Hobbies And Interests
Things You'll Need
Instructions
Cut a 1-inch-by-2-inch piece of cardboard using scissors. This is the base unit for the headlamp voltage controller.
Cut a strip of cardboard 1/2 inch wide by 2 1/2 inches long using scissors. Put the strip of card to one side for the moment.
Start 1/4 inch from the top of the rectangular piece of card and neatly wrap bare AWG 14 gauge wire around the outside of the cardboard. Ensure you leave a few inches protruding before you start winding the wire and wind it so the wire gradually goes down the cardboard until you get to 1/4 inch from the bottom.
Cut a little slit in the side of the cardboard 1/4 inch from the bottom and slide the wire into the slit so the wire is held in place using a small knife or scissors. Cut the wire by the slit and fold any that̵7;s protruding onto the underside of the cardboard. Cut another slit 1/4 inch from the top of the cardboard and slide the top wire into the slit to hold it in place but don̵7;t cut the few inches of wire that is loose; you need it protruding so you can connect it to the battery.
Get your 1/2 inch by 2 1/2 inch strip of cardboard in front of you. Push through a metal wing clip in the center of the cardboard and fold over the wings.
Cut a 3-inch strip of plastic coated AWG 14 wire using a knife. Remove 1/4 inch of plastic off the end using wire strippers. Wind the bare wire around the wings of the wing clip.
Place the strip of cardboard width ways onto the cardboard with the wire winding around. The flat smooth part of the metal wing clip needs to be facing the wire. Hold the cardboard strip in place using your fingers and then turn over both pieces of cardboard.
Wrap the two ends from the strip of cardboard around the main piece of cardboard until they overlap each other slightly. Glue the ends of the strip together, or use a strip of tape. The strip of cardboard is now around the wire winding and can slide up and down the wire. The wing clip touches the wire winding and the farther away the cardboard strip is from the top of the wire winding, the less voltage gets to the headlamps, so the lights dim. The closer the strip is to the top, the brighter the lamps glow meaning you can control the voltage to the headlamps.
Connect the wire from the top of the headlamp controller to the ̶0;+̶1; terminal on the battery. Connect the opposite end of the wire that̵7;s wrapped around the wing clip to the headlamps. Move the slider up and down to control the voltage.