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End-Around Pneumatic Cannon

Step 3Cutting and Sanding

Cutting and Sanding
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To cut the PVC pipe, I've always used a hacksaw. I don't know much about hacksaw blades, so I have probably been using a metal blade for PVC. It works just as well. Try to make a straight cut, it makes fittings easier. Clean off the plastic burrs, but don't get any slivers.

I heard somewhere that you should rough-up the bonding surfaces with sandpaper to help increase bond strength. I used regular sandpaper to rough-up both sides of the bond. You'll want to get a wet paper towel to clean up the PVC dust, which probably causes lung cancer, so don't breathe it in. Then get a dry paper towel to dry off the fittings.
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Author:matthewbeckler
A PhD student in Electrical and Computer Engineering at Carnegie Mellon University in Pittsburgh, PA.