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The pumpdrills on this page were made by Nicholas Neddo. Photos by
Walter Muma. |
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This pumpdrill has a round disc of heavy
wood as a counterweight.
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This close-up photos shows how the end of
the pumpdrill has a replaceable "bit". This is so when the tip wears
down, it has no effect on the size of the drill. As well, if this
tip were not replaceable, eventually one would have to replace the
whole shaft!
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This second pumpdrill has rocks firmly
tied in place to provide a counterweight. Care must be taken to find
rocks of equal weight, or else the drill will be off-balance and
difficult to use (it will wobble excessively).
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Click on the small photo to the left to see a movie of
the first pumpdrill in action. Smoke is produced and is visible in
the latter half of the movie. Nick Neddo is demonstrating. Windows Media file (WMV), 21
seconds, 1.5MB |
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