A mini quiet fidget with a lot of tactile feedback in its small frame.

This is a remix of a 3DPrinty shutter fidget from Printables:
Shutter Fidget by 3D Printy | Download free STL model | Printables.com

My changes include:

• Added witdth - additional 5mm to fit larger fingers
• Added new belt style - pyramid
• optimized edges for smoother operation.

Printing

• All parts can be printed without supports.
• Add a brim if your printer has any difficulty with curling around sharp corners.

Assembly

• Wrap the shutter around the bottom case
• Optional: wrap a rubber band around the shutter to hold it in place
• Optional: add a few drops of silicone oil behind the shutter
• Align the top case with the shutter and bottom case
• Press firmly until the cases click together
• Optional: Use a clamp if cases don't click easily