Operation Manual

HEIDENHAIN CNC PILOT 4290 277
4.27 Milling Cycles
Cycle run
1 Starting position (X, Z, C) is the position before the cycle begins.
2 Calculates the number of cutting passes (infeeds to the milling
planes, infeeds in the milling depths).
3 Moves to the safety clearance and feeds to the first milling
depth.
4 Mills a plane.
5 Retracts by the safety clearance, returns and cuts to the next
milling depth.
6 Repeat steps 4 and 5 until the complete surface is milled.
7 Returns to retraction plane J.
Pocket milling, finishing G846
Cutting direction
Direction of tool
rotation
Execution Cutting direction
Direction of tool
rotation
Execution
Up-cut milling
(H=0)
Mx03 Up-cut milling
(H=0)
Mx03
Up-cut milling
(H=0)
Mx04 Up-cut milling
(H=0)
Mx04
Climb milling (H=1) Mx03 Climb milling (H=1) Mx03
Climb milling (H=1) Mx04 Climb milling (H=1) Mx04