Things You'll Need
Instructions
Put a sheet of newspaper on a table. Pull the back end of the dry-erase pen marker off of the front end with the pliers.
Remove the tip from the front end of the dry-erase pen marker with the pliers. Dispose of the back end in the trash.
Wrap a paper towel around the tip of a flat-edged screwdriver. Insert the tip of the flat-edged screwdriver into the front end of the dry-erase pen marker.
Rotate the flat-edged screwdriver to wipe the inside of the dry-erase pen marker. Remove the flat-edged screwdriver.
Hold the dry-erase pen marker in your right hand with the front end facing forward. Drill a hole in the side of the dry-erase pen marker where your thumb falls naturally with the portable drill.
Grind the drill bit around the inside of the hole. Remove the portable drill from the dry-erase pen marker.
Scuff the red LED̵7;s bulb with the sandpaper.
Remove the nut and washer and rubber nub from the bottom of the LED module with your fingers.
Insert the pins at the back end of the red LED into the front end of the LED module.
Put the rubber nub onto the back end of the LED module so that the LED pins are being held inside.
Cut an eight-inch length and a four-inch length electric wire with the wire cutters. Strip a half-inch of insulation off each end of both of the electric wires with the wire strippers.
Strip a half-inch of insulation off each end of the two electric wires attached to the N battery holder with the wire strippers.
Solder one end of the loose electric wire to the longer of the two pins at the back end of the red LED. Let the solder cool for a minute.
Solder one end of the other loose electric wire to the longer of the two pins at the back end of the red LED. Let the solder cool for a minute.
Push the two wires through the front end of the dry-erase pen marker. Push the LED module into the front end of the dry-erase pen marker.
Crimp the front end of the dry-erase pen marker with the pliers to hold the LED module in position in the front end.
Pull the four-inch electric wire out of the hole in the side of the dry-erase pen marker. Solder the end of the four-inch electric wire to one of the two contacts on the push-button switch. Let the solder cool for a minute.
Push one of the two wires from the N battery holder into the back end of the dry-erase pen marker. Pull the wire from the N battery holder out of the hole in the side of the dry-erase pen marker.
Solder the end of the wire from the N battery holder to the other contact on the push- button switch. Let the solder cool for a minute.
Wrap the end of the eight-inch wire attached to the red LED to the other wire attached to the N battery hold. Apply solder to the two wires to hold them together. Let the solder cool for a minute.
Put a N battery into the N battery holder. Push the N battery holder into the back of the dry-erase pen marker. Close the end with a piece of duct tape.
Apply bonding glue to the hole in the side of the dry-erase pen marker. Push the bottom of the push-button into the hole. Let the bonding glue set for a day.