Adjustable simple box with lid

****The dimensions generated by the generator are internal dimensions. External dimensions (length and width) need to be increased by 12mm, and height by 6mm**** V1.1 Update: The overlap between the lower and upper covers has been shortened by 8mm to prevent excessive clamping that could prevent the covers from opening, but the overall internal height remains consistent with the generator's output value. This is a simple box with a lid. The adjustable parameters are: 1. Height (add 6mm to external dimensions)2. Width (add 12mm to external dimensions)3. Length (add 12mm to external dimensions) Boost Me