Why a separate thread for this?
Because these few informative shots would be otherwise buried in another topic.
At least ten mails a day, how DOES this work?
Here's how the barrels on the Killbucket Miniguns all get their motion:
The Horror, the horror.
At least the bits I'm not using are recyclable.
The clutch housings are removed, but the springs and pressure plates are retained.
A completed drive, one of two for this project.
Drives installed.
YouTube - Super-Small Airsoft Minigun!
A 2" O-Ring serves as a drive belt.