ER25 Collet Holder/Box - Modular

A dovetailed modular ER-25 collet holder. Ultimately, I want to add a lid to make it a box as well as just use it for organizing the collets on my workbench.

I wanted to print the box in the derivative tag but I couldn't fit the ER25 sized version on the bed of the Makerbot. So, I modularized it...