Instructables

Step 6: Firing Mechanism

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there are two ways to fire your gun you can use the electrical solenoid built into the valve or use the technique displayed by crispyjones

I will provide instructions for the electrical side
parts:
- 9V battery clip x3
- 9V battery x3
- shrink tubing
- wire
- switches, one that stays on and one that is momentary
Assembly:
- solder according to the diagram
- position the switches on the gun so that it is most comfortable for you
- use epoxy or glue to secure the buttons
 
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ftball9993 years ago
I am currently building a nerf gun using that sprinkler valve, I am assuming that I will need multiple batteries but what is the purpose of the two switches? Thanks,
hacker3455 (author)  ftball9993 years ago
the non-momentary switch acts as a safety, therefore if it is not in the on position, the gun cannot be fired
Ah, thanks. I will be adding a second switch to my gun for that!
Pizzapie5004 years ago
What if my sprinkler valve runs on AC?
hacker3455 (author)  Pizzapie5004 years ago
Have you tried applying a DC current to the valve? If you still don't hear the clicking sound of the solenoid, look online for a DC to AC circuit design, thats all I can really suggest. Or find a valve that runs on DC.
Thank You! It runs perfectly on DC. I will probably do this on my anti siphon valve. 5*