simple adjustable latched box

I designed a simple box which latches open and closed using Perinski's latch design from his tiered storage box design, which uses a 2mm diameter steel rod from bike spokes, and I've made it so that it is super easy to adjust the size of it within Fusion just by changing a few parameters.

Fusion is a very capable CAD design software which can be had for free for the basic version, and can be used to adjust the size of the box, just open the .f3d file that i provided, click the modify dropdown at the top, and click change parameters at the bottom of the list, there is where you will find the width, depth, and height of the box, just double click the expression value to change the size of the box and thats it, then just right click the top case and bottom case where the browser is on the left under bodies, and click save as mesh to save the design, and thats it.