Originally Posted by 2400RDR
If your multirotor has square arms, this will work well. One picture shows the gear on an arm of my wooden hex, and the other shows the simple jig I made to bend them (there are 3 on the hex). The shape is nothing special- I just eyeballed it.
The stock is 1/2" aluminum flats from HomeDepot or Lowes.
I think this is the next idea I am going to steal