air cannon idea

[tape fist]

this is my air cannon im going to make tomorrow. http://img243.imageshack.us/img243/4259/82349848zh3.png
do you see any thing that will go wrong with this design if you do can you please tell me?
thanks

[tghhs]

yeah it'll work, but don't know if it's worth putting on a scope if ur using a ball valve, sprinkler would work better if u want it 'more' accurate.

[inonickname]

Don't bother putting a laser/scope on there if your using a ballvalve (unless it's just for looks, of course.) because while you try to open the valve quickly you will disrupt your aim, making a scope/laser ineffective.

You could fix this by using a different valve or by springloading the bv.

Welcome to spudfiles

[SpudsMcGee]

Its a waste of time and money if you use the ball valve, like inonickname said it will mess up your aim when you open it.

Welcome to SpudFiles.

[SP00K]

Nope, looks fine. But you'd probably want a larger chamber and to make a sprinkler valve.

[Lentamentalisk]

several major issues. First of all, the silencer will have no effect what so ever. For a suppressor to do anything on a pneumatic, it must have a large volume, on the order of the volume of the chamber, preferably much larger.
Second, using a ball valve for the main valve will work, but you will not get particularly great performance. Try your hand at a modded sprinkler valve