Threading
The following subsections describe how to use the threading controls and charts to set up the lathe for a threading operation. If you are unfamil- iar with how to cut threads on a lathe, we strongly recommend that you read books, review industry trade magazines, or get formal training before attempting any threading projects.
Headstock Threading Controls
The threading chart on the headstock face dis- plays the settings for inch threading; a metric thread chart is provided on Page 70.
Using the controls on the lathe, follow the exam- ple below to understand how to set up the lathe for a threading operation.
To set the lathe to thread 20 TPI:
1.Configure gears as instructed in End Gear Configuration Example on Page 44.
2.Move high/low range lever to low, and move feed direction lever all the way up, as shown in Figure 64.
The lathe is now set up to cut 20 TPI threads.
High/Low |
| Feed |
Range Lever |
| Direction |
|
| Lever |
| ||
|
|
|
Feed Direction Lever
UP (Clockwise Rotation)
CENTER (Neutral)
DOWN (CCW Rotation)
High/Low
Range Lever
HIGH LOW