def cylinder(diameter: float, height: float, segments: int = 48):
n = node(
linear_extrude(height=height)(circle(diameter / 2.0,
segments=segments)))
n.set_origin(x=-diameter / 2, y=-diameter / 2)
n.set_center(z=height / 2)
return n
def test_scad_render_to_file(self):
a = circle(10)
# No header, no included original code
with TemporaryFileBuffer() as tmp:
scad_render_to_file(a, filepath=tmp.name, include_orig_code=False)
actual = tmp.contents
expected = '\n\ncircle(r = 10);'
# scad_render_to_file also adds a date & version stamp before scad code;
# That won't match here, so just make sure the correct code is at the end
self.assertTrue(actual.endswith(expected))
# Header
with TemporaryFileBuffer() as tmp:
scad_render_to_file(a,
filepath=tmp.name,
include_orig_code=False,
file_header='$fn = 24;')
actual = tmp.contents
expected = '$fn = 24;\n\n\ncircle(r = 10);'
self.assertTrue(actual.endswith(expected))
# Test out_dir specification, both using an existing dir & creating one
# Using existing directory
with TemporaryFileBuffer() as tmp:
out_dir = Path(tmp.name).parent
expected = (out_dir / 'test_solidpython.scad').as_posix()
actual = scad_render_to_file(a, out_dir=out_dir)
self.assertEqual(expected, actual)
# Creating a directory on demand
with TemporaryFileBuffer() as tmp:
out_dir = Path(tmp.name).parent / 'SCAD'
expected = (out_dir / 'test_solidpython.scad').as_posix()
actual = scad_render_to_file(a, out_dir=out_dir)
self.assertEqual(expected, actual)
def solid_nut(screw_type="m3"):
dims = screw_dimensions[screw_type.lower()]
outer_rad = dims["nut_outer_diam"]
ret = linear_extrude(height=dims["nut_thickness"])(circle(outer_rad, segments=6))
return ret
def roller():
radius = 31.75/2
ring = so.rotate_extrude(360)(so.translate((radius + 3.175/2,0))(so.circle(d=3.175)))
return so.mirror((0,0,1))(so.cylinder(r=radius+3.175/2-0.8, h=13) - big_hex_nut - so.translate((0,0,6.5))(ring) - so.cylinder(r=15.2/2 + 0.1, h=13))
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)