The next step is to create the control panels that hold the joysticks and pushbuttons. We need three of them, each cut from the sturdier ½ inch MDF wood:
• The wide control panel is 17 inches by 5 ½ inches.
• The end control panels are 13 ½ inches by 5 ½ inches.
Note that each of these will “overhang” the edge of the casing a little. If you don't want to do this, cut the panels back to a height of 5 inches instead of 5.5 inches. If you don't like how tall the panels are (and my wife and I debated on this for some time, citing aesthetics vs. comfort), cut the housing pieces and the control panels to a width of 4 inches instead of 5 (with 4.5 inches on the control panels for overhang instead of 5.5 inches.)
Here is a close-up of the wider panel.