Now combines some STLs into single files and puts all the ones that need printing the the plates directory.

Added hash bangs for Linux users.

plates.py

@@ -0,0 +1,52 @@
+#!/usr/bin/env python
+
+import sys
+import os
+import shutil
+from stls import stls, bom_to_stls
+
+plate_list = [
+    "cal.stl",
+    "bar_clamps.stl",
+    "cable_clips.stl",
+    "d_motor_brackets.stl",
+    "ribbon_clamps.stl",
+    "x_carriage_parts.stl",
+    "y_bearing_mounts.stl",
+    "y_belt_anchors.stl",
+    "z_motor_brackets.stl"
+]
+
+def plates(machine):
+    #
+    # Make the target directory
+    #
+    target_dir = machine + "/stls/plates"
+    if os.path.isdir(target_dir):
+        shutil.rmtree(target_dir)
+    os.makedirs(target_dir)
+    #
+    # Make the stls in the list
+    #
+    used = stls(machine, plate_list)
+    #
+    # Move them to the plates directory
+    for file in plate_list:
+        shutil.move(machine + "/stls/"+ file, target_dir + "/" + file)
+    #
+    # Move all the stls that are not in the plates to the plates directory
+    #
+    for file in bom_to_stls(machine):
+        path = machine + "/stls/"+ file
+        if not file in used:
+            if os.path.isfile(path):
+                shutil.move(path, target_dir + "/" + file)
+            else:
+                print "can't find %s to move" % path
+
+if __name__ == '__main__':
+    if len(sys.argv) > 1:
+        plates(sys.argv[1])
+    else:
+        print "usage: plates [mendel|sturdy|your_machine]"
+        sys.exit(1)