Get the Comgrow T500 3D Printer here: https://rb.gy/zm4t3 (*$100 off right now)
I've always wanted to build a marble clock and now I'm paying for the huge mistake I made. In this video I made the marble selector that distinguishes between white and black marbles and managed to get a number on the display. This is the second part of the build of what I thought was going to be a two part video but I won't be defeated so stay tuned for part 3 because I'm going to make this build work. (I was going to make it epic but now seems more feasible to make it work).

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