Quadcopters / Drones / Helicopters / Rotary wings stuff > Electrics

QuadCopter - Build and Fly

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IceWind:
Hi,

I'll share here my latest project.
For sometime I wanted to build one of these and this summer I got the time to finish it.
I started by going to Quaduino, but quickly gave up as the electronic base of the project is a Arduino board that is quite cheap but the rest of the sensors and stuff is quite expensive.
So I found the following that combines simple gear and good results.
Link: http://www.rcgroups.com/forums/showthread.php?t=1143569

This one on the other hand requires a lot of soldering and testing but that
is not a bother if you like.

All the board layouts are available if you want to make one or you can get one already made one.
As here I don't quite have the space and tools to make them myself I got a already made.



Starting to solder the parts:




Finished board:


Gear:

EMAX FC-2822

These are the cheapest you can get but also the worse motors ever... but we can't ask much for $6 each.

Props:
2x 8x3.6 CW
2x 8x36 CCW

The choice of propellers is hard has not many brands make them CW and they are also hard to get.

ESC - 25A
I could have used much less Amp rated ones but I decided to go to something more stable and better in software.

LiPo 2200mah 30C
A bit short, but for now I can go shorter flight times.



Frame:
The frame was designed in partnership with a friend.
All designed in CAD it was later laser cut with strong ply, the total weight
of the wood parts is around 108g what is not too much.
Later it will have 4 square tube arms of 10x10x1mm.







Final look of all assembled:



Primeiro voo:


Video from the first flight:
[youtube]http://youtube.com/v/qQ5eN8Ee03k[/youtube]


On this one it wasn't properly setup, I'll post a more recent video were it it is was more stable and easy to fly.

Ron:
Hi Nando,

This is really interesting.
It's something that has been smouldering away at the back of my mind for quite a while.

But one silly question...
How do you know which is the front and which is the back? :?

Ron

IceWind:
Hi Ron,

Not silly at all.
In the photo and video that I posted before I wasn't using anything as reference for the front arm.
It was the first tests and I didn't intended to fly high or away so I saw no need for it.

Check this photo, I've been trying now with a bright orange ball in the back arm.


Still not perfect so I might paint the arms with bright colors as well.
finnally I'll be installing some bright colored leds that will make it look something like this and allow to fly it at night. :)

Ron:
Hey that's really cool.

I've been looking at a quad-copter for local aerial photography.
How stable do you think it will be, when you've got it set up, in winds?
Well breezes anyway  :lol:
I guess the giros should give it some decent stability.

Ron

IceWind:
That's my plan as well, if you check the last photos you'll see i attached a cheap gum cam to it to try.

I think it's pretty stable for such a cheap build.
The gyro sensors give some counter action to unexpected movements but not having extra sensors there is no position and altitude hold or auto level feature. But that may change in a near future. ;)

I've have several new videos, one is on board using a GoPro HD and you'll see how stable it is. I just need to edit and post them.

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