Retrofit handle
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D5F96287843E8DFB
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@ -121,6 +121,8 @@ 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_thickness: float = 7.8
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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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@ -160,9 +162,9 @@ class Onbashira(Model):
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stator_bind_radius: float = 135.0
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handle_base_height: float = 10.0
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handle_thickness: float = 12.0
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handle_length: float = 80.0
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handle_height: float = 40.0
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handle_thickness: float = 17.0
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handle_length: float = 140.0
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handle_height: float = 50.0
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motor: Motor = Motor()
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@ -725,6 +727,32 @@ class Onbashira(Model):
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)
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return a
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def angle_joint_flange(self) -> Cq.Workplane:
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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_flange_thickness)
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.translate((0, 0, -self.angle_joint_flange_thickness/2))
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)
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ri = self.stator_bind_radius
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h = self.angle_joint_flange_thickness
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# drill hole
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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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return flange - cyl
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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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@ -996,34 +1024,10 @@ class Onbashira(Model):
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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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flange = self.angle_joint_flange()
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result = result + self.angle_joint_flange()
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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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# 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, -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.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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@ -1146,33 +1150,10 @@ class Onbashira(Model):
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result.tagAbsolute(f"holeRSM{i}", locrot * Cq.Location(dr0, -x, -py), direction="-X")
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# Generate the flange geometry
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flange = self.angle_joint_flange()
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result = result + self.angle_joint_flange()
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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)
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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.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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@ -1194,7 +1175,9 @@ class Onbashira(Model):
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def handle(self) -> Cq.Workplane:
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w = self.side_width + self.angle_joint_extra_width
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base = (
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Cq.Workplane()
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Cq.Workplane(
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origin=(0, 0, -self.handle_base_height)
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)
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.box(
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length=w,
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width=self.angle_joint_depth,
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@ -1216,16 +1199,40 @@ class Onbashira(Model):
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depth=None,
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)
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)
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handle = (
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Cq.Workplane(origin=(0, 0, self.handle_height))
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.box(
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length=self.handle_length,
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width=self.handle_thickness,
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height=self.handle_thickness,
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)
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dx = self.handle_length / 2 - self.handle_thickness / 2
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assert self.handle_length < w
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z = self.handle_height - self.handle_thickness / 2
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handle = Cq.Solid.makeCylinder(
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radius=self.handle_thickness/2,
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height=dx * 2,
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pnt=(-dx, 0, z),
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dir=(1, 0, 0),
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)
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return base + handle
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pillar = Cq.Solid.makeCylinder(
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radius=self.handle_thickness/2,
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height=z,
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)
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joint = Cq.Solid.makeSphere(radius=self.handle_thickness/2)
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result = (
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base +
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handle +
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pillar.moved(dx, 0, 0) +
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pillar.moved(-dx, 0, 0) +
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joint.moved(dx, 0, z) +
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joint.moved(-dx, 0, z)
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)
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t = self.handle_base_height
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for i, (x, y) in enumerate(self.angle_joint_bolt_position):
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result.tagAbsolute(f"holeLPO{i}", (+x, y, 0), direction="+Z")
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result.tagAbsolute(f"holeLSO{i}", (-x, y, 0), direction="+Z")
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result.tagAbsolute(f"holeLPI{i}", (+x, y, -t), direction="-Z")
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result.tagAbsolute(f"holeLSI{i}", (-x, y, -t), direction="-Z")
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result.tagAbsolute(f"holeRPO{i}", (+x, -y, 0), direction="+Z")
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result.tagAbsolute(f"holeRSO{i}", (-x, -y, 0), direction="+Z")
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result.tagAbsolute(f"holeRPI{i}", (+x, -y, -t), direction="-Z")
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result.tagAbsolute(f"holeRSI{i}", (-x, -y, -t), direction="-Z")
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return result
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@assembly()
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def assembly(self) -> Cq.Assembly:
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a = Cq.Assembly()
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@ -1269,8 +1276,26 @@ class Onbashira(Model):
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material=self.material_side,
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role=Role.STRUCTURE | Role.DECORATION,
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)
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.add(self.assembly_barrel(), name="barrel")
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.addS(
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self.handle(),
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name="handle",
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material=self.material_brace,
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role=Role.STRUCTURE,
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)
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#.add(self.assembly_barrel(), name="barrel")
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)
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# Add handle
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for ih, (x, y) in enumerate(self.angle_joint_bolt_position):
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a = a.constrain(
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f"handle?holeLPI{ih}",
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f"ring2/side0?holeLPO{ih}",
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"Plane",
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)
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a = a.constrain(
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f"handle?holeRPI{ih}",
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f"ring2/side0?holeRPO{ih}",
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"Plane",
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)
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for i in range(self.n_side):
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j = (i + 1) % self.n_side
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for ih in range(len(self.angle_joint_bolt_position)):
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@ -1290,11 +1315,11 @@ class Onbashira(Model):
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"Plane",
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)
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a = a.constrain(
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f"barrel/stator2?holeB{i}",
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f"ring1/side{i}?holeStatorR",
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"Plane",
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)
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#a = a.constrain(
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# f"barrel/stator2?holeB{i}",
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# f"ring1/side{i}?holeStatorR",
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# "Plane",
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#)
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# Generate bolts for the chamber back
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name_bolt =f"chamber_back{i}boltFPI{ih}"
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