MOUNTING THE WORKPIECE BETWEEN SPINDLES (FIG. Q & R)
Spindle turning takes place between the centers of the lathe. It requires a spur center in the headstock and a live cen-
ter in the tailstock. Stock for spindles should be straight grained and free of cracks, knots, nails and other defects.
A cup center rather than a cone center in the tailstock will often reduce the risk of splitting the stock.
1. With a combination square, locate and mark the center on
each end of the workpiece. Accuracy is not critical on full
rounds but is extremely important on stock where square
sections are to remain. Put a dimple in the stock with an awl
or nail (or use a spring-loaded automatic center punch).
NOTE:
Extremely hard woods may require kerfs cut into the
ends of the stock using a band saw, so the wood will accept
the spur center and the live center.
2. Drive the spur center about .1 inches (3 mm) into the work-
piece (Fig. Q). Use a wood mallet or dead blow hammer. Be
careful that you do not split the workpiece. Never use a steel
face hammer and never drive the workpiece onto the spur
center while it is mounted on the spindle of the lathe.
3. Clean the tapered end of the spur center and the inside of
the headstock spindle. Insert the tapered end of the spur cen-
ter (with the attached workpiece) into the headstock spindle.
Support the workpiece while loosening the tailstock locking
lever and bringing the tailstock into position. Tighten the tail-
stock locking lever to lock the tailstock to the bed.
4. Advance the tailstock quill with the hand wheel in order to
seat the live center into the workpiece. Use enough pressure
to secure the workpiece between the centers so that it won’t
fly off, but do not use excessive pressure. Excessive pressure
runs the risk of overheating the center bearings and damag-
ing both the workpiece and the lathe. Tighten the quill locking
handle.
5. Adjust the position of the tool rest to be parallel to the
workpiece. The tool rest height should be just below the cen-
terline and approximately .1 to .2 inches (3 mm to 6 mm)
from the corners of the workpiece to be turned. Secure the
tool rest by tightening the tool rest locking handle and locking
lever (Fig. R).
6. Before switching on the lathe, rotate the workpiece by hand
to check for proper clearance.
3-6mm
Centerline
Direction of Rotation
OPERATION
WARNING:
To prevent serious injury, make sure all the warnings and instructions have been read and
understood before operating this tool.
Fig. Q
Fig. R
15
Summary of Contents for LA3424
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