Tell us about yourself!
The main picture you show of the dynamic disc, seems to show a ring that is not part of the current cut files.It is the ring on the right side of the assembled disc. It is solid with only a notch. Was that from a previous version?
Micro LASER Show with a CD Lens Mechanism
Laser Voice Visualizer
Pop-pop or put-put steamboat made easy for children
Simple Homopolar Electric Motor
Re-create Heron's fountain from water bottles
Distill Hydrogen Peroxide
Build a World's Smallest Electronic Shocker!
Things to do with a old computer
How to make artificial fishing bait for little to no $
How to Make Vortex Cannons
Create a hardware store jet engine!
Head tracking with a webcam
Soda Can Hydrogen Generator for Alternative Energy