Grizzly G0776 - Section 4: Operation - Tool Post and Cutting Tool Alignment; Tool Post Function and Tool Installation; Aligning Cutting Tool with Spindle Centerline

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Model G0776 (Mfd. Since 7/14)
Tool Post
The quick-change tool post (see Figure below) is
a 200-series design.
Figure 57. Example of tool mounted in tool post.
Cutting
Tool
Tool Post
Set Screw
Tool Holder
Thumb
Wheel
Top Nut
Lock Lever
Tool holders can be quickly loaded and unloaded
using the lock lever, and rotated by loosening the
top nut. Tools up to
5
⁄8" can be secured by tighten-
ing the tool holder set screws. The thumb wheel
rotates to adjust cutting tool height.
To install tool in tool post:
1
.
Position tool in holder so cutting edge extends
just enough to allow tool to cut freely—but no
more. The cutting edge must be well sup-
ported to ensure good cutting results and
avoid chipping.
2. Secure tool with at least two set screws.
3.
Adjust cutting tool height to spindle center-
line, as instructed in next subsection.
Over-extending a cutting tool from the post
will increase risk of tool chatter, breakage,
or tool loosening during operation, which
could cause metal pieces to be thrown at
the operator or bystanders with great force.
DO NOT extend a cutting tool more than 2.5
times the width of its cross-section (e.g.,
2.5 x 0.5" = 1.25").
Tools Needed Qty
Open-End Wrench/Socket 27mm ...................... 1
Hex Wrench Size ......................................... 5mm
Installing Tool
Aligning Cutting Tool with Spindle
Centerline
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
for detailed instructions).
For most operations, the cutting tool tip should be
aligned with the
spindle
centerline, as illustrated
below.
Figure 58. Cutting tool aligned with spindle
centerline (viewed from tailstock).
Cutting
Tool
Spindle
Center
Line