HEIDENHAIN MANUALplus 4110 Pilot - Manual (Page 104)

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Helical groove milling G798
G798 mills a helical groove from the current tool position to the “Target
point X,Z“. “Start angle C“ defines the position of the groove beginning.
Parameters
X:
Target point (diameter value) – default: current X position
Z: Groove target point
C: Start angle – default: 0
F: Pitch
P, K: Approach length, runout length – default: 0
U: Groove depth
I: Maximum downfeed – default: no downfeed
E: Reduction value for downfeed reduction – default: 1
Figure definition lateral-surface complete circle G314
G314 defines a complete circle on a lateral surface. Program this figure
together with G794.
Parameters
Z, C:
Center point, angle of the center point
CY: Center point as length value
R: Circle radius