HEIDENHAIN CNC Pilot 4290 - Manual (Page 268)

6 TURN PLUS 256
6.7 Manipulating Contours
The turning contour cannot be edited if
contours machined with the C or Y axis
exist.
”Trimming” soft keys
New length
New end point
New end point
Continued
6.7.1 Editing the Contours of a Blank Part
If there is a standard blank (bar, tube) you can:
■ Delete(d) by selecting: ”Workpiece – Blank – Manipulate - Delete –
Contour”
■ Disconnect by selecting: ”Workpiece - Blank - Manipulate -
Disconnect”
The standard blank is resolved into individual contour elements. You
can then manipulate the individual elements.
If there is a casting or a blank with individual elements was
defined, manipulate it like a finished part.
6.7.2 Trimming
”Trimming” drop-down menu
Length of element:
Change the length of a linear element. The starting point of the contour
element remains unchanged.
■ Closed contours: The manipulated element is recalculated – the
position of the subsequent element is adapted.
■ Open contours: The manipulated element is recalculated – the
following contour train is shifted.
Operation
Place the cursor on the contour element to be modified.
Press the ”confirm” soft key
6.7 Manipulating Contours
Note when editing contours:
■ For contour elements that are superimposed by form elements, the
indicated end points or the end points to be entered are given with
respect to the ”theoretical” end point. When contour elements are
modified, the system automatically adjusts chamfers, roundings,
threads and undercuts to the new position.
■ Sequence, starting point and end point of a contour element are
determined by the direction of definition.
■ After trimming, deleting or inserting operations have been executed,
TURN PLUS analyzes whether successive elements can be
combined to form a line segment or an arc. The edited contour is
standardized.