Oliver 2019, Руководство пользователя

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2019 Lathe OLIVERMACHINERY.NET 29 | Page
Basic Spindle Turning Setup Steps
Mounting the Workpiece
1. Find the center of both ends of the spindle
blank by drawing two diagonal lines across
the corners.
2. On the end to be mounted to the spur center,
align the workpiece center with the spur
center, then use a rubber or wood mallet to
drive the spur center approximately 1/8
”
into the wood.
3. If the blank is too hard or too brittle for the
spur center to drive into, use a saw to cut
two grooves along the diagonal lines drawn,
then drill a hole at the center of the blank.
4. On the other end of the workpiece, use an
awl to create a hole at the center.
5. Insert the spur center into the spindle and
the live center into the quill. Make sure the
tapered surface is free of dust and dirt.
Extend the quill past
the 0” mark on the scale .
Otherwise, the centers will not seat properly.
6. Mount the blank on the spur center and
make sure the spurs sink back into the
indents created earlier.
7. Align the other end of the blank with the live
center, then move the tailstock until the live
center sinks into the center of the blank.
Lock the tailstock and extend the quill to
apply just enough pressure to mount the
blank securely on the lathe. Excessive
pressure can cause the bearings to wear
prematurely. Too much pressure can also
cause the blank to flex, resulting in a
chattered finish.
WARNING
The spur center can drive blanks up to 6” in
diameter. Driving a big workpiece with a
spur center can cause the spur center to slip
on the blank and, in some cases, cause the
workpiece to dislodge from the lathe, which
can cause serious injuries or death.
To turn larger diameter spindles, use a
different attachment to drive the blank.
Round the edges with sharp corners. This
makes the roughing work safer and easier.
Consult accredited training resources to
understand the risks. Use the right tools and
take all precautions.