def make_constraints(self):
inner = self.components['inner_ring']
outer = self.components['outer_ring']
return [
constraint.Fixed(inner.mate_origin),
constraint.Coincident(outer.mate_origin, inner.mate_origin),
]
def make_constraints(self):
base = self.components['base']
top = self.components['top']
fastener = self.components['fastener']
return [
constraint.Fixed(base.mate_bottom),
constraint.Coincident(top.mate_bottom, base.mate_top),
constraint.Coincident(fastener.mate_origin,
top.mate_top + CoordSystem((1, 2, 0))),
]
def make_constraints(self):
constraints = []
for i in range(self.roller_count):
obj = self.components[self._roller_name(i)]
angle = i * (360. / self.roller_count)
constraints.append(
constraint.Fixed(
obj.mate_origin,
CoordSystem().rotated((0, 0, angle)) +
CoordSystem(origin=(self.rolling_radius, 0, 0), ).rotated(
(0, -self.roller_angle, 0))))
return constraints
def make_constraints(self):
bottom = self.components['bottom']
top = self.components['top']
spring = self.components['spring']
return [
constraint.Fixed(bottom.mate_side),
constraint.Coincident(
top.mate_spring_center,
bottom.mate_spring_center + CoordSystem(normal=(0, 0, -1))),
constraint.Coincident(spring.mate_origin,
bottom.mate_spring_center),
]
def make_constraints(self):
outer = self.components['outer_ring']
inner = self.components['inner_ring']
ring = self.components['rolling_elements']
constraints = [
constraint.Fixed(outer.mate_origin),
constraint.Coincident(
inner.get_mate_center(angle=0),
outer.get_mate_center(angle=self.angle)
),
constraint.Coincident(ring.mate_origin, outer.mate_origin),
]
# rolling elements
# FIXME: use a more sensible constraint when available (see issue #30)
return constraints
def make_constraints(self):
constraints = []
ball_angle = -radians(self.angle * 2)
rail_angle_delta = radians(self.angle / 2)
for i in range(self.ball_count):
# crude, innacruate calculation. justification: ball position is just illustrative
ball = self.components[self.ball_name(i)]
arc_angle = i * ((pi * 2) / self.ball_count)
rail_angle = arc_angle + rail_angle_delta
constraints.append(constraint.Fixed(
ball.mate_origin,
CoordSystem(
origin=(
self.rolling_radius * cos(rail_angle),
self.rolling_radius * sin(rail_angle),
0,
),
xDir=(cos(ball_angle), sin(ball_angle), 0),
normal=(0, 0, 1),
)
))
return constraints