Wire Untwister

thingiverse

This handy device unravels jumbled LAN cables, restoring them to their original single-strand wires. Just five custom parts require 3D printing, but you'll need to scavenge for several metal components. The 5mm metal rod can often be salvaged from discarded laser printers. Meanwhile, the remaining metal pieces can be fabricated by hand. The real challenge lies in sourcing a spring with the perfect balance of strength and flexibility.