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Random slightly cool stuff you built but not worth its own thread, thread


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On 31/08/2021 at 18:10, ThePog said:

Me and a mate built this at Uni as part of the design stuff for a competition, we didn't actually win on the day due to the way the results were calculated but we went twice as far as any other entry and i think they still use it as an example...




Firstly, this is how it works, the basic setup. The red is a bit of 5mm polyurethane, all else is aluminium;



Then you pump air in which seals the barrel and fills the outer. Once it is pressurised you remove the pump, the valve actually has nothing in it so the removal acts as the trigger;



When the valve is removed the pressure on the polyurethane seals the valve/inlet and all the air rushes out, pushing whatever is in the barrel with it.



And as promised, a video of it in action and some fucking dodgy editing for lols.



I require pics of golf balls being fired through various materials plz. Car doors be good

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