Initial test

.gitignore

@@ -0,0 +1,10 @@
+# Python-generated files
+__pycache__/
+*.py[oc]
+build/
+dist/
+wheels/
+*.egg-info
+
+# Virtual environments
+.venv

.python-version

@@ -0,0 +1 @@
+3.11

opel_pin.py

@@ -0,0 +1,76 @@
+from build123d import *
+from ocp_vscode import show
+
+# ==========================================
+# --- MASTER PARAMETER ---
+# Defines the outer diameter in mm. 
+# Change this single value to scale the entire model!
+model_size = 35.0  
+# ==========================================
+
+# --- Derived Parameters ---
+# All dimensions are calculated as fractions of the original 35mm baseline
+outer_diameter = model_size
+inner_diameter = model_size * (29.0 / 35.0)
+thickness      = model_size * (2.0 / 35.0)
+
+# Pin dimensions
+pin_diameter   = model_size * (2.0 / 35.0)
+pin_length     = model_size * (5.0 / 35.0)
+pin_spacing    = model_size * (14.0 / 35.0) # Distance from center to each pin
+
+# --- Lightning Bolt Proportions ---
+# W is a safe overhang width (guaranteed to be outside the ring for clean intersection)
+W = outer_diameter * 1.2
+
+# Vertical (Y) heights for the horizontal bars
+y_top_outer = model_size * (4.0 / 35.0)
+y_top_inner = model_size * (2.0 / 35.0)
+y_bot_outer = model_size * (-4.0 / 35.0)
+y_bot_inner = model_size * (-2.0 / 35.0)
+
+# Horizontal (X) positions mapping the central diagonal cut
+x_inner_left  = model_size * (-2.0 / 35.0)
+x_diag_bot    = model_size * (-6.0 / 35.0)
+x_inner_right = model_size * (2.0 / 35.0)
+x_diag_top    = model_size * (6.0 / 35.0)
+
+
+with BuildPart() as opel_pin:
+    # 1. Base Ring
+    with BuildSketch() as ring_sketch:
+        Circle(outer_diameter / 2)
+        Circle(inner_diameter / 2, mode=Mode.SUBTRACT)
+    extrude(amount=thickness)
+
+    # 2. Lightning Bolt Profile (Fully Parametric)
+    with BuildSketch() as bolt_sketch:
+        # Drawing the Z-shape using our dynamic variables
+        pts = [
+            (-W, y_top_outer),             # 1. Top-left outer edge
+            (-W, y_bot_inner),             # 2. Bottom-left outer edge
+            (x_inner_left, y_bot_inner),   # 3. Inner bottom-left corner
+            (x_diag_bot, y_bot_outer),     # 4. Diagonal drop to the lower bar
+            (W, y_bot_outer),              # 5. Bottom-right outer edge
+            (W, y_top_inner),              # 6. Top-right outer edge
+            (x_inner_right, y_top_inner),  # 7. Inner top-right corner
+            (x_diag_top, y_top_outer)      # 8. Diagonal rise back to the upper bar
+        ]
+        Polygon(*pts)
+        
+        # Cleanly slice off the overhangs using the outer circle
+        Circle(outer_diameter / 2, mode=Mode.INTERSECT)
+    extrude(amount=thickness)
+
+    # 3. Mounting Pins (on the back face)
+    bottom_face = opel_pin.faces().sort_by(Axis.Z)[0]
+    
+    with BuildSketch(bottom_face) as pin_sketch:
+        # Place pins dynamically based on the scale
+        with Locations((-pin_spacing, 0), (pin_spacing, 0)):
+            Circle(pin_diameter / 2)
+            
+    extrude(amount=pin_length)
+
+# --- Send to OCP CAD Viewer ---
+show(opel_pin)

pyproject.toml

@@ -0,0 +1,10 @@
+[project]
+name = "opel-cad"
+version = "0.1.0"
+description = "Add your description here"
+readme = "README.md"
+requires-python = ">=3.11"
+dependencies = [
+    "build123d>=0.11.0",
+    "ocp-vscode>=3.4.0",
+]