Compressed Air Tennis Ball Mortar: After making several small compressed air cannons I decided to make a Tennis Ball Mortar. This project can be a little bit ...
homemade-tennis-ball-cannon
2.5 inch diameter schedule 40 is a tight fit for tennis balls, but does the job well. A note here about the barrel. Schedule 40 PVC is fairly available, and Tennis balls​ .... The 1.27-kg cannon is loaded with a 54-gram tennis ball and placed on the floor. Mr. H adds the fuel, waits for its vapors to fill the reaction chamber and then ... 939c2ea5af
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