You don’t need any of that chemical nonsense to just have fun, though, as this compressed air cannon from [OtisLiu153 ... Off-the-shelf couplings are used to piece everything together, with ...

Is it possible to 3D print a tank for compressed air? 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 ...