HEIDENHAIN TNC 320 User Manual page 160

6.1 Fundamentals
Overview
The TNC provides two cycles for machining point patterns directly:
Cycle
220 POLAR PATTERN
221 CARTESIAN PATTERN
You can combine Cycle 220 and Cycle 221 with the following fixed
cycles:
If you have to machine irregular point patterns, use CYCL
CALL PAT (see "Point Tables" on page 54) to develop point
tables.
More regular point patterns are available with the PATTERN
DEF function (see "Pattern Definition PATTERN DEF" on
page 46).
Cycle 200 DRILLING
Cycle 201 REAMING
Cycle 202 BORING
Cycle 203 UNIVERSAL DRILLING
Cycle 204 BACK BORING
Cycle 205 UNIVERSAL PECKING
Cycle 206 TAPPING NEW with a floating tap holder
Cycle 207 RIGID TAPPING without a floating tap holder NEW
Cycle 208 BORE MILLING
Cycle 209 TAPPING WITH CHIP BREAKING
Cycle 240 CENTERING
Cycle 251 RECTANGULAR POCKET
Cycle 252 CIRCULAR POCKET MILLING
Cycle 253 SLOT MILLING
Cycle 254 CIRCULAR SLOT (can only be combined with
Cycle 221)
Cycle 256 RECTANGULAR STUD
Cycle 257 CIRCULAR STUD
Cycle 262 THREAD MILLING
Cycle 263 THREAD MILLING/COUNTERSINKING
Cycle 264 THREAD DRILLING/MILLING
Cycle 265 HELICAL THREAD DRILLING/MILLING
Cycle 267 OUTSIDE THREAD MILLING
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Soft key Page
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Page 164
Fixed Cycles: Pattern Definitions