Friday, August 31, 2012

Remote Controlled Water Squirt Gun

It's summer! It's hot and this will help you cooling down!

Read more for the whole story including videos and pictures!

Here's the video about the whole project:

It all started with this little 6€ automobile water pump I bought on Amazon.

I attached the pump to an empty bottle and mounted both on a piece of wood. Then the whole Idea of a remote controlled water gun came up and I designed this out of aluminum parts:

As remote control I used an old 4 channel remote setup.
It uses two servos: one modded for continuous rotation (explained in another post) and the other not modded or changed at all. 
Aiming was pretty poor so I decided I needed some First-Person-Camera mounted on the water gun with live streaming to a display on the remote control.
This is a 2.4 Ghz wireless receiver for my wireless video cam.
It has a 12 Volt rechargable battery attached to it.
The screen I used is a simple rear-view car monitor which cost 20€ on Amazon.
After attaching both to the remote this is what it looks like:

Here's a little 3D view of the remote:
And here are some pictures of the masterpiece:
For aiming purposes I added a little laser diode aligned with the water pump:
And here's the demonstration footage:


  1. I think the stream may be too strong to be used as an actual flamethrower, do you think so? I think the stream must be more vaporized in order for a flame to propogate. That is just my opinion...I am not an engineer. :-)
    Also, would it be possible to use compressed natural gas as a flame source? But I imagine that would require many changes to the basic structure including replacing the water pump with some sort of valve and adding a pilot flame source to the nozzle.


  2. Hello, I have a question:

    How did you make the water pump, wheels, camera, and servo motors be controlled by the remote control? Please reply ASAP. Thanks!

    1. I used a standard 3channel RC receiver one channel for turning the servo, one servo for tilting, one channel connected to a motor driver which runs the pump! The camera is not connected to anything but its own receiver!

    2. Thanks for your reply! Can you please recommend a cheap receiver/transmitter? Thanks!


      Something like this maybe?

  3. what was in the green bootle you used as fuel for the flamethrower

  4. What about using a laser for igniting the fuel?

  5. I think this is awesome Iwas wondering if you if you could send me a parts list and instructions on how yo get it to work properly thank you for you creativity

  6. I believe this really is amazing Iwas asking yourself should you should you might deliver me personally the components checklist as well as directions how years old have it to operate correctly thanks for you personally creativeness.

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