Download the .scad file and open it with OpenSCAD
Export to DXF or STL
Input your X, Y, Z, and material thickness values, and you're set!
You can toggle 3d view, laser vs 3d print, toggle a handle, toggle bolts, and way more! Check out the .scad file to start having fun
If you want to see any other options, let me know.
If you use this script, please post photos :)