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Fire By Friction - Using a fire-kit made with stone tools Print E-mail
Written by Mark Whitcombe   
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Fire By Friction - Using a fire-kit made with stone tools
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Close-up of the Bow Hole.
firefrictionwhitcombe14.jpgI used a thin stone drill to bore this hole through the handle end of the bow. You can see that the twine is of several thicknesses. The thick part is the central section that goes around the spindle. It is strong enough to support my whole weight of 110 kg. It is made from two pieces of z-twist twine, each again z-twisted against the other, to give a smoother and more even piece of twine than could be made from just a normal two-strand piece of twine. Boring a hole through the bow means that I have more control over the twine when it is wrapped around the spindle.

The bow is a piece of sumac — nothing special, except that it’s what I consider the right length (approximately 80-100 cm), curvature, and stiffness.


Preparing the Cedar bark tinder.
firefrictionwhitcombe15.jpgThe most easily available material that I use for tinder is the inner bark of white cedar — the same tree that the wood for the hearth and spindle come from. Fresh cedar bark does not work at all for me. I have learned from experience that the cedar bark has to have been exposed to the elements for at least ten years. I pick off the woody outer bark, and then vigorously rub the inner bark between by hands until it’s the consistency of cotton batten.

Getting Good Smoke!
firefrictionwhitcombe16.jpgThe technique I use is based on that of Ernest Thompson Seton in Two Little Savages. I use a stiff bow and a very taught string, and considerable down-pressure from the socket on the spindle — a strength-based technique. It takes me about 15 to 20 seconds to produce a suitable ember. When there is thick smoke pouring out of the hole, and black powder around the bottom of the spindle, and the notch is filled, then it’s time for the next step of gently knocking out the raw ember!


The raw ember.
firefrictionwhitcombe17.jpgThere is just a curl of smoke from a dark-brown or black ember that’s about the size of three or four peas together. I put the edge of the tinder under the hearth board, and gently knock the raw ember out when it’s ready. I then wrap it in the tinder and blow gently at first, then increasingly hard as more smoke is produced.


The red eber!

firefrictionwhitcombe18.jpgWhen I get to this stage of being able to see a glowing red ember, I know I’ve got fire! At this point, I can actually relax — in many cases, just wrapping the ember up in the tinder and letting it sit will eventually produce flame. But if I keep blowing ...

Smoke and promises!
firefrictionwhitcombe19.jpgfirefrictionwhitcombe20.jpgA couple of good puffs, and then it’s flames! I still get an amazing feeling every time!!!


 

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thumb_firefrictionwhitcombe2.jpgThe whole kit took less than three hours to finally pull together — though that really overlooks by far the most time-consuming aspect, the preparation of materials. In fact, preparation has two components, actually. The first is the selection of materials. The second is the actual preparation.