Added flat DXFs for milling/cutting the frames instead of printing (as proposed by Xander in the mail list)

Hardware/main_frame/Flat_DXFs/frame_flatDXFs.scad

@@ -0,0 +1,15 @@
+// Cyclone PCB Factory: a 3D printable CNC machine for PCB manufacture
+// Created by Carlosgs (http://carlosgs.es)
+// License: Attribution - Share Alike - Creative Commons (http://creativecommons.org/licenses/by-sa/3.0/)
+
+use <../frame.scad>
+
+module frame_flatDXF(with_motor = 0, show_printbed = 1) {
+  projection(cut=true)
+    translate([0,0,-1]) {
+      frame(with_motor, show_printbed);
+    }
+}
+
+//frame_flatDXF(with_motor = 1, show_printbed = 1);
+scale([-1,1,1]) frame_flatDXF(with_motor = 0, show_printbed = 1);