Power Supply Box

Turn an old PC power supply to bench power supply withoud modifying it
-Molex 20-Pin Female
-Banana sockts
-LED
-ON OFF
As you may know, the molex connectors for PC power supply is "normalized" , you will find the same pinout with the same colors.
I pickes banana sockets with the same colors as the voltages available :

Black for ground
Red for +5V
Green for 3.3V
Yellow for +12V
Bleu for -12V

The ON/OFF connects the green wire to ground
The Led is connected between Ground and gray wire (Power ON signal)

You can add other features like USB Socket...That's why I'm also posting the Solidworks (2013) files.