Grab both of your 3/4 inch walnut boards and glue them together to make a 12 × 12 inch board. Clamp them up and wait til the glue dries enough so that the pieces won’t separate during the carving.
I have never owned or even used a CNC router, so I will just asume how this step would take place. Place the board on your CNC router and make sure to center it correctly. Once everything is setup run the Easel file in order to create the piece.
Grab your 150 grit sandpaper and sand out the piece to leave it smooth.
Once the workpiece is sanded out, choose your finish of choice.
Finally everything i s finished and ready for the final step, the assembly. Grab your drill and your 3 screws, use the pre-routed pilot holes in order to fix the letters to the base.
Since I do not own a CNC machine, I can’t really make these projects using that process, so if you do choose to remake my projects please share the pictures of it.