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Re: Help Identify This T-Shirt Cannon Robot Please
Quote:
Originally Posted by Cory
I look at this and I see maimed students.
PVC as a pressure vessel is very bad.
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Quote:
Originally Posted by Cory
Just because it hasn't failed doesn't mean it isn't horribly unsafe.
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+1
This is extremely sound advice!
We stopped using PVC as our pressure chamber on our T-Shirt cannon because of the risk potential. We too have never had a failure, but the risk just didn't make it wise to use PVC.
We switched to ABS. It's cheap, easily available, easy to machine and has a failure mode that is safe. ABS will blister out, and then the blister "herniates". No explosion, no shards, no injury. Additionally, we have also never had a failure with ABS.
So, there really is no reason to use PVC when ABS will do the same job and not have the risk of injury.
__________________
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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It'll take some engineering, but you would have yourself something revoloutionary. Keep innovating! - Greg Perkins [more] 
01-02-2014, 11:26
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