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The tool rest that comes with a lathe is
generally cast metal. It is softer than the metal of the turning tools
that rest on its surface and cause it damage.
There are replacement
tool rests on the market that have a hardened surface. Purchasing
one of these would be another option to ensure your tools have a smooth
surface to glide along as you turn. |
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To create smooth flowing lines on a turning
the surface of the tool rest needs to be smooth. |
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It is very hard to expect a turning tool
to glide smoothly along a surface like this. Dents and gouges in the
tool rest are often reflected in the turned wood surface. |
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The first step in preventing damage to
the tool rest is removing all sharp edges from your turning tools.
Scrapers, parting tools, and skews usually have very sharp edges. Catches
while turning can force the sharp corners into the tool rest surface.
Use a grinder or belt sander to slightly radius the edges of all turning
tools where they may contact the tool rest. Rounding the edges slightly
does not lose tool stability. It will actually help with operations
like shear scraping and using a rectangular section skew. |
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Take a few minutes before starting to turn
and clean up the surface of the tool rest. Run a file along the surface
from end to end. Avoid filing in one place and causing a low area.
Also, remove any sharp edges from the ends or anywhere your hand will
be in contact with the rest. |
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Taking a few quick passes with a piece
of sand paper will remove any rust or residue from turning that may
build up. |
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Use some paraffin wax to lubricate the
surface and fill in any small dings present. |
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I use a little WD-40 on a paper towel to
remove excess paraffin wax.
You should now have a smooth tool rest
surface ready to perform its job without interfering with your woodturning
designs. |