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Creating an 8x8x8 3D LED Cube: Testing the RGB LEDs

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Steve Manley
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Re: Brilliant!
Steve Manley   7/31/2014 11:50:39 AM
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@Max: I didn;t really understand what you were saying here until I watched your video, at which point I thought "Brilliant!" I'm really looking forward to reading your future blogs on this topic showing the techniques you used for straigntening the wire and the jigs you build to help in the assembly of this cube.

I have to agree; I could have stated this a little more clearly. For example, "I used the serrated edge from an offcut piece of Vero board as a comb to spread the led leads out."

Max The Magnificent
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Oh No -- not another project!
Max The Magnificent   7/31/2014 9:42:10 AM
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@Steve: As you know, your work on this has inspired me to build my own 8x8x8 cube (how could I live with a 4x4x4 cube knowing that you were cackling over an 8x8x8 beauty?)

Now, you are using regular RGB LEDs, which will involve lots of multiplexing and stuff. I've decided to go with the Adafruit NeoPixel versions of these devices. Each of these LEDs contains its own controller with current limiting resistors and three 8-bit PWM drivers (one per RGB channel).

I've already taken delivery of the LEDs -- I'm eagerly awaiting your future construction blogs to get ideas for the building of my own cube...

Just what I didn't need -- yet another project LOL

Max The Magnificent
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Brilliant!
Max The Magnificent   7/31/2014 9:36:10 AM
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@Steve: I used an off-cut piece of 0.1" Veroboard, spread the tips of the leads into the exposed slots of the serrated edge, and then slid the LED housing toward the Veroboard, thereby forcing the leads further apart.

I didn;t really understand what you were saying here until I watched your video, at which point I thought "Brilliant!" I'm really looking forward to reading your future blogs on this topic showing the techniques you used for straigntening the wire and the jigs you build to help in the assembly of this cube.

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