Everything you need to know about Sanding!
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power sander is best?
really isn't any pat answer, since each type of
machine is designed for a particular job.
Sanders are the fastest-cutting of the abrasive machines
and are used primarily for bringing the stock to final dimension
and removing deep blemishes from workpiece surfaces. They're
available in both portable and stationary models with belt
widths ranging from 3" to 36" and more for some
heavy, industrial machines. When using a portable belt sander,
let the weight of the machine do the work and NEVER apply
excessive pressure. With stationary models, a limited amount
of pressure may be required, depending on the weight of your
workpiece. It's important to always keep the sander or the
workpiece moving at all times - especially on veneered surfaces
(such as plywoods). If you dwell, you could easily gouge the
stock or sand through the veneered surface before you realize
it. In addition, for the smoothest finish, always sand WITH
the grain of the wood. If you're anxious to remove stock more
quickly, sand diagonally or perpendicular to the grain first,
then follow-up by sanding WITH the grain.
Disc Sanders are also available in portable or stationary
models, although portable models are not recommended for woodworking
because they can easily gouge the stock and are difficult
using a stationary disc sander, always sand on the down
side of the disc and keep your stock moving. Again, dwells
can cause unsightly gouges that could ruin your project. Standard
disc sanders will remove stock quickly but are not recommended
for finish sanding, since they will leave swirl marks. However,
Shopsmith's unique Conical Disc Sander is well suited for
finish sanding, since it has been designed to leave a swirl-free
Sanders are used primarily for sanding inside and outside
curves and profiles. Shopsmith offers a wide range of small
and large diameters and can be used in the Drill Press mode
or in a hand-held portable electric drill. The Shopsmith Oscillating
Drum Sander moves up-and-down as it rotates, constantly exposing
new abrasives as it moves for a smoother finish and less loading
of the drum. Another unique drum sander is Shopsmith's inflatable
or contour Drum Sander. It has been designed for use between
Lathe Centers and is inflated with a bicycle pump prior to
use. Inflating it to a low pressure allows the drum to conform
to different contours...while inflating it to higher pressures
is better for flatter surfaces.
Sanders are a smaller version of a belt sander. Shopsmith's
Strip Sander can be used with your choice of 1/2" or
1" wide sanding belts in a range of grits from 60 to
600 for coarse to fine sanding, grinding or sharpening. The
Shopsmith model also comes with both a flat and convex back-up
belt platen, plus a unique feature that permits its use for
internal sanding of fine fretwork or cutouts.
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