Helical Gear Fidget Pen Cups
22 downloads · 3 years ago · This is a 2-4 cup model, designed to spin and drive the adjoining cup (think fidget spinning pen cup
This is a 2-4 cup model, designed to spin and drive the adjoining cup (think fidget spinning pen cups)!
Choose your desired number of helical gear cups and make sure the outside cups are the opposite of the inside.
Uses standard skateboard/fidget spinner bearings. (608 Shielded 8x22x7 Bearing)

















