Have a look at this tiny QuadCopter, 15g and just a board. Unfortunately it can't fly at the moment due to filtering problems...http://mikrokopter.de/forum/topic-13092.html

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Comment by Jianguo Zhao on January 4, 2010 at 10:16am
Comment by Alex on January 4, 2010 at 10:50am
If minimizing weight is the primary goal, 3 rotor would be even better.
Comment by Giles Barton-Owen on January 4, 2010 at 10:53am
Surely it requires either a servo or some heading hold kit? Also on average dosent run one of thhe motors far hotter?
Comment by Overwatch on January 4, 2010 at 11:08am
Alex, with three rotors you'd need to add a 1 DOF rotary joint with a servo... not sure if that would be lighter than just using 4 rotors on a flat board.
Comment by Varga András on January 4, 2010 at 11:08am
What I see the most amazing is how simple its production is. Just manufacture the PCB board and mount 4 motors. Thousands of these can be produced by a small company within a day.
Comment by Giles Barton-Owen on January 4, 2010 at 11:11am
I know, and a one piece system is so light and easy, no wiring problems.
Comment by Giles Barton-Owen on January 4, 2010 at 11:11am
Problem is it's so light that the control system will have to be knife edge otherwise it will flip...
Comment by Jack Crossfire on January 4, 2010 at 11:16am
Who started selling counter rotating 2" propellers? Those brushed motors wear out fast.
Comment by Xander on January 4, 2010 at 11:39am
Wow, that thing is beautiful
Comment by Matt on January 5, 2010 at 2:12am
That circuit board looks amazing! I like the way that there are minimal individual parts and assembly consists of inserting and soldering the motors. These could be made quite affordable. Another thing that I like is that the parts are such high quality, none of that cheap stuff. I can't wait to see a video.


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