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I started with the plastic top from some blank CDs
Divide the surface into quadrants. I used a lens hood that came with my lens to trace out the hole for the lens. Put about 10 LEDs per quadrant
Drill out the holes and cut out the middle
Paint it. Make sure you use a spray paint that works with a soft plastic
LEDs in all the holes
All the LEDs need to be soldered in parallel and not sequence. Working with a 9 volt battery i split the LEDs into groups of 3. Take the positive and ...
Should look something like this
Added a push button to turn it on/off
The hood from my lens is just epoxy'd into the center. Also added an inch of a chopstick with epoxy to the right side for stability when pressing the ...
The final product was a little too bright so i added a potentiometer to adjust brightness
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What kind of potentiometer did you use? Ohms?
There are three sets of LEDs. Each LED in each set is wired in Parallel, that is (+) to (+) and (-) to (-). Then each of the sets are wired to the next set (+) to (-) in series. The two remaining leads from the end two sets are wired to the battery. Thus, each set is only connected to one third of the 9V battery, or 3Volts.
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