Custom designed for another Printables member.  Internal dimension are 102x 78x 45 mm.
 

Print in your choice of material.  The gasket should be printed with a flexible material like TPU.

Assembly will require 2ea m3x15mm and m3x20mm socket head cap screws.

Don't overtighten the screws. They only serve as hinges, and only need to be threaded into the plastic until the bottom of the head contacts the plastic.