This is a box to hold 11 standard sized (16mm) roleplaying dice. For when a 7 dice polyset just isn't enough, this lets you add duplicates of the dice you use the most. I personally recommend one extra d20 and three extra d6s.

The spaces are as small as possible in order to accomodate small printers. That means the d4 doesn't sit flat, but I find it's easier to pick up this way. If you don't like that, or if your dice are a little larger or a bit irregular, try scaling up the X and Y axes.

I've included the FCStd file (FreeCAD) for the plain lid, in case anybody wants to add their own logo or symbol.

EDIT: Also uploaded the FCStd for the base so that it is easier for people to remix.