Update README.md

README.md

@@ -3,11 +3,14 @@
 <img src='img/ur-rotation-end-effector.png' height=400px>
 <img src='img/wiz-and-rotary.jpg' height=400px>
 
+Cutting and folding sheets may be the fastest way to put precision features on multiple planes.  A sheet fabricated prototype can go from design to part in minutes and scale to massive production volumes.
+
+
 ### Materials
 
 * Cardboard
 * Paper
-* <a href='http://www.itwformex.com/'Polypropylene</a>
+* <a href='http://www.itwformex.com/'>Polypropylene</a>
 * <a href='https://www.mcmaster.com/#standard-plastic-sheets/=1a6mf16'>Dibond</a>
 * Steel
 * Stainless Steel
@@ -22,6 +25,12 @@
 * Half-cutting
 * Bevel routing
 
+### Design Factors
+
+* Thickness
+* K-Factor
+* Relief
+
 
 ### Design tools