DIY - How to Hack a Toilet Paper Launcher!

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Kip Kay from Makezine shows you how to hack a “Toilet Paper Launcher”.
Of course, this is probably illegal if you launch TPs at your neighbors house but it might be a great way to cover your friend’s house with lots of Toilet Paper at graduation or his/her birthday.
via make
DIY - How to make your own Air powered BB Machine Gun!

I remember the days when I would buy a BB-Gun kit and build myself lots of guns and shoot them at my friends. (Well they were plastic BBs…)
Here’s a cool DIY on how to make your own BB machine gun powered by 40 PSI air. That’s a lot of fire power if you ask me. This machine gun is probably more dangerous than real guns at the speed which it can fire the BBs. (I wonder if you can use pellets…)
This item is unusual to be featured at Burnt Latke as it is pneumatic ‘launcher’. The original was created by Piper’s Precision and can be found at www.pipersprecisionproducts.com. A similar design was developed by the experienced builder; ’spudsonfire’, and posted in the forums at www.spudtech.com. The spudsonfire design uses a ‘vortex block’ to guide the BB’s into the barrel by means of the venturi effect. A continuous and plentiful supply of air at 40 PSI of higher is required and the rate of air consumption is quite high.
This BB gun is dangerous if used improperly.
Adult supervision is required during construction and operation.
Wear eye protection when shooting.
This isn’t the BB Machine gun mentioned here but still cool videos of some other BB Machine guns people have made in the past:
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Gigantic Tennis ball Launcher!

Check out this gigantic tennis ball launcher! A must if you are trying to help your
son or daughter become the next Venessa Williams. Just make sure to use a nice racket!
I built this launcher for a friend of mine after he helped me machine some custom aluminum frames for the 2005 ASME Regional Design Contest. It features a 2.5″ ID pvc pipe barrel (perfect for tennis balls) and a 4″ ID pvc chamber. The valve is a 2″ diaphragm sprinkler valve. I modified it to allow for remote pneumatic actuation rather than using the solenoid provided. I did this by removing the solenoid and covering the opening with epoxy. I then tapped into the chamber above the diaphragm and ran some .170″ ID polyethylene tubing to a push-button valve located midway down the launcher. The valve has the lowest working pressure at 150 psi, although I have only tested the launcher up to 125 psi.








