First link, from one of the masters himself, Cornchip:http://forum.arcadecontrols.com/index.php?topic=62577.0
Cornchip used chains and sprockets but pulleys and belts should be along the same lines.
Hats off to Cornchip! A pioneer in this rotating business.
Another great project from another pioneer:http://forum.arcadecontrols.com/index.php?topic=59170.0
csa3d did a most excellent job of rotating his LCD with friction. Also he did an intense write up on the printer port, which I was too lazy to do.
Another master! KOZ319 inspired me to do my first project.
He also introduces the home made H drive, capable of driving the big motors, such as a windshield wiper.http://forum.arcadecontrols.com/index.php?topic=72638.0
And the project that looks good enough to take the show:http://forum.arcadecontrols.com/index.php?topic=75411.0
Weisshaupts The Ghost In The Machine.
I know there are more, and I will see if I can find them later.
The biggest drawback to the way the masters did it is the printer port. Even though a cheap PCI printer port card works, most people tend to shy away from it.
I started designing a special MRotateUSB, which uses a usb interface, just need to get off my lazy asbestos and finish it up.
Whatever you decide to do, rest assured you will have plenty of folks here more than willing to help.
And if you come up with a new way to do it, please share it.
I would like to see a contest to see who can do the rotating monitor jig the cheapest and simplest way.
Cheap= using readily available parts that cost nothing or very near to it.
Simple= easy to set up and easy to use.
Special challenge: use AC motor.