HEIDENHAIN TNC 620 (34056x-04) Cycle programming - Manual (Page 233)

FACE MILLING (Cycle 232, DIN/ISO: G232, software option 19) 10.4
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TNC 620 | User's Manual Cycle Programming | 5/2013
233
Please note while programming:
Enter the 2nd set-up clearance in Q204 such that no
collision with the workpiece or the fixtures can occur.
If the starting point in the 3rd axis Q227 and the
end point in the 3rd axis Q386 are entered as equal
values, the TNC does not run the cycle (depth = 0
has been programmed).
Cycle parameters
Machining strategy (0/1/2) Q389: Determine how
the TNC should machine the surface:
0 : Meander machining, stepover at the positioning
feed rate outside the surface being machined
1 : Meander machining, stepover at the feed rate for
milling within the surface being machined
2 : Line-by-line machining, retraction and stepover at
the positioning feed rate
Starting point in 1st axis Q225 (absolute): Starting
point coordinate of the surface to be machined in
the reference axis of the working plane. Input range
-99999.9999 to 99999.9999
Starting point in 2nd axis Q226 (absolute): Starting
point coordinate of the surface to be machined in
the minor axis of the working plane. Input range
-99999.9999 to 99999.9999
Starting point in 3rd axis Q227 (absolute):
Coordinate of the workpiece surface used to
calculate the infeeds. Input range -99999.9999 to
99999.9999
End point in 3rd axis Q386 (absolute): Coordinate
in the spindle axis to which the surface is to be face
milled. Input range -99999.9999 to 99999.9999
1st side length Q218 (incremental value): Length of
the surface to be machined in the reference axis of
the working plane. Use the algebraic sign to specify
the direction of the first milling path in reference
to the
starting point in the 1st axis. Input range
-99999.9999 to 99999.9999
2nd side length Q219 (incremental value): Length
of the surface to be machined in the minor axis of
the working plane. Use the algebraic sign to specify
the direction of the first stepover in reference to
the
starting point in the 2nd axis. Input range
-99999.9999 to 99999.9999