actual)
def test_fillet_2d_remove(self):
pts = tri
poly = polygon(euc_to_arr(tri))
newp = fillet_2d(tri,
orig_poly=poly,
fillet_rad=2,
remove_material=True)
expected = '\n\ndifference() {\n\tpolygon(paths = [[0, 1, 2]], points = [[0, 0, 0], [10, 0, 0], [0, 10, 0]]);\n\ttranslate(v = [5.1715728753, 2.0000000000, 0.0000000000]) {\n\t\tdifference() {\n\t\t\tintersection() {\n\t\t\t\trotate(a = 268.0000000000) {\n\t\t\t\t\ttranslate(v = [-998, 0, 0]) {\n\t\t\t\t\t\tsquare(center = false, size = [1000, 1000]);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\trotate(a = 407.0000000000) {\n\t\t\t\t\ttranslate(v = [-998, -1000, 0]) {\n\t\t\t\t\t\tsquare(center = false, size = [1000, 1000]);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\tcircle(r = 2);\n\t\t}\n\t}\n}'
actual = scad_render(newp)
if expected != actual:
print(''.join(difflib.unified_diff(expected, actual)))
self.assertEqual(expected, actual)
def main(out_dir):
# Parameters
height_ratio = 0.25
left_loc = ONE_THIRD
midpoint_loc = 0.5
right_loc = 2 * ONE_THIRD
gens = 5
# Results
all_polys = union()
# setup
ax, ay = 0, 0
bx, by = 100, 0
cx, cy = 50, 86.6
base_seg1 = LineSegment2(Point2(ax, ay), Point2(cx, cy))
base_seg2 = LineSegment2(Point2(cx, cy), Point2(bx, by))
base_seg3 = LineSegment2(Point2(bx, by), Point2(ax, ay))
generations = [[base_seg1, base_seg2, base_seg3]]
# Recursively generate snowflake segments
for g in range(1, gens):
generations.append([])
for seg in generations[g - 1]:
generations[g].extend(
kochify(seg, height_ratio, left_loc, midpoint_loc, right_loc))
# # Put all generations into SCAD
orig_length = abs(generations[0][0])
for g, a_gen in enumerate(generations):
points = [s.p1 for s in a_gen]
# Just use arrays for points so SCAD understands
points = [[p.x, p.y] for p in points]
# Move each generation up in y so it doesn't overlap the others
h = orig_length * 1.5 * g
# Do the SCAD
edges = [list(range(len(points)))]
all_polys.add(forward(h)(polygon(points=points, paths=edges)))
file_out = scad_render_to_file(all_polys,
out_dir=out_dir,
include_orig_code=True)
print(f"{__file__}: SCAD file written to: {file_out}")
def test_fillet_2d_add(self):
pts = [
[0, 5],
[5, 5],
[5, 0],
[10, 0],
[10, 10],
[0, 10],
]
p = polygon(pts)
newp = fillet_2d(euclidify(pts[0:3], Point3),
orig_poly=p,
fillet_rad=2,
remove_material=False)
expected = '\n\nunion() {\n\tpolygon(paths = [[0, 1, 2, 3, 4, 5]], points = [[0, 5], [5, 5], [5, 0], [10, 0], [10, 10], [0, 10]]);\n\ttranslate(v = [3.0000000000, 3.0000000000, 0.0000000000]) {\n\t\tdifference() {\n\t\t\tintersection() {\n\t\t\t\trotate(a = 358.0000000000) {\n\t\t\t\t\ttranslate(v = [-998, 0, 0]) {\n\t\t\t\t\t\tsquare(center = false, size = [1000, 1000]);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\trotate(a = 452.0000000000) {\n\t\t\t\t\ttranslate(v = [-998, -1000, 0]) {\n\t\t\t\t\t\tsquare(center = false, size = [1000, 1000]);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\tcircle(r = 2);\n\t\t}\n\t}\n}'
actual = scad_render(newp)
self.assertEqual(expected, actual)
def threadedinsert(flip_x, thick, holesize, length):
"""insert
heatpress insert
Heatpress can be inserted from the top. The screw should also be inserted
from the top. The screw is centered at the origin.
The wall thickness are specified by;
http://uk.farnell.com/tr-fastenings-brass-inserts-for-plastics
The length and hole size should be obtained from the sheet.
this threaded is supported by a triangle and can be mirrored in the
x-direction
:param flip_x: flip insert in, origin shifted back
:param length: length of the insert
:param holesize: diameter of the hole
"""
# NOTE: other options
# -sliding ; this results in a cable collision
# -press insert; more recommended for photopolymer parts, less permanent
# -bolt printed inside; requires print pause, not useful in production
# -magnet; magnets are dangerous for electronics
x_extent = holesize + 2 * thick
y_extent = holesize / 2 + thick + SCREW_FIXOFFST
base = cube([x_extent, y_extent, length])
triangle = polygon([[0, 0], [y_extent, y_extent], [0, y_extent]])
prism = linear_extrude(x_extent)(triangle)
support = translate([x_extent, y_extent, 0])(rotate([90, 0, -90])(prism))
base = support + up(y_extent)(base)
base -= translate([holesize / 2 + thick, holesize / 2 + thick,
0])(cylinder(h=length + y_extent,
r=holesize / 2,
segments=30))
# changed orientation to simplify placement
base = down(y_extent + length)(base)
# center origin at Z-axis
base = translate(
[-x_extent / 2, -SCREW_FIXOFFST + thick + holesize / 2, 0])(base)
if flip_x:
base = rotate([0, 0, 180])(base)
return base
def ipadcorner(height=7.2):
"""Returns a 15x15mm corner of the ipad at mm height"""
o = linear_extrude(height)(polygon(IPAD_CORNER))
return o
def ipadminiholderfront():
# Back (wall mount)
# o = sizedipad(IPAD_W + WALL * 2 + SLIP * 2, IPAD_H + WALL * 2 + SLIP * 2, BACK)
o = union()
# Front supports
o += sizedipad(
TOTAL_W,
IPAD_H + WALL * 2 + SLIP * 2 + INNER_WALL + WALL_PADDING,
IPAD_D + WALL + SLIP + BACK,
)
sides = WALL + INNER_WALL + WALL_PADDING + SLIP
# Cutouts for buttons, round curves around the button
o -= translate([
IPAD_W + WALL + SLIP * 2 + INNER_WALL + WALL_PADDING - BUTTON_D / 2 -
BUTTON_TO_EDGE,
(IPAD_H + WALL * 2 + SLIP * 2) / 2 + INNER_WALL + WALL_PADDING,
BACK,
])(cylinder(d=BUTTON_D, h=50))
o -= translate([
sides + SCREEN_SIDE_EDGE - SCREEN_BORDER + IPAD_W -
(SCREEN_SIDE_EDGE - SCREEN_BORDER) * 2 + BUTTON_D / 2,
(IPAD_H + WALL * 2 + SLIP * 2) / 2 + INNER_WALL + WALL_PADDING +
BUTTON_D,
BACK,
])(difference()(
translate([-BUTTON_D, -BUTTON_D, 0])(cube([BUTTON_D, BUTTON_D, 50])),
cylinder(d=BUTTON_D, h=50),
))
o -= translate([
sides + SCREEN_SIDE_EDGE - SCREEN_BORDER + IPAD_W -
(SCREEN_SIDE_EDGE - SCREEN_BORDER) * 2 + BUTTON_D / 2,
(IPAD_H + WALL * 2 + SLIP * 2) / 2 + INNER_WALL + WALL_PADDING -
BUTTON_D,
BACK,
])(difference()(
translate([-BUTTON_D, 0, 0])(cube([BUTTON_D, BUTTON_D, 50])),
cylinder(d=BUTTON_D, h=50),
))
# Camera
o -= translate([
sides + BUTTON_TO_EDGE + BUTTON_D / 2,
(IPAD_H + WALL * 2 + SLIP * 2) / 2 + INNER_WALL + WALL_PADDING,
BACK,
])(cylinder(d=BUTTON_D, h=50))
o -= translate([
sides + SCREEN_SIDE_EDGE - SCREEN_BORDER - BUTTON_D / 2,
(IPAD_H + WALL * 2 + SLIP * 2) / 2 + INNER_WALL + WALL_PADDING +
BUTTON_D,
BACK,
])(difference()(
translate([0, -BUTTON_D, 0])(cube([BUTTON_D, BUTTON_D, 50])),
cylinder(d=BUTTON_D, h=50),
))
o -= translate([
sides + SCREEN_SIDE_EDGE - SCREEN_BORDER - BUTTON_D / 2,
(IPAD_H + WALL * 2 + SLIP * 2) / 2 + INNER_WALL + WALL_PADDING -
BUTTON_D,
BACK,
])(difference()(
translate([0, 0, 0])(cube([BUTTON_D, BUTTON_D, 50])),
cylinder(d=BUTTON_D, h=50),
))
# # Camera
# o -= translate([WALL + SIDE_EDGE / 2, (IPAD_H + WALL * 2 + SLIP * 2) / 2, BACK])(
# cylinder(d=BUTTON_D, h=50)
# )
# Cutout for actual iPad, made very tall to allow sliding in/out
if ALLOW_IPAD_SLIDE_IN:
height = IPAD_H * 2 + INNER_WALL + WALL_PADDING
else:
height = IPAD_H + INNER_WALL * 2 + WALL_PADDING
o -= translate([WALL, WALL, -1])(sizedipad(
IPAD_W + SLIP * 2 + INNER_WALL * 2 + WALL_PADDING * 2,
height,
IPAD_D + SLIP + BACK + 1,
))
# Cutout for remaining material around where the extra overhang is for the power
# connector
o -= translate([WALL, WALL, -1])(sizedipad(
TOTAL_W - WALL * 2,
IPAD_H + INNER_WALL * 2 + WALL_PADDING,
IPAD_D + SLIP + BACK + 1,
))
# Cutout for screen
o -= translate([
sides + SCREEN_SIDE_EDGE - SCREEN_BORDER,
sides + SCREEN_BOTTOM_EDGE - SCREEN_BORDER,
BACK,
])(cube([
IPAD_W - (SCREEN_SIDE_EDGE - SCREEN_BORDER) * 2,
IPAD_H - (SCREEN_BOTTOM_EDGE - SCREEN_BORDER) * 2,
IPAD_D * 3,
]))
# Side "hooks"
o += translate([WALL, (IPAD_H - 15 * 2) + 15, 0])(rotate([90, 0, 0])(
linear_extrude(IPAD_H - 15 * 2)(polygon([[0, 0], [1, 0], [0, 1]]))))
o += translate([TOTAL_W - WALL * 2 + WALL, 15, 0])(rotate([-90, 180, 0])(
linear_extrude(IPAD_H - 15 * 2)(polygon([[0, 0], [1, 0], [0, 1]]))))
o += translate([
(TOTAL_W - 15 * 2) + 15, WALL, 0
])(rotate([0, -90, 0])(linear_extrude(TOTAL_W - 15 * 2)(polygon([[0, 0],
[1, 0],
[0,
1]]))))
# o += translate([15, WALL, 0])(cube([IPAD_W - 15 * 2, WALL, WALL]))
# Power connector
if POWER_CONNECTOR_ACCESSIBLE:
o -= translate([
IPAD_W / 2,
(IPAD_H + WALL * 2 + SLIP * 2) / 2 + INNER_WALL + WALL_PADDING -
POWER_UNDERHANG - BUTTON_D / 2,
-1,
])(cube([IPAD_W, BUTTON_D + POWER_UNDERHANG,
IPAD_D + SLIP + BACK + 1]))
# Lock Button
if ALLOW_IPAD_SLIDE_IN:
extra = 100
else:
extra = 0
o -= translate([
-1,
(IPAD_H + WALL * 2 + SLIP * 2) - LOCK_BUTTON_TO_EDGE -
LOCK_BUTTON_LEN + INNER_WALL + WALL_PADDING,
0,
])(cube([50, LOCK_BUTTON_LEN + extra, IPAD_D + SLIP + BACK]))
# Screws
o -= screws()
if SHOW_IPAD:
o += translate([
WALL + INNER_WALL + SLIP + WALL_PADDING,
WALL + INNER_WALL + SLIP + WALL_PADDING,
BACK,
])(IPAD_STL).set_modifier("")
return o
def main(params: Params):
# face
face_profile = roundrect(
[LGX_FACE_WIDTH, LGX_FACE_HEIGHT + params.lgx_face_extra_height],
params.face_radius,
)
cutout_profile = roundrect([params.poe_face_width, params.poe_face_height],
params.poe_face_radius)
cutout_x = LGX_FACE_WIDTH / 2 - params.poe_face_width / 2
cutout_y = params.poe_face_lift + params.platform_thickness
cutout = translate([cutout_x, cutout_y, 0])(cutout_profile)
cutout_extrude = debug(
down(params.lgx_rack_thickness)(
linear_extrude(params.face_thickness +
params.lgx_rack_thickness)(cutout)))
post = circle(d=params.face_post_d)
posts = post + right(params.face_post_separation)(post)
posts = translate([
LGX_FACE_WIDTH / 2 - params.face_post_separation / 2,
LGX_FACE_HEIGHT / 2, 0
])(posts)
face = difference()(face_profile, posts)
face_extrusion = linear_extrude(height=params.face_thickness)(face)
tray_depth = (params.platform_thickness + params.poe_depth +
params.lgx_rack_thickness)
# tray
tray = linear_extrude(height=params.platform_thickness)(
square(size=[LGX_PLATFORM_WIDTH, tray_depth]))
poe_holder_outer_params = [
params.poe_width + params.platform_thickness * 2,
tray_depth,
]
poe_holder_profile = difference()(
square(poe_holder_outer_params),
right(params.platform_thickness)(forward(params.lgx_rack_thickness)(
square([
params.poe_width,
params.poe_depth,
]))),
)
poe_holder_extrude = linear_extrude(
height=params.poe_retainer_height)(poe_holder_profile)
poe_holder = translate([
LGX_PLATFORM_WIDTH / 2 - poe_holder_outer_params[0] / 2,
0,
params.platform_thickness,
])(poe_holder_extrude)
tray = union()(poe_holder, tray)
tray = rotate([270, 0, 0])(translate(
[LGX_FACE_WIDTH / 2 - LGX_PLATFORM_WIDTH / 2, 0, 0])(tray))
# support
support_start_inset = (params.platform_thickness + LGX_FACE_WIDTH / 2 -
LGX_PLATFORM_WIDTH / 2)
point_extent = LGX_FACE_HEIGHT - params.platform_thickness
support_profile = polygon([[0, 0], [0, point_extent], [point_extent, 0]])
support = linear_extrude(height=params.platform_thickness)(support_profile)
support = rotate([270, 0, 90])(support)
support_left = translate([support_start_inset, 0, 0])(support)
support_right = translate([
support_start_inset + LGX_PLATFORM_WIDTH - params.platform_thickness,
0, 0
])(support)
return difference()(union()(face_extrusion, tray, support_left,
support_right), cutout_extrude)