Build an Analog Electricity Usage Meter

Step 3 Build the Case

The dimensions used to build this case were 10 1/4" X 12". I decided to use 12" across the top to accommodate the width of the three gauges.
The sides of the box are a simple design with two 10 1/4" rails into which are cut dados to fit the longer rails. Those rails were cut specifically to fit. The dados and rails were cut using a table saw, however, a sharp hand saw, a good layout, and careful cutting will also do the trick.
Once the pieces are cut dry clamping is the best way to check how well it fits together before gluing.
The box dimensions you use should be designed to accommodate the gauges, wiring, switches, and outlets.
Once the glue up is complete a dado in the bottom will allow a piece of plywood to sit flush. If you do not have access to a router the plywood can be tacked directly to the bottom and the edges can be rounded with sandpaper or a file.
The final step in the construction of the base is to cut a dado where the electric cord can fit through the back. I recommend waiting until the assembly of the panel is complete so you know where the cord will be.