In a small box, like a gear in the clock mechanism, to be able to accommodate all the spools of thread. The easiest option “niccotine” — plywood base to drive in a staggered cloves of suitable length and thickness: they will serve as axles for reels. Now cover the base cover, cut a slit in it and print them through the ends of the thread. Pull any, pull how much and conveniently and accurately.
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