EDIT: v8 Top Added 12/10/2015. 40x40 fan mount and vent holes to top cover. Use a 5v fan. Fan thickness up to 10mm or less should work.
This is a case for the Stratux ADS-B project. More info here: https://www.reddit.com/r/stratux
It fits a Raspberry Pi, GPS and 1 or 2 receivers. Would like specs on AHRS, add comments if you are in the know.
Case is built tough with 3mm walls. 3mm PETG clear filament was press fit after printing for LED lenses.
Has provisions for mounting, just drill on bottom and insert nuts in holders shown in base picture. Could support suction mounts or a mounting bracket.
Fan added, tested and works great.
.3mm Layer, 2 shells, 25% fill.
Use ABS slurry or Glue Stick for printing. Keep the BED as cool as you can for ABS -