diff --git a/boxes/generators/drillstand.py b/boxes/generators/drillstand.py
index 55a3894..391d9a5 100644
--- a/boxes/generators/drillstand.py
+++ b/boxes/generators/drillstand.py
@@ -157,13 +157,17 @@ Assembly: Start with putting the slots of the inner walls together. Then add the
         else:
             raise ValueError("Only edges h and f supported: ")
         self.corner(a)
-        self.edgeCorner(edges[0], edges[1], 90)
+        self.edgeCorner(edges[0], "e", 90)
+        self.corner(-90)
+        self.edgeCorner("e", edges[1], 90)
         edges[1](eh+h)
         self.edgeCorner(edges[1], edges[2], 90)
         edges[2](x)
         self.edgeCorner(edges[2], edges[3], 90)
         edges[3](h)
-        self.edgeCorner(edges[3], edges[0], 90)
+        self.edgeCorner(edges[3], "e", 90)
+        self.corner(-90)
+        self.edgeCorner("e", edges[0], 90)
 
         self.moveTo(0, self.burn+edges[0].startwidth(), 0)
         
diff --git a/boxes/generators/slatwalldrillbox.py b/boxes/generators/slatwalldrillbox.py
index 07daeb6..ec5f49b 100644
--- a/boxes/generators/slatwalldrillbox.py
+++ b/boxes/generators/slatwalldrillbox.py
@@ -75,15 +75,14 @@ class SlatwallDrillBox(DrillStand):
 
         bottom_angle = math.atan(self.extra_height / x) # radians
 
-        self.xOutsideWall(sh[0], "fFeF", move="up")
+        self.xOutsideWall(sh[0], "hFeF", move="up")
         for i in range(1, len(sy)):
             self.xWall(i, move="up")
-        self.xOutsideWall(sh[-1], "fCec", move="up")
+        self.xOutsideWall(sh[-1], "hCec", move="up")
 
-        self.rectangularWall(x/math.cos(bottom_angle)-t*math.tan(bottom_angle), y, "FeFe", callback=[self.bottomCB], move="up")
+        self.rectangularWall(x/math.cos(bottom_angle)-t*math.tan(bottom_angle), y, "fefe", callback=[self.bottomCB], move="up")
         
         self.sideWall(move="right")
         for i in range(1, len(sx)):
             self.yWall(i, move="right")
         self.sideWall(self.extra_height, move="right")
-