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Re: pic: T-Shirt Cannon at Purdue's Homecoming
One thing we found to be quite helpful in getting the pressure tanks recharged quickly on our T-Shirt shooter was to only leave the firing valve open for only approx. .25 sec. This would only drain our tank by about 50%. Considering we used the KOP compressor to charge them, it made recharging WAY faster!
Now, if you have plenty of CO2, then it really doesn't matter how long you leave the valve open. We found that when we left the valve open for a full 1 sec, the sound our canon made was quite satisfyingly resonant. Almost like a big BUuUuURRRPP.
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CalGames 2009 Autonomous Champion Award winner
Sacramento 2010 Creativity in Design winner, Sacramento 2010 Quarter finalist
2011 Sacramento Finalist, 2011 Madtown Engineering Inspiration Award.
2012 Sacramento Semi-Finals, 2012 Sacramento Innovation in Control Award, 2012 SVR Judges Award.
2012 CalGames Autonomous Challenge Award winner ($$$).
2014 2X Rockwell Automation: Innovation in Control Award (CVR and SAC). Curie Division Gracious Professionalism Award.
2014 Capital City Classic Winner AND Runner Up. Madtown Throwdown: Runner up.
2015 Innovation in Control Award, Sacramento.
2016 Chezy Champs Finalist, 2016 MTTD Finalist
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Just to be clear, NOTHING anyone says here is a confirmation. The ONLY source for official answers to questions like this is the FIRST Q&A system. - dlavery [more] 
30-10-2007, 14:54
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