Originally Posted by clyde
You could do it with an airsoft gun but I think the switch is mechanical meaning the button is designed to push open a shrader valve. But there may be electronic ones, i haven't done the research.
If you're using an airsoft gun, the switch would open the fluid cartridge leaving the gas cartridge closed (according to what you described). UNLESS you have the gas cartridge open when its connected to the fluid cartridge. OR you could have an electronic switch that opens both at the same time.
If your dad has knowledge on this stuff that would be in my opinion a cool project to with your dad.
Yea, I discussed it with him, maybe we'll get started when it gets colder. And yes, I have an electronic machine airsoft gun. One more question, if you don't mind: would I just take the mechanics out and have at it, or do I have to modify it?