Setup the main plan onto the 1/8 in plywood and cut it out. Make sure you clamp it down nicely.
Square all the corners and edges so everything fits together properly and run through the dry run in the pdf instructions to make sure the pieces fit together correctly.
Cut 6 × 2.5″×2.4″ squares for the outside of the box. Cut the offset windows into the box as shown in the cnc cutting plan.
Cut out six 3/4″ × 1/2" spacers from the 1/4" plywood.