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Sinew Cord: Two Plies of Sinew Reverse-Wrapped
Sinew is extremely strong, holds its own natural glue and shrinks as it dries. Circumpolar peoples used it as their only cordage. Twist wetted sinew threads into two plies and wrap them round each other the opposite way, so the twists lock into a cord.
The picture: string made from whale sinew in Tierra del Fuego, collected in the late 19th century.
初学者
Two hours
说明
1
1
Wet the sinew
Wet the sinew
Soak the sinew threads in water for a few minutes until soft. Split them into two equal bundles, staggering the ends so the joins do not line up.
此步骤所需材料：
兽筋线6 m
水0.25 升所需工具：
玻璃罐
直尺2
2
Reverse-wrap
Reverse-wrap
Hold the two bundles together at one end. Twist the far bundle away from you, then lay it over the near one toward you. Repeat, so each ply is twisted one way and the pair wraps the other way.
所需工具：
直尺3
3
Splice in
Splice in
When a ply runs short, lay a new wet thread along its end and keep twisting; the sinew's own glue holds it as it dries.
所需工具：
玻璃罐4
4
Dry and trim
Dry and trim
Stretch the cord gently and let it dry; it shrinks and tightens. Trim the loose ends.
所需工具：
燧石刀5
5
Thread needed
Thread needed
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