How to Balance a round fan-mounted mirror for spirographs
If you like homemade light shows, this is one hell of a way to do it.
AP Digital light shows you how you can hack a small fan into a special mirror used to create a poor man's PIC-based laser show. It's an experimental method of balancing a fan-mounted acrylic mirror for spirograph project.
A motor-mounted mirror is a critical part of a spirograph project, which greatly affects the final appearance of the whole device, which can be seen at Instructables.
This is a simple and reliable method to mount and balance acrylic mirrors in order to achieve smooth and quiet performance. Check out more details.