Twisting strands together
- I found this video of a jump rope twister, that shows the principles of twisting strands together, so they form a neat rope that does not unwind. I think the device is overly complicated and over priced. I made something very simple and cheap out of three bent cranks, made of hanger wire, that were turned, in unison, by a board with three holes.
"Red Hot Pepper Jump Rope Winder"
I think the idea could easily be extended to 4 or 5 strands, not just 3.