SpudFiles

Just wanted to bounce an idea off of you guys; Could you pressurize the chamber of a pneumatic cannon with a pressure washer? You know, the ones you can buy to clean cars. I would use it by filling the chamber with water and then pressurizing it with the sprayer till the desired psi is reached.

The point of this would be to experiment with higher psi , most air compressors only go to 150psi any higher will cost you $$$$. However, even a cheap pressure washer, under $100 dollars will reach 1000 psi (I would never go that high).

I know that the drag of the volume of water would vary high as it moves through the cannon, also that the volume of the pressure washer would be low (under 3 gallons a minute). You would also need to be sure just what kind of pressure your cannon could take. I’m sure you can think of other problems.

Has anyone tried using a pressure washer for their cannons? Any insight would be helpful.

im not totally sure what your talking about, but if your thinking about pressurizing water and using it to power a projectile, its futile. liquids cannot be compressed and therefore they can't rapidly expand to propel something

However you could use the high pressure water to drive a piston down compressing air. But there are better ways of doing that, such as hydraulics.

Edit: Something else I just thought of, you could fill a chamber with as much air as possible then connect the water blaster to it, the water will ocupy space so the air will become more compressed. The problem is that you would get water in your chamber and the water blaster would probably blow the thing up (boom).

Small diameter or high schedule steel pipes are often rated in excess of 1000 psi, so it's not necessarily a deathtrap.

I sorta understand what you mean but ive never seen it done befor. In theroy it could work but then again it could fail. Dude be one of the first to adapt this and see how you go.

Bubba