A small clicking toy to help you relieve your stress. 

It has a small window at the top so you can see the rotating gears inside. 

How to print:

• Orientate all parts flat on the bed (might need to rotate top cover). 
• Paint supports underneath the LEVER. 
• Activate the “Fill the voids with bridges” settings in Superslicer (Perimeters&Shell → Advanced → No perimeters on bridge areas)
• Print at 0.2 or 0.3 layer height, 4 shells, 4top/3down layers, 20% infill

Assembly:

• Start with bottom part
• Insert the clicking bracket (if it doesn't have contact with thumbwheel, OR if it is holding the thumbwheel too strong, use lighter to heat it up a bit and bend the arms)
• Put the thumbwheel inside
• Now place both cogs on top, so the gear teeth meet properly
• Insert the lever on the holding pin
• Add top cover
• Use 3x M3x10 screws and M3 nuts to secure the bottom and top case

I went to look inspiration at craiyon.com, by generating images for phrase “Mechanical gadget”, and I found one of the images cool. 

Then made a simple sketch on paper, tried to model that in blender, and 5 prototypes later I had a clicking fidget toy!

I also was inspired by the amazing Fidget Clicking Wheel 2.0.

Quick test of the earlier prototype: