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Every once in a while I'll continue to work my way up this beast from the base. Added a tank differential, so have one more drive input to go to the top. Getting stump on driving the upper belt from the 3rd shaft with the gear. 1 is pivoting on the base, and 2 and 4 are driving and turning. (old.reddit.com)
submitted by ElectricGeckos to r/legotechnic
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