My box start from design and construction http://www.thingiverse.com/thing:8935 and is intended for Ramps 1.4 .
Is modified for electric fan 40 x 40 mm.
Further be on front side placed two holders for push - button cut - outs for hand fan control
and lighting operating Bad.
Bottom is designed to mounting to attach to 5/16" or M8 threaded rod.
Print out how from PLA, so from ABS.