2009 Halloween Egg - The Ninth Ring of Hell

Step 15 Let There Be Light!

With the egg assembled it is time to add the LED. I chose to use a blue LED since most people associate the color blue with being cold. So it is perfect for reinforcing the idea that Satan is imprisoned in ice.

This is a simple circuit using a 3 volt LED, a switch, and a battery holder installed in a plastic box.

The first step is to lay out where you want the components such as the battery holder and switch within the case. Next identify and mark the locations where the wires will exit the case and where the switch will be mounted. Tracing around the switch is the best way to get an accurate outline.

With the locations marked use a drill to make a hole for the wires to exit the case and to remove the majority of the material from where the switch will be mounted. Use a small file to remove the remainder to the material from the switch hole. Remove small amounts of material at a time to make a snug fit for the switch. Remove any excess material from around the holes with a utility knife.

Strip the ends of the wires then thread the wires of the switch into the box through the mounting hole. Place the battery holder in the box. Use the lid of the box to hold the black wire from the battery holder and the red wire from the switch in place. Twist the stripped ends together, coat it with flux, and then solder the connection. Then glue the switch and battery holder in place. Once the glue has dried pass the remaining wires out of the hole. Solder on more wire if needed.

In order to get the LED to fit on the underside of the egg either trim the leads or bend them. With this done solder the appropriate wire to the apporpriate lead on the LED. Then cover all the connections with electrical tape.