What is a rotary attachment for?

It spins cylindrical work under the beam so artwork wraps around the curve — tumblers, glasses, mugs, rolling pins, even rings on a chuck-style unit. One axis of the machine drives the rotation instead of moving the head.

For sellers it is usually the first accessory that directly unlocks revenue: powder-coated tumblers are one of the most reliable product lines in the hobby, and they are impossible without one.