Modular Tube Storage Rack

Everyone who dabbles in electronics is familiar with the annoyance of storage boxes with compartments that don't seal up to the bottom of the box, right? Small parts like resistors just roll under the "walls" and get all mixed up. I wanted something to organize resistors in enclosed compartments. There are some cool sewing organizers, systems of complete boxes within a larger box, but those solutions are no fun -- they don't involve 3D printing.

The actual containers here are clear plastic