My airsoft gun turrets

Posted: December 23, 2010 in Electronic, Mechanical, Microcontroller, Programming
Tags: , , , , , ,

It’s a bit stange but there are so much project I’m doing that I can’t get the time to post them online. I already wanted to post this for quite a long time so there it is…

A couple of months ago, in the summer I made a prototype with my cnc machine of a, sort of, centry gun turret. I milled them from a piece of plywood 4mm which is prefect for making little simplistic things like a turret. Since I already got this hand loaded airsoft toy gun I first made some drawings and milled them. The pan-tilt unit looks a bit the same as the robotic arm I made earlier, I used the drawings of the rotation platform and modified them so there could be a toy gun mounted on them. Here below is a picture of the toy gun and the shooting box thingy.

Here are the pictures of what I made for mounting the gun on the platform, the gun is clamped between the wooden parts. As you can see there is a big gear on the side, this gear makes the vertical movement. I got this and another gear from a toy rocket launcher which I demolished another time. It’s always good to keep parts from things you trow away, especially gears which belong together. Always handy.

Here’s how I connected the gun to the mounting plates. I used a bearing which is pressed into the wood so it would fit nicely and for mounting the gun in the bearing i used a countersunk screw. Below is the result of how its all put together.

Here is a little movie of the structure:

So I first wanted to make it load itself with a servo or something and make it shoot with a servo but this all didn’t work out because it was a bit too difficult comparing to a electric airsoft toy gun which is so much easier to use for this kind of things…

Then, a few months later I came with the idea of making another airsoft gun turret, but this time with fairly cheap electric gun from dealextreme. Since this gun was much bigger I needed to make another pan tilt unit. I’m not able to make such big parts at my cnc machine at home so I machined them on a cnc at my school. The pan tilt unit is just 2 times bigger so nothing fancy on the design.

As you can see the design is kind of the same, but I added some extras:

A LASER sight!🙂

Since this turret worked quite well I made a little PCB for it for controlling the toy gun, make it shoot with a relay. The PCB controls the trigger for shooting, there is a little Attiny13 which reads in the servo pulse and decides to power the relais (or not). I controlled the gun with a servo remote control, but the plan was to make a real centry airsoft turret with a camera and computer software. Since  the servos I used weren’t strong enough I was not able to make it rotate that well and it was not precise enough, so maybe I’ll put some stronger ones in when I feel like it. As you can see on the pictures below…. (o, I love to just post pictures to show you in stead of writing ;))

A bit of an important fact is that there is a noise filter around the servo cable. There was a lot of noise which made the signal crappy to read in so I added this filter from a USB cable and wrapped the cable trough it 2 times.

Of course you want to see a movie of the gun itself, shooting😉 I added a wireless mini camera on it and had some fun driving it all wireless from another room😉

Just some shooting:

So that was my adventure on making these airsoft gun turrets, I really enjoyed making them, I just like to make things! If you want to know something, ask me.

Here are there drawings of the two turrets

I hope you liked it too.

Comments
  1. Gary Scott says:

    Great job on the turret! I’d be interested in the drawings since I have a CNC router that I built and I am always looking for fun projects like this one.

    • jjshortcut says:

      I uploaded the drawings for you in DXF format. If you like to make this thing, you might need to add some kind of a bearing in the rotation platform because it has some resistance. (That’s another reason why I needed the stronger servos).

  2. Axel says:

    Sei un grande!!! Bellissimo progetto, ne sto studiando uno da apllicare sopra un rc car….quanto pesa la torretta con la pistola?

    Grazie
    Alex

  3. Remote Controlled Toys UK…

    […]My airsoft gun turrets « J-J Shortcut's Blog[…]…

  4. Mark says:

    Hi, i am from the Netherlands. I like your blog very much! Cool projects to!
    I would like to know, de gears that u use, How many tooth does these gears have?
    And the link doesnt work, could you fix that please?

    Kind regards,

    Mark

    • jjshortcut says:

      Hi,
      Thanks, and I finally got time to fix the dead link, so now it’s updated. About the gears, I don’t know what gears I used back then, these came from another project..

  5. David says:

    Hi JJ,
    A similar idea just came to me after a weekend at the ranch. What capacity do this servos (6k, 15k etc)? I believe adding a couple gears might reduce stress on the servo while increasing torque and give it some precision.

    Im curious how you set up the trigger.
    Thanks, David

  6. Marc says:

    Hi – where can I purchase one of these?

  7. mikey says:

    Hi i cant open the drawings, is there any chance you can email me them? im doing this as a college project!! thanks

  8. Julian says:

    Could you re-upload your drawings? I’m really interested in your pan/tilt mechanism and would like to see it in more detail, if possible!

  9. Inder says:

    Could you upload the drawings pleasee
    thanks

  10. Suleyman says:

    Can you please reupload the drawings?

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s