HEIDENHAIN CNC Pilot 4290 V7.1 - Manual (Page 271)

HEIDENHAIN CNC PILOT 4290 271
4.27 Milling Cy
cles
G845 – Calculating hole positions
“G845 A1 ..” calculates the hole positions and stores them at the
reference specified in “NF.” The cycle takes the diameter of the active
tool into account when calculating the hole positions. Therefore, you
need to insert the drill before calling “G845 A1 ..”. Program only the
parameters given in the following list.
See also:
„ G845—Fundamentals: Page 270
„ G845—Milling: Page 272
Parameters—Calculating hole positions
NS Block number – reference to the contour description
I Oversize in X direction
K Oversize in Z direction
Q Machining direction (default: 0)
„ Q=0: From the inside toward the outside
„ Q=1: From the outside toward the inside
A Sequence for “Calculate hole positions”: A=1
NF Position mark—reference at which the cycle stores the hole
positions [1 to 127].
WB Plunge length – diameter of the milling cutter
„ G845 overwrites any hole positions that may still be
stored at the reference “NF.”
„ The parameter “WB” is used both for calculating the
hole positions and for milling. When calculating the hole
positions, “WB” describes the diameter of the milling
cutter.