Heidenhain CNC Pilot 4290 V7.1 Description of B and Y axes User Manual download pdf (Page 62)

1.11 DIN PLUS (Y Axis): Milling Cycles

For the cutting direction, machining direction and direction of tool

rotation, please refer to table G846 in the User's Manual.

E Reduced feed rate for circular elements (default: current feed

rate)

J Retraction plane (default: back to starting position)

 XY plane: Retraction position in Z direction

 YZ plane: Retraction position in X direction (diameter)

Q Machining direction (default: 0)

 Q=0: From the inside toward the outside

 Q=1: From the outside toward the inside

O Plunging behavior (default: 0)

 O=0—plunge vertically: The cycle moves the tool to the

starting point; the tool plunges and finishes the pocket.

 Q=1—Approaching arc with depth feed: When machining

the upper milling planes, the tool advances to the milling

plane and then approaches on an arc. When machining the

bottom milling plane, the tool plunges to the milling depth

while moving on the approaching arc (three-dimensional

approaching arc). You can use this approach behavior only

in conjunction with an approaching arc “R” and when

machining from the outside toward the inside (Q=1).

Cycle run

1 Starting position (X, Y, Z, C) is the position before the cycle

begins.

2 Calculate the proportioning of cuts (infeeds to the milling planes,

infeeds in the milling depths).

3 Move to the safety clearance and plunge to the first milling depth.

4 Mill the first plane.

5 Retract by the safety clearance, return and cut to the next milling

depth.

6 Repeat steps 4 and 5 until the complete area is milled.

7 Return to “retraction plane J.”

Parameters—Milling

1 2 ... 57 58 59 60 61 62 63 64 65 66 67 ... 118 119

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Heidenhain CNC Pilot 4290 V7.1 Description of B and Y axes User Manual Page 62