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source: www.nintendo.com

 

Directions for making an IR LED Marker

 

You will need a rudimentary knowledge of soldering to complete this project.

Parts you will need:

1 x dry erase marker
1 x "N" size battery, Radio Shack part# 23-023
1 x "N" size battery harness, Radio Shack part# 270-405
1 x High-Output IR LED, Radio Shack part# 276-143
1 x SPST momentary switch (normally open), Radio Shack part# 275-1571

Tools you will need:

1 x soldering iron and some solder, the thinner the better
1 x thin needle nose pliers
1 x drill with bits
1 x diagonal cut pliers

 

Fabrication:

 

·         Remove the plug on the end of the dry erase marker

·         Take out ink sponge and tip of marker

·         Drill hole in side of marker where momentary switch will protrude

·         Solder LED, battery cage and momentary switch into a loop

irloop.png

·         Slide the loop into the marker body with the LED leading

·         Use thin needle nose pliers to grab the switch and pull it into position