I was testing my Auto3DClippy with my Arduino, and I was having trouble getting it to work with only 5V. I experimented with 9V and 12V power supplies and found 12V to be most reliable. I designed a simple circuit that only requires a wall plug to 12V converter, a breadboard, and some duponts. This circuit will still let the Chameleon control the servo, but also provide the servo 12V of power. Side note: Be careful with the signal wire. My signal wire got disconnected and my servo horn rammed into the Auto3DClippy and broke the horn. Trying to get Amazon to exchange it now...
I hope this helps if anyone else was having issues with 5V.
EDIT: Tinkercad is reviewing this circuit diagram to make it public. For now here's a screenshot:
Ok... here's a video of the voltage upgrade for any servo. https://www.youtube.com/watch?v=zAZ3Hr47dWc In the description of the video are the Amazon links to all the parts.
Bill