With the Instructables some files were not provided.

Arduino Pro Micro case, Spacers, Divider, Sort Cup, and updated Center Pin.
Requires 5mm Heat press inserts(Qty 14)

I created the jar and the divider to be separate to allow for tuning of the divider location.
The center pin was not a press fit so I added a heat set insert to allow a 3mm bolt to secure the bottom disk to the center pin.

With no case provided I made one to house a Pro Micro and the Servo board with mount points added to the spacers needed to complete the design.

Enjoy.