Type Of Interpolation Between The Starting And End Position - HEIDENHAIN TNC 620 User Manual

13
Type of interpolation between the starting and end
position
The control provides two functions for defining the type of inter-
polation between the starting and end position:
PATHCTRL AXIS determines that the tool tip
moves on a straight line between the starting
and end position of the respective NC block
(Face
at the starting and end positions corresponds
to the respective programmed values, but the
tool circumference does not describe a defined
path between the starting and end positions.
The surface produced by milling with the tool
circumference
the machine geometry
PATHCTRL VECTOR determines that the tool tip
moves on a straight line between the starting
and end position of the respective NC block and
that the direction of the tool axis is interpolated
between the starting and the end position so
that a plane results from machining
Milling)
To obtain the most continuous multi-axis movement
possible, define Cycle 32 with a tolerance for rotary
axes.
The tolerances of the rotary axes and the path deviation
should have the same magnitude. The greater the
tolerance for the rotary axes is defined, the greater the
contour deviations during peripheral milling.
Further information: Cycle Programming User's
Manual
Example
...
13 FUNCTION TCPM F TCP AXIS SPAT PATHCTRL AXIS
14 FUNCTION TCPM F TCP AXIS POS PATHCTRL VECTOR
...
576
Milling). The direction of the tool axis
(Peripheral Milling) depends on
Multiple-Axis Machining | FUNCTION TCPM (option 9)
(Peripheral
Tool tip moves along a straight line
Tool tip and tool directional vector move in one plane
HEIDENHAIN | TNC 620 | Conversational Programming User's Manual | 10/2017