My wife wanted a hanging box for the nappy change station that we built using 12mm plywood. All the other caddys were either too small or the hanging components didn't fit.

So I designed this based on the 12mm ply wood for the A1 Mini. The hangers at the back are removable and they just slot in and out. 

The box dimension is L 180mm x W 130mm x H 80mm. The hang is 180mm high.

No supports needed for the box. Minor supports (0.6g) for the hangers.

Please tell me how it goes if you print it.