Lego rope winding machine for making model boat ropes
We needed to make some more ropes for a model of HMS Victory which Andrew is building and he needed some small ropes for the rigging and port hole covers. He made this rope winding machine out of Lego and using two of the Lego mindstorm motors he was able to connect the motors together so one acts as a generator and turns the opposite end of the machine to twist the strands together.
This video shows the machine winding small copper strands to make a small copper rope.