Model G0740 (Mfg. Since 11/12)
-41-
Note: As long as this dead center remains in
the chuck, the point of the center will remain
true to the spindle centerline. The point will
have to be refinished whenever the center is
removed and then returned to the chuck.
Install a center in the tailstock.
Attach a lathe dog to the test stock from
Step 2
, then mount it between the centers as
shown in the Figure below.
Figure 48. Example photo of stock mounted
between the centers.
6. Turn 0.010" off the stock diameter.
7.
Mount a test or dial indicator so that the
plunger is on the tailstock quill.
Note: If necessary in the following step, refer
to the Offsetting Tailstock
subsection for
detailed instructions.
8. Use calipers to measure both ends of the
workpiece.
— If the test stock is thicker at the tailstock
end, move the tailstock toward the front
the lathe
1
⁄
2
the distance of the amount of
taper, as shown in the Figure below.
Move tailstock toward
front of lathe half the
amount of taper
Looking down from above.
Figure 49. Adjust tailstock toward the operator.
— If the test stock is thinner at the tailstock
end, move the tailstock toward the back
the lathe
1
⁄
2
the distance of the amount of
taper, as shown in the Figure below.
Looking down from above.
Move tailstock toward
back of lathe half the
amount of taper
Figure 50. Adjust tailstock away from the
operator.
9. Repeat Steps 6–8 until the desired accuracy
is achieved.
