This is a gyroscope where you can push the Screw to make it spin infinitely. Even while it's running!
I reverse engineered a very old toy for this. I had always been wondering how it worked.

You need

1 Bottom
1 Top
1 Screw
1 Plate
1 Cover
7 Connectors (I like to print them in PETG)
The tool is optional and helps with Assembly.

Print settings

Standard. No supports.

Assembly

I made an Assembly Video: Watch the video

Technical Data

one Gyro takes roughly 4.5 hours to print and 90g of filament.
I used Protopastas Midnight and Marine dream Blue in the pictures.