HEIDENHAIN TNC 426 (280 476) Pilot - Manual (Page 41)

42
Cycles
for
Machining
Holes
and
Threads
BORING (202)
• The machine and TNC must be prepared for the BORING
cycle by the machine tool builder!
• This cycle requires a position-controlled spindle!
Danger of collision! Choose a disengaging direction that
moves the tool away from the wall of the hole.
CYCL DEF: Select Cycle 202 BORING
Set-up clearance: Q200
Depth — Distance between workpiece surface and bottom of hole:
Q201
Feed rate for plunging: Q206
Dwell time at depth: Q211
Retraction feed rate: Q208
Surface coordinate: Q203
2nd set-up clearance: Q204
Disengaging directn (0/1/2/3/4) at bottom of hole: Q214
Angle for oriented spindle stop: Q336
The TNC automatically pre-positions the tool in the tool axis.