I think, this is the smallest possible automated dolly for a GoPro you can build.
Also its a very simple one.
The main component is a PCB because i thought about mounting electronic components on it directly.
Now that its finished, i can’t see enough space for that, so i might as well build it of aluminium.
As i didn’t have any belts etc i used some parts of a TREX450 to get the ratio of the servo down to 20 degrees.