This would be a fun hobby. I'd love to be able to make one with a camera that transmits imagery to the ground, either for observation or for piloting the copter.probably several hundred to a grand for something decent. like Mackie2k said there's a lot of freedom in every aspect of one.
I really want to build one and play around with autonomous navigation/video taking etc. but it looks like a very time consuming hobby.
How expensive is it to build a quad that can do 30-60 minutes of stable flight?
You are going to have a hard time finding one that does 30min + 10-15 is more realistic. Check out www.helifreak.com lots of info there for AP and multirotors.
I am pretty sure you can build a nice quad for FPV for around 1000-1500.
Cool videos RossMan. Maybe when I have more expendable income I'll get a sweet FPV quad.
I've been planning on building one for a long time. With arduino, I feel a few hundred dollars you can create your own. I kind of want to do it in vacuo, to see if I can actually do it.
The actual hardware is not too expensive: 4 PWM motors, a lipo battery, and an arduino controller with a wifi or RF adapter, 3 accelerometers, 3 rate gyros. If the design is small enough, the arduino board can serve as the power supply circuit.
Designing the structure is also not too hard. The material need not be exotic, balsa wood is fine. It has to be symmetric, probably some optimization regarding rotor length versus strut length. Longer strut length means better control of roll, but also greater bending moment.
The challenge (and the fun part) is developing a very stable feedback controller for different flight modes (i.e., hover, spin, translate, or even combinations thereof). Having a stable flight controller would make the thing idiot proof, WASD style, and that is what I want.
wow those are really cool. i live in sf, you could do a lot of really cool flights around here, but i doubt it would be legal to put one of those in the sky. what is the range of those? what happens when you lose battery life, does it just fall out of the air?
Great thread. Heads up guys: there is a new gopro 3 on the market thats up to 25% smaller and lighter.
There's a really good article on building your own in the latest 2600.