Large kid treasure box

**Large kid's treasure box** (200x200x150 mm) with 12 x 12 mm bolts and nuts and a 19 mm wrench.

Kids can use it to store other toys or other treasure in secure way and have fun with the nuts. Wall thickness has been minimized to 1.8mm ( 3 x 0.6). Despite of it is sturdy enough to withstand a weight of a 3 years old girl standing on top of it.
Size was maximized easily to fit on Prusa MK2S printing bed.

All parts have been designed with coarser thread and bigger tolerances as regular mec