Model G0768/G0769 (Mfd. Since 8/15)
-49-
Thread Charts—Display headstock end gear
positions used for cutting various metric or inch
threads (see
Figure 61).
Figure 61. Threading charts.
0.0037"
84
20
A
A
40
in/
mm
n/1"
C
C
D
D
B
B
E
E
F
A
C D
B
E F
A
C D
B
E F
F
80
80
0.40
1.25 1.50 1.75 2.00 2.50 3.00
55
80
80
53
71
7163
57
71
71
63
33 3060 40
40
50
60
84
80
50
60
20
80
80
80
63
63
80
60
70
70
70
57
72
80
80
30
33 53 30 60 40 40
40
30
33
70
0.50 0.60 0.70 0.80 1.00
80
30 72
33 80
30
0.0068"
A
C D
B
E F
A
C D
B
E F
30
19 20 22 24 32 40 44
80 80
30
33 40
65
70
80 60
60
60
60
63
63
53
9 10 11 12 13 14 16 18
50
50
55
80
80
80
80
80
8060
60
7153 55
33
30
55
55
4030
53
53
53 72
63
70
57
57 72
72
72
72 80
70 40
40
40
63
57
55
Metric
Thread Chart
Inch Thread
Chart
Figure 62 identifies the three available feed rates
and the feed icon at the top of the feed rate chart.
How to Read the Feed Chart
0.0037"
84
20
A
A
40
in/
C
C
D
D
B
B
E
E
F
F
80
80
80
30 72
33 80
30
0.0068"
Figure 62. Chart displays the three feed rates.
Feed Rates
Feed Rate
Icon
Figure 63 identifies the end gears on the upper,
middle, and lower shafts, and the 40-tooth (40T)
spindle gear. The gears are represented by letters
in the columns and the diagram.
0.0037"
84
20
A
A
40
in/
C
C
D
D
B
B
E
E
F
F
80
80
80
30 72
33 80
30
0.0068"
Figure 63. Identification of upper, middle and
lower shaft gears.
Upper
Shaft
Gears
Lower Shaft Gears
Middle Shaft Gears
Spindle
Gear
Columns
