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Step 7: Add handles

Since I was not planning to use this in the field (just yet) but rather testing compression ratios I used vice grips as an adjustable piston stop and for the piston handle and a towel to hold the cylinder. For field use you can used pieces of wood with a hole drilled in them the size of the outside diameter of the piston and the outside diameter of the cylinder and secure them with epoxy.
 
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