The Nimble rack is built from 3d printed parts. There are some standard components, as well as custom trays for all the networking devices that you are using.
This is a list of needed parts (csv)
As a first step you need to 3d print the needed parts
Assembly starts with the frame:
You then add the trays and the individual components to the frame:
Installing the components in trays
The assembly is finished by doing the cabling and adding the battery