Here is the Fritzing file I created for the project: http://www.mediafire.com/?n4wcun4zxn40oxz
Note that I added a 100nf capacitor across the incoming power since my original design and have reflected that in the file. I also reduced the current limiting resistors from 82? to 68? to increase brightness a little. There was also an issue with one of my traces being routed on the wrong layer requiring me to cut it and use a jumper on the underside. That was also corrected in the file.
If you build this using my PCB design, you might want to increase the hole size for where the anodes attach to the PCB. This will make it easier to put attach the cube to the PCB. I've built 4 of these so far and have managed with needle nose pliers and patience though.
If you want one of my circuit boards, I still have a few and can sell you one for $12 shipped in the US. Or if you want a parts kit with it , I can do that for $30 shipped in the US. This would include:
- 130 blue 3mm leds
- 30 transistors (2N3904 or 2N4401 depending on what I have on hand)
- 31-1k? 1% resistors
- 5-68? 1% resistors
- preprogrammed and tested ATMega328
- 16MHz crystal
- 2-22pF capacitors
- 1-100nF capacitor
- power connector
- two sided solder masked PCB