HEIDENHAIN TNC 320 - Page 109

THREAD MILLING (Cycle 262, DIN/ISO: G262) 4.6
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HEIDENHAIN | TNC 320 | User’s manual for cycle programming | 9/2016
109
Q204 2nd set-up clearance? (incremental):
Coordinate in the spindle axis at which no collision
between tool and workpiece (fixtures) can occur.
Input range 0 to 99999.9999
Q207 Feed rate for milling?: Traversing speed of
the tool in mm/min during milling. Input range 0 to
99999.999 alternatively FAUTO
Q512 Feed rate for approaching?: Traversing
speed of the tool in mm/min while approaching.
For smaller thread diameters you can decrease
the approaching feed rate in order to reduce the
danger of tool breakage. Input range 0 to 99999.999
alternatively FAUTO
Q253=750 ;F PRE-POSITIONING
Q351=+1 ;CLIMB OR UP-CUT
Q200=2 ;SET-UP CLEARANCE
Q203=+30 ;SURFACE COORDINATE
Q204=50 ;2ND SET-UP
CLEARANCE
Q207=500 ;FEED RATE FOR
MILLNG
Q512=0 ;FEED FOR APPROACH