migrate to cadquery

2026-07-27 07:14:41 +00:00 · 2024-11-10 01:21:10 +01:00
parent 07ee3c1fbf
commit dc68d65aed
71 changed files with 1165155 additions and 529 deletions
@@ -0,0 +1,45 @@
+import cadquery as cq
+from params import Params
+import math
+
+
+def tooth(params: Params, plane: cq.Plane):
+    return (
+        cq.Workplane(plane)
+        .box(params.teeth_width, params.teeth_outer_width, params.teeth_height)
+        .edges("|Z")
+        .chamfer(
+            (params.teeth_outer_width - params.teeth_inner_width) / 2,
+            params.teeth_width / 3,
+        )
+    )
+
+
+def rail_teeth(params: Params, path: cq.Wire):
+    path_wire_length = path.Length()
+    teeth_count = math.floor(
+        path_wire_length / (params.teeth_width + params.teeth_spacing)
+    )
+    t0 = path.tangentAt(0)
+
+    workplane = (
+        cq.Workplane(cq.Plane(path.positionAt(0), -t0.cross(cq.Vector(0, 0, 1)), t0))
+        .center(0, params.height + params.teeth_height / 2)
+        .rect(params.teeth_inner_width, params.teeth_height)
+        .sweep(path)
+    )
+
+    for i in range(1, teeth_count + 1):
+        d = (i - 0.5) / (teeth_count)
+        workplane = workplane.add(
+            tooth(
+                params,
+                cq.Plane(
+                    path.positionAt(d)
+                    + cq.Vector(0, 0, params.height + params.teeth_height / 2),
+                    path.tangentAt(d),
+                ),
+            )
+        )
+
+    return workplane.combine()