Quote:
Originally Posted by blueyoshi256
We used a wheel to fire them. It works pretty well. They go about halfway across the width of a gym, and we can make them slower if needed (so as not to harm little kids). A couple of notes: a single wheel creates massive backspin. It was really fun when we had it horizontal, but vertical is better for the bot. Also, the system will vibrate because of the wheel. Our wooden prototype from 2 years ago would vibrate so much that the ping pong balls wouldn't get sucked down into the shooter. The switch to a metal frame fixed it. We still don't have a great indexer working, so no advice there, but we are trying.
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Thanks, It is a project i would really like to do. Did your team think about using pneumatics as that is what we are considering. I originally got the idea from popular science here
http://www.popsci.com/build-300-mph-pingpong-cannon. The video at the bottom of the article is pretty cool. If our team ever made a pneumatic ping pong ball shooter for a robot we would reduce the air pressure for safety reasons of course. Thanks for the response.