These things are not very useful but look real fun to play with, I'm pretty handy and would like to have a go at building one, I'm just not sure how that's designed. A concave nozzle that spreads the stream of air? I've got a 3d printer so I could make some easy prototypes. If anyone has ideas let me know.
H2Odyssey Torid Pulse Air Ring Blaster Gun Dive Buddy Signal Device
H2Odyssey Torid Pulse Air Ring Blaster Gun Dive Buddy Signal Device
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