diff --git a/cw.py b/cw.py
index 1d4a4b0..521208e 100755
--- a/cw.py
+++ b/cw.py
@@ -1,6 +1,7 @@
 #!/usr/bin/python
 
 import sys, math
+import shape
 
 
 group = None
@@ -211,47 +212,14 @@ def rect(x0, y0, z0, x1, y1, z1):
     do(x0, y0, z0, x1, y1, z1)
 
 
-#
-# make the base
-#
-
-def make_base():
-    rect(16,   46.0, 2.6,  22,   55,   2.6)	# left lateral, bottom
-    rect(22,   46.0, 3.7,  24,   55,   3.7)	# on pedestal
-    rect(89.5, 46.0, 2.6,  99.5, 55,   2.6)	# right lateral, bottom
-    rect(88,   46.0, 3.7,  89.5, 55,   3.7)	# on pedestal
-
-    rect(29.5, 50,   3.7,  36,   55,   3.7)	# left podium, to beam
-    rect(38.5, 50,   3.7,  41,   55,   3.7)	# after beam
-    rect(71,   50,   3.7,  82,   55,   3.7)	# right podium
-
-    rect(16,   55,   2.6,  36,   60,   3.9)	# middle bar, to 1st beam
-    rect(38.5, 55,   2.6,  46,   60,   3.9)	# between beams
-    rect(48,   55,   2.6,  52.5, 60,   3.9)	# 2nd beam to battery lid
-    rect(59.5, 55,   2.6,  99.5, 60,   3.9)	# right of battery lid "tongue"
-
-    rect(36,   56,   3.9,  38.5, 60,   3.9)	# cover the beams
-    rect(46,   56,   3.9,  48,   60,   3.9)
-
-    rect(52.5, 56.5, 3.0,  59.5, 60,   3.9)	# cover the lid "tongue"
-
-    rect(15,   60,   3.9,  60.5, 64,   3.9)	# end bar, left of beam
-    rect(62.5, 60,   3.9, 100, 64,   3.9)	# right of beam
-
-    rect(15,   64,   3.9,  34,   69.5, 3.9)	# left "ear"
-    rect(89.5, 64,   3.9, 100,   69,   3.9)	# right "ear"
-
-    rect(34,   64,   3.9,  60.5, 65,   3.9)	# extend inner area to sponge
-    rect(62.5, 64,   3.9,  82.5, 65,   3.9)
-
-
 if __name__ == "__main__":
     do = rect_gnuplot
 else:
     import HeeksPython as cad
     do = rect_cad
 
-make_base()
+shape.rect = rect
+shape.make_base()
 
 #
 # for wax model
diff --git a/shape.py b/shape.py
new file mode 100755
index 0000000..e4c9976
--- /dev/null
+++ b/shape.py
@@ -0,0 +1,34 @@
+#!/usr/bin/python
+
+#
+# make the base
+#
+
+def make_base():
+    rect(16,   46.0, 2.6,  22,   55,   2.6)	# left lateral, bottom
+    rect(22,   46.0, 3.7,  24,   55,   3.7)	# on pedestal
+    rect(89.5, 46.0, 2.6,  99.5, 55,   2.6)	# right lateral, bottom
+    rect(88,   46.0, 3.7,  89.5, 55,   3.7)	# on pedestal
+
+    rect(29.5, 50,   3.7,  36,   55,   3.7)	# left podium, to beam
+    rect(38.5, 50,   3.7,  41,   55,   3.7)	# after beam
+    rect(71,   50,   3.7,  82,   55,   3.7)	# right podium
+
+    rect(16,   55,   2.6,  36,   60,   3.9)	# middle bar, to 1st beam
+    rect(38.5, 55,   2.6,  46,   60,   3.9)	# between beams
+    rect(48,   55,   2.6,  52.5, 60,   3.9)	# 2nd beam to battery lid
+    rect(59.5, 55,   2.6,  99.5, 60,   3.9)	# right of battery lid "tongue"
+
+    rect(36,   56,   3.9,  38.5, 60,   3.9)	# cover the beams
+    rect(46,   56,   3.9,  48,   60,   3.9)
+
+    rect(52.5, 56.5, 3.0,  59.5, 60,   3.9)	# cover the lid "tongue"
+
+    rect(15,   60,   3.9,  60.5, 64,   3.9)	# end bar, left of beam
+    rect(62.5, 60,   3.9, 100, 64,   3.9)	# right of beam
+
+    rect(15,   64,   3.9,  34,   69.5, 3.9)	# left "ear"
+    rect(89.5, 64,   3.9, 100,   69,   3.9)	# right "ear"
+
+    rect(34,   64,   3.9,  60.5, 65,   3.9)	# extend inner area to sponge
+    rect(62.5, 64,   3.9,  82.5, 65,   3.9)