feat(cad): build the drive_shaft_bar_adapter part in 3d instead of 2d sides with PolarLocations

cad/build.py

@@ -86,27 +86,46 @@ def build_drive_shaft_mount():
     return drive_shaft_mount
 
 def build_drive_shaft_bar_adapter():
-    extrusion_size = 20
+    ext_size = 20
 
     height = 60
     thickness = 10
 
-    with BuildPart() as drive_shaft_bar_adapter_slice:
-        with BuildSketch(Plane.XZ.offset(extrusion_size / -2)):
-            Rectangle(extrusion_size + (thickness * 2), height, align=(Align.CENTER, Align.MIN))
+    ext_screw_hole_diam = 6
+    ext_screw_hole_offset = 10
 
-            with Locations((0, height - 10)):
-                Circle(5, mode=Mode.SUBTRACT)
-
-        extrude(amount=-thickness)
-
-        Box(extrusion_size / 2, extrusion_size / 2, thickness, align=(Align.MIN, Align.MIN, Align.MIN))
-        with Locations((8, 8, 0)):
-            Hole(4)
+    shaft_hub_bore_diam = 8
+    shaft_hub_center_diam = 14
+    shaft_hub_center_depth = 2
+    # if you where to draw a square around the center of the shaft hub this var is the length of the sides and each corner is the center of a screw hole
+    shaft_hub_screw_spacing = 16
+    shaft_hub_screw_diam = 4
+    # the depth of the screw holes into the shaft hub
+    shaft_hub_screw_depth = 8
+    shaft_hub_screw_head_depth = 4
+    shaft_hub_screw_head_diam = 7
 
     with BuildPart() as drive_shaft_bar_adapter:
-        with PolarLocations(0, 4):
-            add(drive_shaft_bar_adapter_slice)
+        Box(ext_size + (thickness * 2), ext_size + (thickness * 2), height, align=(Align.CENTER, Align.CENTER, Align.MIN))
+
+        # hollow the box
+        with Locations((0, 0, thickness)):
+            Box(ext_size, ext_size, height - thickness, align=(Align.CENTER, Align.CENTER, Align.MIN), mode=Mode.SUBTRACT)
+
+        # extrusion screw holes
+        with Locations((0, 0, height - ext_screw_hole_offset)):
+            with PolarLocations(4, 4):
+                with Locations(Rotation(0, 90, 0)):
+                    Hole(ext_screw_hole_diam / 2)
+
+        # shaft interface
+        with Locations(drive_shaft_bar_adapter.faces().filter_by(Plane.XY).sort_by(Axis.Z)[1].offset(shaft_hub_screw_head_depth)):
+            l = shaft_hub_screw_spacing / 2
+            with Locations((-l, -l), (-l, l), (l, -l), (l, l)):
+                CounterBoreHole(shaft_hub_screw_diam / 2, shaft_hub_screw_head_diam / 2, shaft_hub_screw_head_depth, thickness + shaft_hub_screw_depth)
+        with Locations(drive_shaft_bar_adapter.faces().sort_by(Axis.Z)[0].center()):
+            Hole(shaft_hub_bore_diam / 2)
+            Hole(shaft_hub_center_diam / 2, shaft_hub_center_depth)
 
     return drive_shaft_bar_adapter