Quick Answer
Replace your bow drill spindle or bow when they show significant signs of wear, such as cracks, splinters, or excessive wear on the string's attachment points. This typically occurs after 50-100 uses, depending on the frequency and intensity of use.
Inspecting for Wear
When inspecting your bow drill spindle or bow, look for any visible signs of wear or damage. Check for cracks or splits in the wood, especially around the drill’s attachment point. If you notice any damage, it’s best to replace the spindle or bow immediately.
Replacing a Bow Drill Spindle
To replace a bow drill spindle, find a suitable replacement material, such as a straight-grained wooden dowel. Cut the dowel to the correct length, typically around 20-25 inches. Use a sharp knife or saw to remove any rough edges or splinters. Sand the new spindle to create a smooth surface for the drill to rotate.
Replacing a Bow Drill Bow
To replace a bow drill bow, find a suitable replacement material, such as a flexible branch or a piece of rawhide. The bow should be around 1-2 inches wide and 40-50 inches long. Make sure the bow is flexible enough to bend and return to its original shape. You can test the bow’s flexibility by bending it back and forth several times. If it breaks or shows signs of cracking, it’s best to find a replacement.
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