If oriented correctly, all parts can be printed without supports.
Assembly
Assembly is the same as the original Twist Lock Trick Box. Watch this v...ideo for the complete process.
Make sure to pre-tension the spring by one gear tooth
This will assure that the latches have a strong hold on the base. This is also necessary for the alignment of some toppers.
Make sure to glue the spring and topper
If you do not fully secure these parts, the mechanism may become detached while in a locked state. I recommend using either super glue or 3D Gloop!, but hot glue can work as well.