HEIDENHAIN iTNC 530 (340 49x-06) Pilot - Manual (Page 104)

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Definin
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Unit 122 Contour Pocket
The Contour Pocket unit is used to rough out pockets, which may contain
islands, of any shape.
If necessary, you can assign every subcontour its own depth (FCL 2
function) in the contour detail form. In this case you must always begin
with the deepest pocket.
Parameters on the overview form:
U T : Tool number or name (switchable via soft key)
U S : Spindle speed [rpm] or cutting speed [m/min or ipm]
U F : Feed rate for reciprocating plunge [mm/min], FU [mm/rev] or FZ
[mm/tooth]. Enter 0 for perpendicular plunge.
U F : Feed rate for plunging [mm/min], FU [mm/rev] or FZ [mm/tooth]
U F : Feed rate for milling [mm/min] or FU [mm/rev] or FZ [mm/tooth]
U Top surface coordinate : Workpiece top-surface coordinate given with
respect to the entered depths
U Depth : Milling depth
U Plunging depth : Infeed per cut
U Allowance for side : Finishing allowance for the side
U Allowance in depth : Finishing allowance for the depth
U Contour name : List of the subcontours (.HC files) to be linked. If the DXF
converter option is available, you can use it to make a contour directly
from the form.