Doctor Who: Time of the Daleks dice holder

This is a simple dice holder that I designed as a first dip into modelling for 3D printing and parametric CAD.

The tray is designed to lay on top of the TARDIS console card. It has an additional space (V4 moves it to the right of the regular spaces) for the TARDIS die, in case you want to use it. It slides around a bit when you take dice at first, but you get used to it after a bit.

To allow for printing in typical 20x20cm beds, the tray is split into four pieces that you assemble later. T