HEIDENHAIN CNC Pilot 4290 - Manual (Page 80)

4 DIN PLUS 68
4.2.4 Tool Programming
The designations of the tool pockets are fixed by the
machine tool builder. Each tool holder has a unique T
number.
In the ”T command” (MACHINING section) you
program the position of the tool holder, and therefore
the position to which the tool carrier rotates. The CNC
PILOT retrieves the assignment of the tools to the
turret positions from the TURRET section, or the tool
list (in case the T number is not defined in TURRET).
4.2 Basics of Pr
ogr
amming
■ Additions/changes on the contours are not considered
until GRAPHIC is selected again.
■ Unambiguous NC block numbers are a prerequisite for
the ”contour display”!
Continued
The contour follow-up function can also be used for
auxiliary contours.
Preconditions for contour follow-up:
■ Definition of blank
■ Proper description of tools (”simple definition of
tools” is not sufficient)
The contour follow-up function can be used only for
turning contours; it cannot be used for contours
with the C or Y axis.
Contour simulation
During editing CNC PILOT displays programmed
contours in up to two graphic windows.
■ Selection of the graphic window: ”Graphic –
Window” menu item
■ Back to machine display: ”Graphic – Graphic OFF”
menu item
Activate graphic window or update the
contour
Note:
■ The starting point of the turning contour is marked
by a ”small box.”
■ When the cursor is located on a block of the
”BLANK or FINISHED PART” section the
corresponding contour element is highlighted in red
and the direction of contour definition is indicated.
■ When programming fixed cycles, you can use the
displayed contour for establishing block references.
■ The CNC PILOT starts at the pattern base when
displaying contours on lateral surfaces (reference
diameter for SURFACE).