def _fuse_nut_ramps_to_bracket(bracket: Part.Solid, thickness: float,
set_screw_cutout_length: float,
set_screw_cutout_width: float,
ramp_height: float) -> Part.Solid:
"""Fuse nut ramps to bracket so nut doesn't spin when tightening screw.
::
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| \
|__\
:param bracket: Bracket
:param thickness: Thickness
:param set_screw_cutout_length: Length of set screw cutout
:param set_screw_cutout_width: Width of set screw cutout
:param ramp_height: Height of ramp.
"""
ramp_length = set_screw_cutout_length / 2.0
ramp_angle = (180 - 120) / 2 # Hexagonal nuts have 120 degree angles
# opposite = tan(theta) * adjacent (toa in soh-cah-toa rule)
height = tan(radians(ramp_angle)) * ramp_length
# Right Triangle
bottom_left = Vector(0, 0, 0)
top_left = Vector(0, 0, height)
bottom_right = Vector(ramp_length, 0, 0)
vectors = [bottom_left, top_left, bottom_right]
face = make_face_from_vectors(vectors)
rotation = 45
left_ramp = face.extrude(Vector(0, set_screw_cutout_width, 0))
right_ramp = left_ramp.copy()
left_ramp.rotate(Vector(0, 0, 0), Vector(0, 0, -1), rotation)
right_ramp.rotate(Vector(0, 0, 0), Vector(0, 0, -1), 180 + rotation)
cutout_length_offset = set_screw_cutout_length * cos(radians(rotation))
left_ramp.translate(
Vector(thickness * 2, (thickness * 2) + cutout_length_offset,
ramp_height))
cutout_width_offset = set_screw_cutout_width * cos(radians(rotation))
right_ramp.translate(
Vector((thickness * 2) + cutout_length_offset + cutout_width_offset,
(thickness * 2) + cutout_width_offset, ramp_height))
bracket = bracket.fuse(left_ramp)
return bracket.fuse(right_ramp)
