G-CODEEIA/ISO · modal · group 01
G06.1

Fine spline interpolation

Machine-specific. This G-code reference is specific to the Mazak INTEGREX e-670H / e-670H-S with the MAZATROL SmoothX control (EIA/ISO programming manual H747PB0030E). G-code availability depends on fitted options, and groups and behaviour differ between Mazak models and control generations — verify against the manual for your own machine before programming with any code.
What it does

The spline interpolation automatically creates a curve that smoothly traces specified points, and thus enables a high-speed and high-accuracy machining for free shapes along smoothly curved tool path. The modal preparatory function G61.2 is used to select a geometry compensation mode which is in general equivalent to G61.1 with a particular difference in that all blocks of G1 (linear inter- polation) are processed as those of fine spline interpolation. This function is especially useful in applying fine spline interpolation to a programm with microsegment blocks created by a CAM.

G06.1 is modal (group 01) — it stays in effect until another code of the same group replaces it.

Programming format
G06.1 Xx Yy
1 1
G61.2 ............. Modal spline interpolation ON

G64 ................ Modal spline interpolation OFF
Address words
  • Example 1: F101 = 80 deg
Source

Mazak PROGRAMMING MANUAL for EIA/ISO PROGRAM, manual H747PB0030E, section 6-11 Spline Interpolation: G06.1 (Option), p. 3-11, 6-28, 6-29, 6-30, 6-31, 6-32, 6-33, 6-34, 6-35, 6-36, 6-37, 6-38, 6-39. Reference and explanation only — not a reproduction of the manual.

Not sure how to use it? Ask the Mazatrol assistant →