cutting-sample.md

 Cutting samples out of photoelastic material
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+[Precision Urethane](http://www.precisionurethane.com/) large diversity of shapes
+
+
 
 Material sheets
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+you can buy [sheets](http://www.precisionurethane.com/urethane-sheets.html) or [pads](http://www.precisionurethane.com/polyurethane-pads.html) depending on the thickness you want.
+pick thickness dimension and hardness we strongly encourage you not to buy to hard material (>70A) because the material can be knocked or folded during the shipping and residual stress can be induce. unless you specify it to the company.
+
+
 
 Cookie cutter method
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+Fix it with double sided tape
+
 
 Milling machine method
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+Fix it with double sided tape
 
 Water jet cutting method
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