Electronics > Projects, Designs, and Technical Stuff

kCube - LED cube design revisited

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tatus1969:
Long time ago, I wanted to make my own LED cube - mainly because I had an interesting idea of what to show on them. Sadly, I never started building it because of the huge amount of work that comes with soldering hundreds of LEDs together, bending each leg such that it can connect with the next, then adding even more wires to be able to create a multiplexing grid. Plus tons of logic, power switches and current sources to drive them all. And I wasn't even daring to dream of full color RGB...

Then came Worldsemi and made LED's smart.

I just started experimenting with some NeoPixel rings, when suddenly my old idea came back into my mind. But I didn't want to design yet another LED cube. My goals are:
- (almost) invisible power and signal wiring of 8x8x8 full RGB dimmable LED's
- easy to assemble (I estimate 2-4 hours - no soldering needed)
- lowest possible cost (full kit will proably around 150 .. 200€)
- open source hardware and software for your cool ideas (STM32 based, Bluetooth, USB?)
- ability to immerse the LED arrangement in de-ionized water to reduce refractions of inner transparent structures
- plus some new features that are related to my untold idea above  8)
 
That was two days ago, and the overall construction is finished and ordered. I have some first rendered pictures (can't wait how that will look in reality) and am eager to read your comments  :)









mikeselectricstuff:

--- Quote ---- (almost) invisible power and signal wiring of 8x8x8 full RGB dimmable LED's

--- End quote ---
So how exactly is that going to work then ?

ataradov:
Yes, if you actually plan to use NeoPixel strips, then you should add them to the model, and see how invisible they actually are.

tatus1969:
the layers will be made from transparent flex circuit board material, with WS2812B chips and some passives soldered directly onto them. NeoPixel strips are of course not suitable :-)

ataradov:

--- Quote from: tatus1969 on March 26, 2018, 10:22:37 pm ---the layers will be made from transparent flex circuit board material, with WS2812B chips and some passives soldered directly onto them. NeoPixel strips are of course not suitable :-)

--- End quote ---
Where are you going to manufacture that transparent flex? Also, how is no soldering needed? You plan to order PCBA as well? That can get pricey for a one-off.

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