From ef0b0dad910f315a7881f792e611fd43fe17c20c Mon Sep 17 00:00:00 2001
From: Leni Aniva <v@leni.sh>
Date: Fri, 30 May 2025 01:33:14 -0700
Subject: [PATCH] Add reinforcements to motor seat

---
 nhf/touhou/yasaka_kanako/onbashira.py | 31 ++++++++++++++++++++++++---
 1 file changed, 28 insertions(+), 3 deletions(-)

diff --git a/nhf/touhou/yasaka_kanako/onbashira.py b/nhf/touhou/yasaka_kanako/onbashira.py
index 9a31af1..b696ca0 100644
--- a/nhf/touhou/yasaka_kanako/onbashira.py
+++ b/nhf/touhou/yasaka_kanako/onbashira.py
@@ -1053,6 +1053,7 @@ class Onbashira(Model):
         theta = math.pi / self.n_side
         theta2 = theta * 0.5
         theta1 = theta * 1.3
+        cover_thickness = 4.0
         track_width = 7.0
         r0 = self.bulk_radius
         r1 = self.rotation_radius + gap
@@ -1113,8 +1114,6 @@ class Onbashira(Model):
             Cq.Workplane()
             .sketch()
             .circle(r1)
-            .circle(self.rotation_radius+track_width/2, mode="s")
-            .circle(self.rotation_radius-track_width/2)
             .circle(r2_5, mode="s")
             .polygon([
                 (0, 0),
@@ -1130,6 +1129,29 @@ class Onbashira(Model):
             .finalize()
             .extrude(t1)
         )
+        channel = (
+            Cq.Workplane()
+            .sketch()
+            .circle(self.rotation_radius+track_width/2)
+            .circle(self.rotation_radius-track_width/2, mode="s")
+            .finalize()
+            .extrude(t1)
+            .translate((0, 0, self.motor_seat_depth - t1))
+        )
+        channel_cover = (
+            Cq.Workplane()
+            .sketch()
+            .circle(self.rotation_radius+track_width/2)
+            .circle(self.rotation_radius-track_width/2, mode="s")
+            .polygon([
+                (0, 0),
+                (r0 * math.cos(theta1), r0 * math.sin(theta1)),
+                (r0 * math.cos(theta2), r0 * math.sin(theta2)),
+            ], mode="i")
+            .finalize()
+            .extrude(cover_thickness)
+            .translate((0, 0, self.motor_seat_depth - cover_thickness))
+        )
 
         # Construct the connection between the front and back
 
@@ -1148,7 +1170,7 @@ class Onbashira(Model):
         profile_bridge_outer_top = (
             Cq.Sketch()
             .circle(r1)
-            .circle(self.rotation_radius+track_width/2, mode="s")
+            .circle(self.rotation_radius, mode="s")
             .polygon([
                 (0, 0),
                 (r0 * math.cos(theta1), r0 * math.sin(theta1)),
@@ -1198,6 +1220,9 @@ class Onbashira(Model):
             + bridge_inner
             + bridge_inner.mirror("XZ")
             - hole_subtractor
+            - channel
+            + channel_cover
+            + channel_cover.mirror("XZ")
         )
 
         # Mark the mount points