Building a bigger quadcopter

[Psykopear]

Hi guys, it's my first topic here. I just received the nano, cause i'll try to use it for my thesis (i enveloped an algorithm of single anchor positioning) and i was wondering (i have no electronical skills) if it's possible, without too much hacking, to use the board on a bigger skeleton with bigger motors. My idea was to build a structure in light wood, mount on it the biggest motors the board can handle (so 15w), and use it in the same way of the nano, but having the board more protected. Do you think it's doable? With bigger motors, how bigger the payload will be?

[tobias]

We have played around a bit with bigger motors and it is possible to use. However there are some things to take care about. The battery for example has a protection circuit PCM which might kick in and disconnect the battery if the current gets to large. Also the higher currents seem to affect the radio communication but setting the communication to 2Mbit often works. Otherwise changing the motor PWM frequency also can help which has to be done at compile time of the firmware. The stabilization tuning might also have to be adjusted.

We have tested some 7x16 motors where we get 10-15g payload instead. 7x20 motors would allow even more.