Heidenhain CNC Pilot 4290 V7.1 Description of B and Y axes User Manual download pdf (Page 57)

HEIDENHAIN CNC PILOT 4290 57

1.11 DIN PLUS (Y Axis): Milling Cycles

G845 (Y axis) – 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 56

 G845—Milling: Page 58

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.

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Heidenhain CNC Pilot 4290 V7.1 Description of B and Y axes User Manual Page 57