Update cutting sample authored by Hu Zheng's avatar Hu Zheng
......@@ -10,7 +10,7 @@ Cutting samples out of photoelastic material
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.
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.
[Pads from Vishay company](http://www.vishaypg.com/micro-measurements/photo-stress-plus/category/coating/?subCategory=materials)
......@@ -21,11 +21,14 @@ Cookie cutter method
Fix it with double sided tape
![cookietools](uploads/5579b28e96b4c1e73c00377f0f45d19d/cookietools.png)
Milling machine method
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Fix it with double sided tape
More details for Cookie cutter method and Milling machine method can refer Duke Physics Machine shop, where these methods were developed, and they provide photoelatic particles cutting services.
Water jet cutting method
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