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Tip
#6
Drum Sanding
(continued)
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Sanding
Odd Shapes
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Figure
18-15. The drum sander is used to smooth surfaces
of elaberately contoured projects like the cabriole
leg.
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Smoothing
the surfaces of workpieces like the cabriole leg is typical
of sanding operations best handled on a drum sander. Because
of the project's elaborate contours, it is difficult to provide
a support surface for the workpiece; so the operation is done
freehand with the operator moving and guiding the workpiece
(Figure 18-15).
Keep a
firm grip on the workpiece and move it along steadily so the
drum can't dig in at any point. Avoid excessive feed pressure.
If necessary, go over an area several times. Warning: Always
move the workpiece so you are feeding against the drum's rotation.
Fitting
a Leg to a Round Column
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Figure
18-16. How to form a cove so a leg can fit against
a round column. Usually the cove won't be exactly the
correct size, but you can make it right by doing some
additional work by hand with sandpaper or a file.
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A furniture
leg that must fit against a round column must have a radius
formed on the edge that mates with the column. This can be
accomplished by setting up the Mark V as shown in Figure
18-16. The table's height is set so the centerline of
the workpiece is on the horizontal centerline of the drum.
It may not be necessary, but the rip fence or a fixture can
be used to keep the work square to the drum.
Move the
workpiece forward so the edge to be sanded will be parallel
to the surface of the drum. Don't force; let the abrasive
work at its own speed. The cove that is formed in the workpiece
will be determined by the diameter of the drum. If it isn't
suitable for the connection you must make, you can modify
it by hand with sandpaper or a file.
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