We switched out our original design as shown above for two rotating flat peaces that trap one marble in. The pltw marble sorter is one of several vex projects we built in our poe summer training class. The only problem is sometimes the marble sorter has a hard time dropping all of the marbles to get read and sorted.
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mix and match bathroom vanity cabinets
mila kunis jim beam poster
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mid century danish dining table and chairs
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mj vision lantern antique mirror with white quartz line
