I now have my 3D printed water rocket parachute system working.

3D Printing
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I now have my 3D printed water rocket parachute system working. 4 deployments from 4 flights.
http://www.youtube.com/watch?v=r16PdFdaIAM

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How do you charge it? We used to build similar things in the machine shop I used to work in. Less refined though. More akin to a 20oz bottle charged with 125 psi and some water. Would dent a steel tub though!