Wouldn't it be cool if...?

[Brak]

is there anyone with technical knowledge that can help me make this work? ive thought and the trap door would be too hard, now im thinking along the lines of 2 seperate operations, one with a bolt actuated by a ram, and the other using pressure to shoot the ball, but im pretty sure thats been done

[Vegeta]

Brak,

There are many many people how have spent much time and money on this subject.

Take the Tinker's Guild for example. Many people there have technical knowledge on varying subjects of hte field from fluid mechanics to pnematic operations. Those guys along with many otehrs try and conjure up things every free moment they get, I know I do. What you are trying to do has already been thought of many, many times.If you, with no technical knowledge as you admit, think you have this 'idea' and can make it work, then there is no reason why those people who do have college degrees in some of the areas, havent thought of the idea and tried it already.

Basically what I am saying is leave it to the people who know what they are doing instead of trying to do it yourself.

[Rex Carnage]

I tried to make a marker using a solenoid valve in the past. The marker worked but velocity was maxed at about 150 FPS. This is due to the flow (Cv rating) of the solenoid valve you use. (I was using a valve with a 120 PSI limit). Higher pressure will help, but now you run into problems with power consumption and finding a small enough valve with the pressure rating you desire (I haven't found it yet).
My other idea was to use a sliding air chamber which will be filled with a metered amount of pressurized air which is moved with a small solenoid (spring return). That may work, but I haven't tried it.

[Brak]

thats what i was thinking (vegeta, if your going to be such a jerk about it, dont bother replying.), i looked in clippard's catalog, and i found lots of rames and electronic valves, but all of them had a 120psi operating limit. where do i get higher pressure stuff like that?

[Redkey]

brak... The higher pressure stuff is out there you just have to look at more industrial level solenoids. However, they tend to be bigger than what will comfortably fit in a gun. Or if you want to go with much higher pressure you should look at hydraulic solenoids.

Vegeta... tsk tsk tsk... how many times have you seen something new and very cool, yet, very simple in design and thought... why didn't I think of that? Sometimes a new or different perspective on an old idea can breath new life into it.

Brak... what vegeta says is basically true... he could have been a bit more diplomatic about it though. Do your research before asking such a broad question. Perhaps if you could specify valve types, Cv factors, solenoid cycle times and power requirements when posing your question you would get a better response.