migrate to cadquery

src/params.py

@@ -0,0 +1,39 @@
+from dataclasses import dataclass
+import units as u
+
+
+@dataclass
+class Params:
+    radius: float
+    to: tuple
+    shell: bool
+    hollow_studs: bool
+
+    width: float = u.studs(4)
+    height = u.studs(1)
+
+    start_joint = True
+    end_joint = True
+    joint_studs = 2
+
+    nail_slot = True
+    nail_slot_size = (u.studs(1), u.ldu(1), u.ldu(1))
+
+    connector = True
+    connector_position = u.ldu(4)
+    connector_width = u.ldu(8)
+    connector_depth = u.ldu(1)
+
+    shell_mid_thickness = u.stud(1)
+    shell_mid_cut_thickness = u.ldu(4)
+    shell_support = True
+
+    standoff_height = u.brick(1)
+    standoff_padding = u.ldu(6)
+    standoff_studs = (1, 2)
+
+    teeth_height = u.ldu(7)
+    teeth_width = u.ldu(2)
+    teeth_spacing = u.ldu(1)
+    teeth_inner_width = u.ldu(10)
+    teeth_outer_width = u.ldu(14)