HEIDENHAIN iTNC 530 (340 49x-03) Pilot - Manual (Page 121)

121
IS
O P
ro
g
ra
mmi
ng
*) Non-modal function
Dimensions
G90 Absolute dimensions
G91 Incremental (chain) dimensions
Unit of Measure (at Beginning of Program)
G70 Unit of measure: Inch
G71 Unit of measure: mm
Blank Form Definition for Graphics
G30 Set the working plane, MIN point coordinates
G31 Dimensional data (with G90, G91), coordinates of
the MAX point
Other G functions
G29 Assume the last position as the pole
G38 Stop program run
G51* Call next tool number (only with central tool file)
G98* Set marker (label number)
Define machining plane
G17 Working plane X/Y, tool axis Z
G18 Working plane Z/X, tool axis Y
G19 Working plane Y/Z, tool axis X
G20 Fourth axis is tool axis
Chamfer, Rounding, Approach /Depart Contour
G24* Chamfer with length R
G25* Corner rounding with radius R
G26* Tangential contour approach on arc with radius R
G27* Tangential contour departure on arc with radius R
Define the tool
G99* Tool definition in the program with length L and
radius R
Tool radius compensation
G40 No radius compensation
G41 Tool radius compensation, left of the contour
G42 Tool radius compensation, right of the contour
G43 Paraxial radius compensation: the path is
lengthened
G44 Paraxial radius compensation: the path is
shortened