Supply router working except:

Off grid pins. Some pins do now span enough of the routing track and must be patched.
  Route track width. Instead of minimum width route, it should be the track width.

compiler/base/pin_layout.py

@@ -30,9 +30,26 @@ class pin_layout:
         return "({} layer={} ll={} ur={})".format(self.name,self.layer,self.rect[0],self.rect[1])
 
     def __repr__(self):
-        """ override print function output """
-        return "({} layer={} ll={} ur={})".format(self.name,self.layer,self.rect[0],self.rect[1])
+        """ 
+        override repr function output (don't include 
+        name since pin shapes could have same shape but diff name e.g. blockage vs A)
+        """
+        return "(layer={} ll={} ur={})".format(self.layer,self.rect[0],self.rect[1])
 
+    def __hash__(self):
+        """ Implement the hash function for sets etc. """
+        return hash(repr(self))
+    
+    def __lt__(self, other):
+        """ Provide a function for ordering items by the ll point """
+        (ll, ur) = self.rect
+        (oll, our) = other.rect
+        
+        if ll.x < oll.x and ll.y < oll.y:
+            return True
+            
+        return False
+    
     def __eq__(self, other):
         """ Check if these are the same pins for duplicate checks """
         if isinstance(other, self.__class__):
@@ -71,6 +88,10 @@ class pin_layout:
         """ Check if a shape overlaps with a rectangle  """
         (ll,ur) = self.rect
         (oll,our) = other.rect
+
+        # Can only overlap on the same layer
+        if self.layer != other.layer:
+            return False
         
         # Start assuming no overlaps
         x_overlaps = False