Update: 07/02/2021 Added a few variants on the base including a wall to stop the dice rolling under the stairs and a longer (20mm) version of the base so that there's a bit more room inside the box.

Update: 27/01/2021 I've uploaded an STL and STP file of a blank lid incase anyone wants to get creative and add their own patterns.

So this is my latest 3D printed dice box/ tower design. The box itself is 110x120x30mm so relatively compact but plenty big enough to fit the dice tower mechanism and a full set off dice (maybe even a miniature if the base isn’t bigger than 25mm square). The dice tower itself stands at 100mm tall and is made up of 20 individual step pieces that rotate around a centre spindle. The design is purely 3D printed with no need to glue any components together (although some of the retaining pins would benefit from a bit of glue). The push-fit tolerances are all a little tight, so it took some sanding to get everything sliding and spinning correctly.

This is still a work in progress so some of the tolerances are a little tight (may need sanding) and the tower has no mechanism to lock when it is full up. I may get around to fixing these in the future. To make it you'll need one of each part and then 17 of the standard step. Assembly should be pretty straight forward, just look at the names of the files if anything is confusing. I'd also recommend support on all of the parts (there's only a few that really need it) and a raft for the pins and top column.

Good luck printing and any feedback from makes would be appreciated!