SummarySimple Solidworks 2014 model that you can Adjust the inside Volume and Wall thicknesses. Check out this Video for more info: http://youtu.be/jgnN0x6gR8U *If you need and special size case and you do not have solidworks, please add a comment of the size of box you need and what it will be used for.*** Instructions1)Adjust size of box in solidworks 2) Export file to STL 3) Print File 4) thread 1.75mm filament for hinge, leave 10mm excess on both sides 5) Use a heat gun or lighter to heat up filament 6) Press filament with a knife to the side of the box to fuse together 7) Upload you design for other people to use ;-)