Winding yarn in to a ball would seem to be a difficult task to do
mechancally. You'd have to change the location of the wrapping point
frequently to achieve a ball.
However, if you only need the yarn wound in to spools, that's a much
simpler task. Simply tension the yarn and run a motor to reel it in.
When the spool gets to one end or the other, it will usually reverse
You can only do so much with caulk, cardboard, and duct tape.
To email me directly, send a message to puckdropper (at) fastmail.fm
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