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Model G0746/G0749 (Mfg. Since 3/13)
-49-
Aligning Cutting Tool with Spindle
Centerline
Cutting
Tool
Spindle
Center
Line
Figure 66. Cutting tool aligned with spindle
centerline (viewed from tailstock).
Tools Needed Qty
Tool Post T-Wrench ........................................... 1
Steel Shims ....................................... As Needed
Cutting Tool ....................................................... 1
Tailstock Center ................................................. 1
Cutting
Tool
Tailstock
Center
(Side View)
Figure 67. Cutting tool aligned to the tailstock
center.
Cutting
Tool
Tailstock
Center
(Top View)
For most operations, the cutting tool tip should be
aligned with the
spindle
centerline, as illustrated in
the Figure below.
There are a number of ways to check and align
the cutting tool to the spindle centerline. If nec-
essary, you can raise the cutting tool by placing
steel shims underneath it. The shims should be
as long and as wide as the cutting tool to properly
support it.
Below are two common methods:
• Move the tailstock center over the cross slide
and use a fine ruler
to measure the distance
from the surface of the cross slide to the tip
of the center. Adjust the
cutting tool height so
it is the same distance above the cross slide
as the tailstock center.
•
Align the tip of the cutting tool with a
tailstock
center, as instructed in the following pro-
cedure. For this to work, the tailstock must
be aligned to the spindle centerline (refer to
Aligning Tailstock To Spindle Centerline
in this manual for detailed instructions).
To align the cutting tool with the tailstock
center:
1.
Mount the cutting tool in the tool post, then
secure the post so the tool faces the tailstock.
2.
Install a center in the tailstock, and position
the center tip near the cutting tool tip.
3.
Lock the tailstock and quill in place.
4.
Adjust the height of the cutting tool so that the
tool tip is aligned vertically and horizontally
with the center tip, as illustrated below.