Geometry of mirror and rotor spacer
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@ -1,6 +1,7 @@
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from dataclasses import dataclass, field
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import cadquery as Cq
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from nhf.build import Model, TargetKind, target, assembly, submodel
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from nhf.materials import Role, Material
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import nhf.touhou.yasaka_kanako.onbashira as MO
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import nhf.utils
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@ -8,36 +9,178 @@ import nhf.utils
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class Mirror(Model):
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"""
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Kanako's mirror, made of three levels.
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The mirror suface is sandwiched between two layers of wood. As such, its
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dimensions have to sit in between that of the aperature on the surface, and
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the outer walls. The width/height here refers to the outer edge's width and height
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"""
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width: float = 50.0
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height: float = 70.0
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height: float = 60.0
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wall_thickness: float = 10.0
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inner_gap: float = 3.0
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outer_gap: float = 3.0
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core_thickness: float = 25.4 / 8
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casing_thickness: float = 25.4 / 16
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flange_r0: float = 5.0
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flange_r1: float = 15.0
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flange_y1: float = 12.0
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flange_y2: float = 25.0
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flange_hole_r: float = 8.0
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wing_x1: float = 12.0
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wing_x2: float = 20.0
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wing_r1: float = 6.0
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wing_r2: float = 12.0
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tail_r0: float = 5.0
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tail_r1: float = 10.0
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tail_y1: float = 12.0
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tail_y2: float = 25.0
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# Necklace hole
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hole_diam: float = 5.0
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material_mirror: Material = Material.ACRYLIC_TRANSPARENT
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material_casing: Material = Material.WOOD_BIRCH
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@target(name="core", kind=TargetKind.DXF)
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def profile_core(self) -> Cq.Sketch:
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return Cq.Sketch().ellipse(self.width/2, self.height/2)
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rx = self.width/2 - self.outer_gap
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ry = self.height/2 - self.outer_gap
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return Cq.Sketch().ellipse(rx, ry)
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def core(self) -> Cq.Workplane:
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return (
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Cq.Workplane()
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.placeSketch(self.profile_core())
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.extrude(self.core_thickness)
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)
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@target(name="casing-bot", kind=TargetKind.DXF)
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def profile_casing(self) -> Cq.Sketch:
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def profile_casing_bot(self) -> Cq.Sketch:
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"""
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Base of the casing with no holes carved out
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"""
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dx = self.wall_thickness
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return (
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Cq.Sketch()
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.ellipse(self.width/2+dx, self.height/2+dx)
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.ellipse(self.width/2, self.height/2)
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)
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def casing_bot(self) -> Cq.Workplane:
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return (
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Cq.Workplane()
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.placeSketch(self.profile_casing_bot())
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.extrude(self.casing_thickness)
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)
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def profile_wing(self, sign: float=1) -> Cq.Sketch:
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xt = self.width / 2 - self.outer_gap
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return (
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Cq.Sketch()
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.polygon([
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(sign*xt, self.wing_r1),
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(sign*(xt+self.wing_x1), self.wing_r1),
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(sign*(xt+self.wing_x1), self.wing_r2),
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(sign*(xt+self.wing_x2), self.wing_r2),
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(sign*(xt+self.wing_x2), -self.wing_r2),
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(sign*(xt+self.wing_x1), -self.wing_r2),
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(sign*(xt+self.wing_x1), -self.wing_r1),
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(sign*xt, -self.wing_r1),
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])
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)
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@target(name="casing-mid", kind=TargetKind.DXF)
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def profile_casing_mid(self) -> Cq.Sketch:
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yt = self.height / 2 - self.outer_gap
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rx = self.width/2 - self.outer_gap
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ry = self.height/2 - self.outer_gap
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yh = (self.flange_y1 + self.flange_y2) / 2
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flange = (
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Cq.Sketch()
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.polygon([
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(self.flange_r0, yt),
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(self.flange_r0, yt + self.flange_y1),
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(self.flange_r1, yt + self.flange_y1),
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(self.flange_r1, yt + self.flange_y2),
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(-self.flange_r1, yt + self.flange_y2),
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(-self.flange_r1, yt + self.flange_y1),
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(-self.flange_r0, yt + self.flange_y1),
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(-self.flange_r0, yt),
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])
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.push([
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(self.flange_hole_r, yt+yh),
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(-self.flange_hole_r, yt+yh),
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])
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.circle(self.hole_diam/2, mode="s")
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)
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tail = (
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Cq.Sketch()
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.polygon([
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(+self.tail_r0, -yt),
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(+self.tail_r0, -yt - self.tail_y1),
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(+self.tail_r1, -yt - self.tail_y1),
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(+self.tail_r1, -yt - self.tail_y2),
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(-self.tail_r1, -yt - self.tail_y2),
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(-self.tail_r1, -yt - self.tail_y1),
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(-self.tail_r0, -yt - self.tail_y1),
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(-self.tail_r0, -yt),
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])
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)
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return (
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self.profile_casing_bot()
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.ellipse(rx, ry, mode="s")
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.boolean(flange, mode="a")
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.boolean(tail, mode="a")
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.boolean(self.profile_wing(-1), mode="a")
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.boolean(self.profile_wing(1), mode="a")
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)
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def casing_mid(self) -> Cq.Workplane:
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return (
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Cq.Workplane()
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.placeSketch(self.profile_casing_mid())
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.extrude(self.core_thickness)
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)
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@target(name="casing-top", kind=TargetKind.DXF)
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def profile_casing_top(self) -> Cq.Sketch:
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"""
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Base of the casing with no holes carved out
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"""
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rx = self.width/2 - self.outer_gap - self.inner_gap
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ry = self.height/2 - self.outer_gap - self.inner_gap
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return (
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self.profile_casing()
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.ellipse(self.width/2, self.height/2, mode="s")
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self.profile_casing_bot()
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.ellipse(rx, ry, mode="s")
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)
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def casing_top(self) -> Cq.Workplane:
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return (
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Cq.Workplane()
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.placeSketch(self.profile_casing_top())
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.extrude(self.casing_thickness)
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)
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@assembly()
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def assembly(self) -> Cq.Assembly:
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pass
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return (
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Cq.Assembly()
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.addS(
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self.core(),
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name="core",
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material=self.material_mirror,
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role=Role.DECORATION,
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loc=Cq.Location(0, 0, self.casing_thickness)
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)
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.addS(
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self.casing_bot(),
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name="casing_bot",
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material=self.material_casing,
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role=Role.CASING,
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)
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.addS(
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self.casing_mid(),
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name="casing_mid",
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material=self.material_casing,
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role=Role.CASING,
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loc=Cq.Location(0, 0, self.casing_thickness)
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)
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.addS(
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self.casing_top(),
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name="casing_top",
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material=self.material_casing,
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role=Role.CASING,
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loc=Cq.Location(0, 0, self.core_thickness + self.casing_thickness)
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)
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)
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@ -54,9 +54,9 @@ class Onbashira(Model):
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bearing_disk_thickness: float = 25.4 / 8
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rotor_inner_radius: float = 40.0
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rotor_bind_bolt_diam: float = 8.0
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rotor_bind_radius: float = 85.0
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rotor_spacer_outer_diam: float = 15.0
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stator_bind_radius: float = 140.0
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material_side: Material = Material.WOOD_BIRCH
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@ -194,6 +194,74 @@ class Onbashira(Model):
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"""
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pass
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def bearing_ball(self) -> Cq.Solid:
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return Cq.Solid.makeSphere(radius=self.bearing_ball_diam/2, angleDegrees1=-90)
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@target(name="rotor-spacer")
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def rotor_spacer(self) -> Cq.Solid:
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outer = Cq.Solid.makeCylinder(
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radius=self.rotor_spacer_outer_diam/2,
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height=self.bearing_disk_gap,
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)
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inner = Cq.Solid.makeCylinder(
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radius=self.rotor_bind_bolt_diam/2,
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height=self.bearing_disk_gap
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)
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return outer - inner
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def assembly_rotor(self) -> Cq.Assembly:
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z_lower = -self.bearing_disk_gap/2 - self.bearing_disk_thickness
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a = (
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Cq.Assembly()
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.addS(
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self.bearing_stator(),
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name="stator1",
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material=self.material_bearing,
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role=Role.STATOR,
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loc=Cq.Location(0, 0, self.bearing_disk_gap/2)
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)
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.addS(
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self.bearing_rotor(),
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name="rotor1",
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material=self.material_bearing,
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role=Role.ROTOR,
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loc=Cq.Location(0, 0, self.bearing_disk_gap/2)
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)
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.addS(
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self.bearing_stator(),
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name="stator2",
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material=self.material_bearing,
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role=Role.STATOR,
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loc=Cq.Location(0, 0, z_lower)
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)
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.addS(
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self.bearing_rotor(),
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name="rotor2",
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material=self.material_bearing,
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role=Role.ROTOR,
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loc=Cq.Location(0, 0, z_lower)
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)
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.addS(
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self.bearing_gasket(),
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name="gasket",
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material=self.material_bearing,
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role=Role.ROTOR,
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loc=Cq.Location(0, 0, -self.bearing_disk_thickness/2)
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)
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)
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for i in range(self.n_bearing_balls):
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ball = self.bearing_ball()
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loc = Cq.Location.rot2d(i * 360/self.n_bearing_balls) * Cq.Location(self.bearing_track_radius, 0, 0)
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a = a.addS(
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ball,
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name=f"bearing_ball{i}",
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material=self.material_bearing_ball,
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role=Role.BEARING,
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loc=loc,
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)
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return a
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def profile_side_panel(
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self,
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length: float,
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@ -394,61 +462,6 @@ class Onbashira(Model):
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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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def bearing_ball(self) -> Cq.Solid:
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return Cq.Solid.makeSphere(radius=self.bearing_ball_diam/2, angleDegrees1=-90)
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def assembly_rotor(self) -> Cq.Assembly:
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z_lower = -self.bearing_disk_gap/2 - self.bearing_disk_thickness
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a = (
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Cq.Assembly()
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.addS(
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self.bearing_stator(),
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name="stator1",
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material=self.material_bearing,
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role=Role.STATOR,
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loc=Cq.Location(0, 0, self.bearing_disk_gap/2)
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)
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.addS(
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self.bearing_rotor(),
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name="rotor1",
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material=self.material_bearing,
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role=Role.ROTOR,
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loc=Cq.Location(0, 0, self.bearing_disk_gap/2)
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)
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.addS(
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self.bearing_stator(),
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name="stator2",
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material=self.material_bearing,
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role=Role.STATOR,
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loc=Cq.Location(0, 0, z_lower)
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)
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.addS(
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self.bearing_rotor(),
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name="rotor2",
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material=self.material_bearing,
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role=Role.ROTOR,
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loc=Cq.Location(0, 0, z_lower)
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)
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.addS(
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self.bearing_gasket(),
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name="gasket",
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material=self.material_bearing,
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role=Role.ROTOR,
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loc=Cq.Location(0, 0, -self.bearing_disk_thickness/2)
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)
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)
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for i in range(self.n_bearing_balls):
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ball = self.bearing_ball()
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loc = Cq.Location.rot2d(i * 360/self.n_bearing_balls) * Cq.Location(self.bearing_track_radius, 0, 0)
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a = a.addS(
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ball,
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name=f"bearing_ball{i}",
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material=self.material_bearing_ball,
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role=Role.BEARING,
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loc=loc,
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)
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return a
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def assembly_section(self, **kwargs) -> Cq.Assembly:
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a = Cq.Assembly()
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side = self.side_panel(**kwargs)
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