You'll need to go to the original storage system for the actual drawers.
Find the original storage system here: https://www.printables.com/model/988687-stackable-shelf-organizer-drawer-system
Find the Stackable Shelf Organizer here: https://www.printables.com/model/970400-stackable-shelf-organizer
The author remixed this model.
I really liked the storage system, but I wanted to have more of the smaller drawers, so I mirrored that side.
Update: Added a mirror of the other side too.