![]() The tank for this robot would only be used up to about 4 bar (400kPa), and after a few quick calculations, the team discovered the wall thickness – even in a pressure vessel with corners – would be pretty low. Is it possible to 3D print a tank for compressed air? Since just about everything else on this robot is 3D printed, they asked the obvious question. That means compressed air, and that means a pressure vessel. A group of students in Renens, Switzerland are building autonomous robots for the Eurobot competition, and this year’s robot uses pneumatics. Compressed air stored in a PVC pipe is never a proximal cause in any accident, and the OSHA’s Fatality and Catastrophe Investigation Summaries bear this out there was no industrial or occupational accident recorded in these summaries where a pressure vessel made out of PVC was the cause of any injury or death.Īlthough PVC pipe can be a perfectly safe, effective, and cheap pressure vessel for hobby applications, it’s not always the best choice. It’s safe, too: while there are are reports of PVC pipe being the cause of accidents, these accidents include a black powder potato gun, and welding too close to a PVC pipe containing compressed air. Using PVC pipe as a pressure vessel for compressed air can be a fun and enjoyable hobby.
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