By chance I read this patented method to control the rotor pitch without a swash plate usually a helicopter, by adding two parallel hinges on each blade root. When add torque to spin it the pitch would change so you can generate a vector force against the rotor axis:
This is a very useful control technique for control a miniature indoor drone, although it's patented (https://www.google.ch/patents/WO2014160526A3?cl=en). I still want to try it at home by building an ESC (hobby model naming for brushless motor controller).
A good starting place may be to buy a cheap TI FOC InstalSPIN controller demo board by hacking some code on: http://www.ti.com/tool/launchxl-f28027f with a driver board to drive a 2213 dji phantom motor.
The question is:
- I don't have any experience, would this board/code base could implement this function directly?
- If not, any starting point for other FOC controller will do
I want to make a ESC with 3 120 angled position input to tell the motor controller where I want the positive pitch to go.