Requires the following to be printed:

• 1 - Start
• 1 - End
• 1 - Core
• 1 - Core Cap
• 1 - Core Bottom
• 1 - Core Top
• 4 - Middle

Requires 6  - 3mm magnets, pressed into the the start and end bins

Requires 1.75mm filament to attach the bins together. You can leave the ends long and use a soldering iron to melt the filament in place.