2 - 16 Basic NC G Codes
704-0115-307
WinMax Lathe NC Programming
G33 - Threading
This code allows you to program a simple threading cycle. Refer to G78 - Threading
Cycle, on page 2 - 24 for information about programming more the complex, multi-pass
Threading Cycle for OD and ID threads,
Default—No
Modal—No
Cancels—None
Example—G33
To program a threading move, X and Z and either I or K are required. P (the thread start
angle) and F (feedrate) may be specified.
1. Program the thread's endpoint (using Z only, X only, or a combination of X and
Z for a taper thread).
2. Program the pitch of the thread using either of these codes:
•
K (the pitch along the Z axis)
•
I (the pitch along the X axis)
G0 X3.5 Z4 (Position for thread)
G33 Z1 K0.2
(Cut thread)
G1 X3.6 (Pullout of thread)
Example—G33 with P Value
You can also start a thread at a given angle. The angle value may range from -360.0000
to 360.0000. A zero angle starts the thread at the index mark of the spindle encoder, and
is the default. The P value is not modal and must appear in the same block as the G33.
The thread start angle is specified by a P value in a G33 block, such as:
G0 X3.5 Z4 (Position for thread)
G33 Z1 K0.2 P180
(Cut thread using 180° thread start angle)
G1 X3.6 (Pullout of thread)
If you are programming a tapered thread (both X and Z axes move)
you must program the lead (I or K) for the axis that has the longest
move.
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Страница 20: ...xx Programming and Operation Information 704 0115 307 WinMax Lathe NC Programming...
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Страница 208: ...4 94 ISNC G Codes 704 0115 307 WinMax Lathe NC Programming...
Страница 236: ...5 28 ISNC M Codes 704 0115 307 WinMax Lathe NC Programming...
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