3 t y pes of digitizing – HEIDENHAIN TNC 426B (280 472) Touch Probe Cycles User Manual
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HEIDENHAIN TNC 426, TNC 430
135
5.3 T
y
pes of Digitizing
U
U
U
U
Max. probe point interval
(M, S): Maximum spacing between
consecutive digitized positions. The TNC also accounts for
important points that define the contour of the model, for example
at inside corners. Input range: 0.02 to 20 mm (M), 0.02 to 5 mm (S)
U
U
U
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Tolerance
(M): The TNC stores only those digitized positions whose
distance from a straight line defined by the last two probe points
exceeds the programmed tolerance. This ensures a high density of
digitized positions for contours with sharply curved surfaces, and as
low a density as possible for contours with flat surfaces. An input
value of zero means that the digitized positions are output in the
programmed probe point interval. Input range: 0 to 0.9999 mm
U
U
U
U
Feed rate reduction at edges
(M): Answer the dialog question
with NO ENT. The TNC enters a value automatically.
The feed rate reduction is effective only if the number of
points at which the feed rate must be reduced does not
exceed 1000 points in a digitizing line.