Motor and bolt models

nhf/parts/fasteners.py

@@ -11,6 +11,7 @@ class FlatHeadBolt(Item):
     height_head: float
     diam_thread: float
     height_thread: float
+    pitch: float = 1.0
 
     @property
     def name(self) -> str:

nhf/touhou/yasaka_kanako/onbashira.py

@@ -1,11 +1,56 @@
 from nhf.build import Model, TargetKind, target, assembly, submodel
 from nhf.materials import Role, Material
 import nhf.utils
+from nhf.parts.fasteners import FlatHeadBolt, HexNut, Washer
 
 import math
 from dataclasses import dataclass, field
 import cadquery as Cq
 
+NUT_COMMON = HexNut(
+    # FIXME: measure
+    mass=0.0,
+    diam_thread=6.0,
+    pitch=1.0,
+    thickness=5.0,
+    width=9.89,
+)
+WASHER_COMMON = Washer(
+    # FIXME: measure
+    mass=0.0,
+    diam_thread=6.0,
+    diam_outer=11.68,
+    thickness=1.5,
+)
+BOLT_COMMON = FlatHeadBolt(
+    # FIXME: measure
+    mass=0.0,
+    diam_head=12.8,
+    height_head=2.8,
+    diam_thread=6.0,
+    height_thread=30.0,
+    pitch=1.0,
+)
+
+@dataclass
+class Motor(Model):
+
+    mass: float = 589.7
+    voltage: float = 12.0 # V
+    power: float = 30.0 # watts
+
+    diam_thread: float = 4.0
+    diam_body: float = 51.82
+    height_body: float = 70.87
+    height_shaft: float = 37.85
+
+    def __post_init__(self):
+        pass
+
+    def model(self) -> Cq.Workplane:
+        pass
+
+
 @dataclass
 class Onbashira(Model):
 
@@ -48,7 +93,9 @@ class Onbashira(Model):
 
     # Dimensions of gun barrels
     barrel_diam: float = 25.4 * 1.5
-    barrel_length: float = 300.0
+    barrel_wall_thickness: float = 25.4 / 8
+    barrel_length: float = 25.4 * 12
+
     # Radius from barrel centre to axis
     rotation_radius: float = 66.0
     n_bearing_balls: int = 12
@@ -77,6 +124,7 @@ class Onbashira(Model):
     material_bearing: Material = Material.PLASTIC_PLA
     material_spacer: Material = Material.PLASTIC_PLA
     material_bearing_ball: Material = Material.ACRYLIC_TRANSPARENT
+    material_barrel: Material = Material.ACRYLIC_BLACK
     material_brace: Material = Material.PLASTIC_PLA
 
     def __post_init__(self):
@@ -96,6 +144,8 @@ class Onbashira(Model):
         # Ensure the stator could be printed on a 12x12in board
         assert self.side_width * 2 < 12 * 25.4
 
+        assert self.barrel_wall_thickness * 2 < self.barrel_diam
+
     @property
     def angle_side(self) -> float:
         return 360 / self.n_side