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Thanks, feedback like this really make my day and motivates me to make more projects :) I'm really glad I could inspire you. I actually wanted to produce these clocks ( with an CNC and a tool to make grooves this clock can be made way easier and faster) , but unfortunately I don't have the tools, recourses and experience needed to do that. And luckily people do not ask me about my balls all the time, although I did get a reputation as the guy with a huge load of ping-pong balls
I just placed the power supply on the ground. Im quite sure there would've been a power supply that would've fitted behind the clock since there is quite some space left. This was the first project I made that could not be powered from an usb port, and I decided to just go with a normal power supply to see how it works. I was worried that it might get to hot when placed behind the clock. Also, 10a might have been a little to much, but I'm not sure.
I'll try making a digital image of the connections. What problems do you have with electrical connections?, I might be able to help you if you could specify what is not working.
I understand your confusion, the LED strip is placed in an unusual way. I moved one of those images on the page, so it is better visible, to avoid confusion. If any other things remain unclear I'll happily answer any questions.
Sorry, forgot to add it, I tried adding it right now, but it does not show. I will place it on this page tomorrow
I entered it, I did not know about contests, thx for the tip :)
your right, the ping pong balls form horizontal rows, and the led's form vertical rows. each led is still after an individual ball, but it is not placed behind the center of it (added an image on step 8, instead of zig-zag lines, this clock uses straight lines, but it gives an idea on how the LEDs are placed). this, however, can not be seen from the front, since the ping pong balls diffuse the light enough to give the balls one colour. The code up there is indeed very simple) That code will just display the time, and change the colour of the digits slowly whilst doing so. I did not add other code since I'm actually still improving this build. I'd be happy to answer questions if you have any.
Ping Pong Ball LED ClockView Instructable »