Fire
Bow drill: what actually matters
Friction fire fails on details. Get these right before the arm burns out.
Topic summary
Friction fire fails on details. Get these right before the arm burns out.
Intended uses
Fire skill (all levels, ~15 min practice)
NatureMentor — Bow Drill Fire
Step-by-step
Match soft, dry woods for spindle and hearth (cedar, cottonwood root, willow). Don't mix hard and soft.
Spindle: thumb-thick, 8 inches, blunt on bottom (friction end), pointed on top (bearing end).
Cut a pie-slice notch in the hearth board reaching to the center of the burn socket, so dust can pile up.
Bow: shoulder-wide, slight curve, loose cord that tightens once the spindle is loaded.
Long, full strokes; downward pressure only increases once black dust and smoke are steady.
Tap the ember out of the notch onto bark, transfer to a tinder bundle, and blow steady from below.
Tip: If it squeals, it's polished — rough up the socket and hearth with sand.
Related outdoor skills
Educational reference only. Wilderness conditions change fast — practice in low-stakes settings, take a certified wilderness first-aid course, and confirm regional regulations before you rely on any of these skills in the field.