Ping Pong Ball Launcher With Rubber Band

Loop a 64 rubber band through each hold on the ping pong ball holder and then loop it through itself so it is securely attached.

Ping pong ball launcher with rubber band.

Cardboard or plywood makes a good target. Now i am a successful ping pong ball launcher. Don t forget to wear safety goggles. If the clothespin is to weak to hold the rubber band wrap another rubber band around the gun to strengthen it.

This is 3 4 inch extruded aluminum and it s connected with a 8 32 by 1 and 1 2 inch machine screw. Put your ping pong ball launcher together. Mine where 3 5 cm or 35 mm but i also saw 4 cm or 40 mm ping pong balls in a store. How we changed the design.

The other is that the bead strikes the lid when you release it which causes the rubber bands to come to an abrupt stop releasing the ping pong ball. The future city competition is a national project based learning experience where middle school students imagine design and build. These will ofcourse not fit in the 3 5 cm compartments of your gun so you should take the second plan with holes for the 4cm ping pong ball. You can get a clean release with the bead which prevents taking energy away from the rubber bands.

Putting your ping pong ball launcher together is pretty easy once you have all the pieces hammered in. The ping pong projector. The engineering fair is an engineering competition having bridge building eiffel tower electric motor essay ping pong ball launcher rubber band powered vehicle and wacky wonder works contests. Load a pingpong ball and you re ready to launch.

Make it an experiment. The rubber band needs to be placed so that the clip lies flat against the tube. Remember to check the diameter of your ping pong balls before making this gun. And that causes the bar to stop so that the ping pong ball is released.

This would be a great project to do with a class or a group. And we had a track on the arm that the ping pong ball ran on for launching. This is a piece of pvc. And then if you look over here we have a stop that s a 5 16 bolt.

And we have a. We had a long arm with a rubber band hooked up to poles at the end of the arm for tentioning the rubber band with. It s screwed on to this extruded aluminum piece.