Circle G06 With Tangential Connection - HEIDENHAIN TNC 640 User Manual

7

Circle G06 with tangential connection

The tool moves on an arc that starts tangentially to the previously
programmed contour element.
A transition between two contour elements is called tangential
when there is no kink or corner at the intersection between the
two contours—the transition is smooth.
The contour element to which the tangential arc connects must be
programmed immediately before the G06 block. This requires at
least two positioning blocks.
Coordinates of the arc end point, and if
necessary:
Feed F
Miscellaneous function M
Example
N70 G01 G41 X+0 Y+25 F300 M3*
N80 X+25 Y+30*
N90 G06 X+45 Y+20*
N100 G01 Y+0*
A tangential arc is a two-dimensional operation: the
coordinates in the G06 block and in the contour element
preceding it must be in the same plane of the arc!
302
Programming Contours | Path contours  Cartesian coordinates
HEIDENHAIN | TNC 640 | ISO Programming User's Manual | 10/2017