Back in highschool chemistry we had these y fitting type things that drew a vacuum from the y part when water was run through the straight part. I was wondering if I got a plastic y fitting from the depot and ran a small air pump through the straight part would it be able to draw fumes from the y pa...

Is it that bbmg's like clouds and vortexs are inefficient or they just shoot so fast you need a large volume of air to shoot them for more than a few seconds? I am trying to decide whether I should build a launcher based on ant's hammer valve auto principle or try this adjustable detent system. I re...

Did anyone ever try this idea with the spring loaded detents? Would it work better with a cloud or vortex?

I am thoroughly confused by the autobreach design. I understand how this prototype works perfectly, but your newer design confuses me.