Additional mounting points for machinery on first 3 rings
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af82a86652
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GPG Key ID:
D5F96287843E8DFB
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@ -84,7 +84,10 @@ class Onbashira(Model):
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angle_joint_bolt_position: list[float] = field(default_factory=lambda: [
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(40, 10),
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])
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angle_joint_flange_radius: float = 23.0
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angle_joint_flange_extension: float = 23.0
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angle_joint_extra_hole_offset: float = 20.0
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# Mating structure on the angle joint
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angle_joint_conn_thickness: float = 4.0
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angle_joint_conn_depth: float = 15.0
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angle_joint_conn_width: float = 15.0
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@ -658,8 +661,154 @@ class Onbashira(Model):
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)
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return a
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@target(name="angle-joint-chamber-back")
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def angle_joint_chamber_back(self) -> Cq.Workplane:
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slot = (
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Cq.Workplane()
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.sketch()
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.regularPolygon(
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self.side_width,
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self.n_side
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)
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.finalize()
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.extrude(self.angle_joint_depth)
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)
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thickness = self.chamber_bulk_radius - self.bulk_radius
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h = (self.bulk_radius + self.angle_joint_extra_width) * 2
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# Intersector for 1/n of the ring
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intersector = (
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Cq.Workplane()
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.sketch()
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.polygon([
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(0, 0),
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(h, 0),
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(h, h * math.tan(2 * math.pi / self.n_side))
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])
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.finalize()
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.extrude(self.angle_joint_depth*4)
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.translate((0, 0, -self.angle_joint_depth*2))
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)
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# The mating structure
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z1 = self.bulk_radius + (thickness - self.angle_joint_conn_thickness) / 2
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z2 = z1 + self.angle_joint_conn_thickness
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mating1n = (
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Cq.Workplane()
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.sketch()
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.polygon([
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(z1, 0),
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(z1, self.angle_joint_conn_width),
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(z2, self.angle_joint_conn_width),
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(z2, 0),
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])
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.finalize()
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.extrude(self.angle_joint_conn_depth)
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)
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mating1p = mating1n.rotate((0,0,0), (1,0,0), 180)
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angle = 360 / self.n_side
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chamber_intersector = (
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Cq.Workplane()
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.sketch()
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.regularPolygon(self.chamber_side_width, self.n_side)
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.regularPolygon(self.chamber_side_width - self.delta_side_width, self.n_side, mode="s")
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.finalize()
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.extrude(self.angle_joint_depth)
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.translate((0,0,self.angle_joint_gap/2))
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)
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result = (
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Cq.Workplane()
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.sketch()
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.regularPolygon(
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self.chamber_side_width,
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self.n_side
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)
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.regularPolygon(
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self.side_width_inner,
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self.n_side, mode="s"
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)
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.finalize()
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.extrude(self.angle_joint_depth)
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.translate((0, 0, -self.angle_joint_depth/2))
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.cut(slot.translate((0, 0, self.angle_joint_gap/2)))
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.intersect(intersector)
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.cut(chamber_intersector)
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.cut(mating1n)
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.union(mating1p)
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.union(mating1n.rotate((0,0,0),(0,0,1),angle))
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.cut(mating1p.rotate((0,0,0),(0,0,1),angle))
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)
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h = self.chamber_bulk_radius
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hole_negative = Cq.Solid.makeCylinder(
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radius=self.angle_joint_bolt_diam/2,
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height=h,
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pnt=(0,0,0),
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dir=(1,0,0),
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) + Cq.Solid.makeCylinder(
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radius=self.angle_joint_bolt_head_diam/2,
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height=self.angle_joint_bolt_head_depth,
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pnt=(h,0,0),
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dir=(-1,0,0),
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)
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dy = self.angle_joint_gap / 2
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locrot = Cq.Location(0, 0, 0, 0, 0, 360/self.n_side)
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for (x, y) in self.angle_joint_bolt_position:
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p1 = Cq.Location((0, x, dy+y))
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p1r = locrot * Cq.Location((0, -x, dy+y))
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result = result \
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- hole_negative.moved(p1) \
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- hole_negative.moved(p1r)
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# Mark the absolute locations of the mount points
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dr = self.chamber_bulk_radius - self.side_thickness
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locrot = Cq.Location(0, 0, 0, 0, 0, 360/self.n_side)
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dr = self.chamber_bulk_radius - self.side_thickness
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dy = self.angle_joint_gap / 2
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for i, (x, y) in enumerate(self.angle_joint_bolt_position):
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py = dy + y
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#result.tagAbsolute(f"holeLPO{i}", (dr, x, py), direction="+X")
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result.tagAbsolute(f"holeLPO{i}", (dr, x, py), direction="+X")
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#result.tagAbsolute(f"holeLSO{i}", locrot * Cq.Location(dr, -x, py), direction="+X")
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result.tagAbsolute(f"holeLSO{i}", locrot * Cq.Location(dr, -x, py), direction="+X")
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th = math.pi / self.n_side
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r = self.bulk_radius
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flange_z = self.angle_joint_depth / 2 - self.side_thickness
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flange = (
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Cq.Workplane()
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.sketch()
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.push([
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(r, r * math.tan(th))
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])
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.circle(self.angle_joint_flange_extension)
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.reset()
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.regularPolygon(self.side_width_inner, self.n_side, mode="i")
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.finalize()
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.extrude(self.angle_joint_gap)
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.translate((0, 0, -flange_z))
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)
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ri = self.stator_bind_radius
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h = self.angle_joint_gap
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# Drill holes for connectors
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cyl = Cq.Solid.makeCylinder(
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radius=self.rotor_bind_bolt_diam/2,
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height=h,
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pnt=(0, 0, -flange_z),
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)
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result = (
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result
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+ flange
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- cyl.moved(ri * math.cos(th), ri * math.sin(th), 0)
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)
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result.tagAbsolute("holeStatorO", (ri * math.cos(th), ri * math.sin(th), -flange_z), direction="-Z")
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result.tagAbsolute("holeStatorI", (ri * math.cos(th), ri * math.sin(th), -flange_z+h), direction="+Z")
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return result
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@target(name="angle-joint-chamber-front")
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def angle_joint_chamber_front(self) -> Cq.Workplane:
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"""
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Angle joint for connecting the chamber to the chassis of the barrel
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"""
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# This slot cuts the interior of the joint
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slot = (
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Cq.Workplane()
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@ -782,173 +931,41 @@ class Onbashira(Model):
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#result.tagAbsolute(f"holeLSO{i}", locrot * Cq.Location(dr, -x, py), direction="+X")
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result.tagAbsolute(f"holeRSO{i}", locrot * Cq.Location(dr, -x, -py), direction="+X")
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# Generate the flange geometry
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th = math.pi / self.n_side
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r = self.bulk_radius
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flange = (
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Cq.Workplane()
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.sketch()
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.push([
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(r, r * math.tan(th))
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])
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.circle(self.angle_joint_flange_radius)
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.reset()
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.regularPolygon(self.side_width_inner, self.n_side, mode="i")
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.regularPolygon(self.side_width_inner, self.n_side)
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.regularPolygon(self.side_width_inner - self.angle_joint_flange_extension, self.n_side, mode="s")
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.finalize()
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.extrude(self.angle_joint_gap)
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.translate((0, 0, -self.angle_joint_gap/2))
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)
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flange = flange * intersector
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ri = self.stator_bind_radius
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h = self.angle_joint_gap
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# Drill holes for connectors
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cyl = Cq.Solid.makeCylinder(
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radius=self.rotor_bind_bolt_diam/2,
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height=h,
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pnt=(ri * math.cos(th), ri * math.sin(th), -h/2),
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pnt=(0, 0, -h/2),
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)
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side_pos = Cq.Location(ri * math.cos(th), self.angle_joint_extra_hole_offset, 0)
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side_pos2 = Cq.Location.rot2d(360/self.n_side) * side_pos.flip_y()
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result = (
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result
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+ flange
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- cyl.moved(ri * math.cos(th), ri * math.sin(th), 0)
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- cyl.moved(side_pos.toTuple())
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- cyl.moved(side_pos2.toTuple())
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)
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result = result + flange - cyl
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result.tagAbsolute("holeStatorL", (ri * math.cos(th), ri * math.sin(th), h/2), direction="+Z")
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result.tagAbsolute("holeStatorR", (ri * math.cos(th), ri * math.sin(th), -h/2), direction="-Z")
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return result
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@target(name="angle-joint-chamber-back")
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def angle_joint_chamber_back(self) -> Cq.Workplane:
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slot = (
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Cq.Workplane()
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.sketch()
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.regularPolygon(
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self.side_width,
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self.n_side
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)
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.finalize()
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.extrude(self.angle_joint_depth)
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)
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thickness = self.chamber_bulk_radius - self.bulk_radius
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h = (self.bulk_radius + self.angle_joint_extra_width) * 2
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# Intersector for 1/n of the ring
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intersector = (
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Cq.Workplane()
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.sketch()
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.polygon([
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(0, 0),
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(h, 0),
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(h, h * math.tan(2 * math.pi / self.n_side))
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])
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.finalize()
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.extrude(self.angle_joint_depth*4)
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.translate((0, 0, -self.angle_joint_depth*2))
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)
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# The mating structure
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z1 = self.bulk_radius + (thickness - self.angle_joint_conn_thickness) / 2
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z2 = z1 + self.angle_joint_conn_thickness
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mating1n = (
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Cq.Workplane()
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.sketch()
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.polygon([
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(z1, 0),
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(z1, self.angle_joint_conn_width),
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(z2, self.angle_joint_conn_width),
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(z2, 0),
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])
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.finalize()
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.extrude(self.angle_joint_conn_depth)
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)
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mating1p = mating1n.rotate((0,0,0), (1,0,0), 180)
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angle = 360 / self.n_side
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chamber_intersector = (
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Cq.Workplane()
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.sketch()
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.regularPolygon(self.chamber_side_width, self.n_side)
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.regularPolygon(self.chamber_side_width - self.delta_side_width, self.n_side, mode="s")
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.finalize()
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.extrude(self.angle_joint_depth)
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.translate((0,0,self.angle_joint_gap/2))
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)
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result = (
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Cq.Workplane()
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.sketch()
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.regularPolygon(
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self.chamber_side_width,
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self.n_side
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)
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.regularPolygon(
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self.side_width_inner,
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self.n_side, mode="s"
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)
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.finalize()
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.extrude(self.angle_joint_depth)
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.translate((0, 0, -self.angle_joint_depth/2))
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.cut(slot.translate((0, 0, self.angle_joint_gap/2)))
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.intersect(intersector)
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.cut(chamber_intersector)
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.cut(mating1n)
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.union(mating1p)
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.union(mating1n.rotate((0,0,0),(0,0,1),angle))
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.cut(mating1p.rotate((0,0,0),(0,0,1),angle))
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)
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h = self.chamber_bulk_radius
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hole_negative = Cq.Solid.makeCylinder(
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radius=self.angle_joint_bolt_diam/2,
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height=h,
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pnt=(0,0,0),
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dir=(1,0,0),
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) + Cq.Solid.makeCylinder(
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radius=self.angle_joint_bolt_head_diam/2,
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height=self.angle_joint_bolt_head_depth,
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pnt=(h,0,0),
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dir=(-1,0,0),
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)
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dy = self.angle_joint_gap / 2
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locrot = Cq.Location(0, 0, 0, 0, 0, 360/self.n_side)
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for (x, y) in self.angle_joint_bolt_position:
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p1 = Cq.Location((0, x, dy+y))
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p1r = locrot * Cq.Location((0, -x, dy+y))
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result = result \
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- hole_negative.moved(p1) \
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- hole_negative.moved(p1r)
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# Mark the absolute locations of the mount points
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dr = self.chamber_bulk_radius - self.side_thickness
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dr0 = self.bulk_radius
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locrot = Cq.Location(0, 0, 0, 0, 0, 360/self.n_side)
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dr = self.chamber_bulk_radius - self.side_thickness
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dy = self.angle_joint_gap / 2
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for i, (x, y) in enumerate(self.angle_joint_bolt_position):
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py = dy + y
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#result.tagAbsolute(f"holeLPO{i}", (dr, x, py), direction="+X")
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result.tagAbsolute(f"holeLPO{i}", (dr, x, py), direction="+X")
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#result.tagAbsolute(f"holeLSO{i}", locrot * Cq.Location(dr, -x, py), direction="+X")
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result.tagAbsolute(f"holeLSO{i}", locrot * Cq.Location(dr, -x, py), direction="+X")
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th = math.pi / self.n_side
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r = self.bulk_radius
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flange_z = self.angle_joint_depth / 2 - self.side_thickness
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flange = (
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Cq.Workplane()
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.sketch()
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.push([
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(r, r * math.tan(th))
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])
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.circle(self.angle_joint_flange_radius)
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.reset()
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.regularPolygon(self.side_width_inner, self.n_side, mode="i")
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.finalize()
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.extrude(self.angle_joint_gap)
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.translate((0, 0, -flange_z))
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)
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ri = self.stator_bind_radius
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h = self.angle_joint_gap
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cyl = Cq.Solid.makeCylinder(
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radius=self.rotor_bind_bolt_diam/2,
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height=h,
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pnt=(ri * math.cos(th), ri * math.sin(th), -flange_z),
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)
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result = result + flange - cyl
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result.tagAbsolute("holeStatorO", (ri * math.cos(th), ri * math.sin(th), -flange_z), direction="-Z")
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result.tagAbsolute("holeStatorI", (ri * math.cos(th), ri * math.sin(th), -flange_z+h), direction="+Z")
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return result
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@target(name="angle-joint")
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def angle_joint(self, add_flange=True) -> Cq.Workplane:
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def angle_joint(self) -> Cq.Workplane:
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"""
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Angular joint between two side panels (excluding chamber). This sits at the intersection of
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4 side panels to provide compressive, shear, and tensile strength.
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@ -1064,32 +1081,36 @@ class Onbashira(Model):
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result.tagAbsolute(f"holeLSM{i}", locrot * Cq.Location(dr0, -x, py), direction="-X")
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result.tagAbsolute(f"holeRSM{i}", locrot * Cq.Location(dr0, -x, -py), direction="-X")
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if add_flange:
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th = math.pi / self.n_side
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r = self.bulk_radius
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flange = (
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Cq.Workplane()
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.sketch()
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.push([
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(r, r * math.tan(th))
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])
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.circle(self.angle_joint_flange_radius)
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.reset()
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.regularPolygon(self.side_width_inner, self.n_side, mode="i")
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.finalize()
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.extrude(self.angle_joint_gap)
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.translate((0, 0, -self.angle_joint_gap/2))
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)
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ri = self.stator_bind_radius
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h = self.angle_joint_gap
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cyl = Cq.Solid.makeCylinder(
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radius=self.rotor_bind_bolt_diam/2,
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height=h,
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pnt=(ri * math.cos(th), ri * math.sin(th), -h/2),
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)
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result = result + flange - cyl
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result.tagAbsolute("holeStatorL", (ri * math.cos(th), ri * math.sin(th), h/2), direction="+Z")
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result.tagAbsolute("holeStatorR", (ri * math.cos(th), ri * math.sin(th), -h/2), direction="-Z")
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# Generate the flange geometry
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th = math.pi / self.n_side
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flange = (
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Cq.Workplane()
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.sketch()
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.regularPolygon(self.side_width_inner, self.n_side)
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.regularPolygon(self.side_width_inner - self.angle_joint_flange_extension, self.n_side, mode="s")
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.finalize()
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.extrude(self.angle_joint_gap)
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.translate((0, 0, -self.angle_joint_gap/2))
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)
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flange = flange * intersector
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ri = self.stator_bind_radius
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h = self.angle_joint_gap
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cyl = Cq.Solid.makeCylinder(
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radius=self.rotor_bind_bolt_diam/2,
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height=h,
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pnt=(0, 0, -h/2),
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)
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side_pos = Cq.Location(ri * math.cos(th), self.angle_joint_extra_hole_offset, 0)
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side_pos2 = Cq.Location.rot2d(360/self.n_side) * side_pos.flip_y()
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result = (
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result
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+ flange
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- cyl.moved(ri * math.cos(th), ri * math.sin(th), 0)
|
||||
- cyl.moved(side_pos.toTuple())
|
||||
- cyl.moved(side_pos2.toTuple())
|
||||
)
|
||||
result.tagAbsolute("holeStatorL", (ri * math.cos(th), ri * math.sin(th), h/2), direction="+Z")
|
||||
result.tagAbsolute("holeStatorR", (ri * math.cos(th), ri * math.sin(th), -h/2), direction="-Z")
|
||||
return result
|
||||
|
||||
def assembly_ring(self, base) -> Cq.Assembly:
|
||||
|
|
@ -1184,7 +1205,7 @@ class Onbashira(Model):
|
|||
material=self.material_side,
|
||||
role=Role.STRUCTURE | Role.DECORATION,
|
||||
)
|
||||
#.add(self.assembly_barrel(), name="barrel")
|
||||
.add(self.assembly_barrel(), name="barrel")
|
||||
)
|
||||
for i in range(self.n_side):
|
||||
j = (i + 1) % self.n_side
|
||||
|
|
@ -1205,6 +1226,13 @@ class Onbashira(Model):
|
|||
"Plane",
|
||||
)
|
||||
|
||||
a = a.constrain(
|
||||
f"barrel/stator2?holeB{i}",
|
||||
f"ring1/side{i}?holeStatorR",
|
||||
"Plane",
|
||||
)
|
||||
|
||||
# Generate bolts for the chamber back
|
||||
name_bolt =f"chamber_back{i}boltFPI{ih}"
|
||||
a = a.addS(
|
||||
BOLT_COMMON.generate(),
|
||||
|
|
|
|||
Loading…
Reference in New Issue