Model rocketry is an incredibly fun hobby, and can find much synergy with the world of Arduino and electronics. One example of this is by Chris Hall who has created a model rocket launcher based around the Arduino platform, and made it much more interesting than a simple "go" button.
His launch device includes a key switch for safety, a nifty countdown timer with sound effects and the delay can easily be adjusted with a knob. Finally along with the 3D-printed rockets, Chris printed the enclosure for the launch unit - which is demonstrated below:
And for some fun, we can see the rockets being launched in the following video:
You can find the Arduino sketches, schematics and 3D design files for the enclosure in the project's Instructable page. And for more, we're on facebook, Google+, and twitter - so follow us for news and product updates as well.