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Electro-Graf

Step 8Make mods to electronics

Make mods to electronics
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Every electronic component needs to interface with the wall in two ways: electrically and mechanically.

Mechanical

Components like wire, LEDs and circuit boards can be taped, epoxied or screwed into the wall. Another option is to create a metallic surface on the wall (using magnet paint) and then modify the electronic components by adding rare-earth magnets. The magnet mod-ed components then adhere to the section of the wall where the magnet paint has been applied. Wire can be attached directly to magnets using conductive epoxy. Be patient with conductive epoxy and don't speed-up the curing process with heat. Attaching magnets to LEDs is a bit more difficult.

Attaching magnets to LEDs

I have developed a simple technique for attaching magnets to LEDs using old, used exacto knives. First, I created a LED holder on the laser cutter. You can also use a little mound of clay, putty or, I suppose, chewing gum. While holding the LED with its leads pointed up, mix a small batch of epoxy. Place the magnet on the end of a used exacto blade, about 1/4-inch from the tip (see picture). It will adhere magnetically. Put a dot of epoxy on the magnet and on the LED. Now, with the magnet facing down, let the tip of the blade slide between the leads of the led until the magnet is laying face down on the underside of the LED. You can adjust the distance between LED leads and the magnet by moving the magnet further away from the tip of the blade. THE MAGNET SHOULD NOT TOUCH THE LED LEADS. This will create a short since the magnet is conductive. Once one has dried you can repeat the process with a second magnet on the opposite side of the leads. The first magnet will help keep the blade in place for the second magnet. Confused?? Just check out the flicks and give it a try.

Electrical

You can connect wires and LEDs to the wall to make electrical connections in many of the same ways. To attach wire to the wall just bond the twisted strand of wire to a magnet using conductive epoxy. Then connect the magnet to a wall that has both magnet and conductive paint applied. The circuit will connect across the conductive magnet. To modify LED to make an electrical connection you can simply bend the LED leads so that they run parallel with the underside of the LED. When the magnet mod-ed LED is adhered to the wall, the bent leads are pre-loaded via magnetic attraction onto the conductive traces. This way you can remove and re-configure the LEDs on the wall at a number of locations by design. Look at the flicks for more details on the process.
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Author:Q-Branch
I made weapons for the British government for over thirty-five years. Now that I am retired, I have gotten involved in outfitting graffiti writers and street artists with state-of-the-art technology. ...
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