HEIDENHAIN PT 880 - Manual (Page 82)

82 I Operating Instructions
I – 7 Ex
ecuting a Pr
ogr
am
Positions and hole patterns
For positions and hole patterns, the position or center of the hole is
shown as a cross-hair.
A circle around the position/hole location represents the tolerance
band. When the center of the tool icon is within the circle, the cutting
is within the tolerance band.
Full part window
The full part window provides for very coarse positioning. It shows the
tool relative to the entire part. The scaling is such that the entire part
will fit within the window with a small buffer all around.
The part profile is fixed. The tool icon is shown to scale using the
current tool’s radius. As the table moves, the tool icon moves relative
to the part.
The shaded area represents the stock material. It is shown slightly
larger than the part's extents. As the tool icon moves, the shading
below the tool changes to background gray. This material removal
allows the shading to be used as an indication of the material
remaining.
The material removal mechanism functions only while the contouring
view is shown. If the tool is moved while another view is selected, the
affected material will not be removed in the contour view.
DRO window
The contour view provides the necessary feedback for positioning
precisely or for following a contour along the XY plane.
The DRO window shows the distance-to-go positions for X, Y and Z
axis. The DRO window allows viewing the position without switching
to another view.