Inspired by TRON, [lasttraveler] decided to try his hand at building a Balance Board — basically a giant joystick pad you can stand on to control.
Constructed of solid wood, the switches are actually very simple — he’s just using tin foil to make the contacts. By opening up the sacrificial keyboard, he’s taken the up/down/left/right keys and wired the contacts directly to the four tin foil pads. A recess in the bottom of the board allows the rest of the keyboard to remain intact — in case he ever wants to take it apart again. Or add new buttons!
Wooden crossbeams in the shape of an X allow the board to balance in the middle without touching any of the contacts — but as soon as you lean the connections are made and you’re off to the races!
Now strap on a VR headset and play some TRON! Though if you want even more accurate control you might want to pick up a cheap Wii balance board instead.