CD 143 Double threaded example (highlighted)

By Mike Csorbay; posted April 28, 2005

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Here is the [id=119266813; same example as before], but the two sets of spiraled threads are highlighted in different colors. You can imagine how each set wraps around the back of the insulator and comes to the front, dropping two rows on each complete turn. With the single threaded example, the thread is one continuous spiral.