Spiral interpolation (CW)

Q: What does Mazak G-code G02.1 do?

G02.1 — Spiral interpolation (CW) on the MAZATROL SmoothX control (INTEGREX e-670H). Commands G2.1 and G3.1 provide such an interpolation that the starting and ending points are connected smoothly for an arc command where the radii of the both points differ from each (Normal circular interpolation) Ending point (Spiral interpolation) Ending point Starting point rs Commands G17, G18 and G19 are used to select a plane for motion control. Registering the three fundamental axes as parameters allows you to select a plane generated by any two non-parallel axes. Use these G-codes to select the plane for the following: - Circular interpolation - Nose radius compensation - Polar coordinate interpolation - Chamfering - Positioning for fixed cycle operation - Corner rounding/chamfering

Q: What is the programming format of G02.1?

G17 G2.1 (or G3.1) Xp_ Yp_ I_ J_ (_) F_ P_ Arc center coordinates Arc ending point coordinates G18 G2.1 (or G3.1) Zp_ Xp_ K_ I_ (_) F_ P_ G19 G2.1 (or G3.1) Yp_ Zp_ J_ K_ (_) F_ P_

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

Commands G2.1 and G3.1 provide such an interpolation that the starting and ending points are connected smoothly for an arc command where the radii of the both points differ from each (Normal circular interpolation) Ending point (Spiral interpolation) Ending point Starting point rs Commands G17, G18 and G19 are used to select a plane for motion control. Registering the three fundamental axes as parameters allows you to select a plane generated by any two non-parallel axes. Use these G-codes to select the plane for the following: - Circular interpolation - Nose radius compensation - Polar coordinate interpolation - Chamfering - Positioning for fixed cycle operation - Corner rounding/chamfering

G02.1 is modal (group 01) — it stays in effect until another code of the same group replaces it.

Programming format

G17 G2.1 (or G3.1) Xp_ Yp_ I_ J_ (_) F_ P_
Arc center coordinates
Arc ending point coordinates
G18 G2.1 (or G3.1) Zp_ Xp_ K_ I_ (_) F_ P_
G19 G2.1 (or G3.1) Yp_ Zp_ J_ K_ (_) F_ P_

Address words

P : Number of pitches (revolutions) (P can be omitted if equal to 0.)
 : Any axis other than circular interpolation axes (For helical cutting only)
F : Rate of feed along the tool path
G17; (XY-plane selection)
X, Y, and Z denote respective coordinate axes
G18; (ZX-plane selection)
or their corresponding parellel axes.
G19; (YZ-plane selection)
Y X Z
G03 G03 G03
G02 G02 G02
X Z Y
G17 (XY) plane G18 (ZX) plane G19 (YZ) plane
TEP024’

Notes & precautions

When a radius is designated, this command will be regarded as a
Use the TRACE display to check the tool path during spiral interpolation.

Source

Mazak PROGRAMMING MANUAL for EIA/ISO PROGRAM, manual H747PB0030E, section 6-7 Spiral Interpolation: G2.1, G3.1 (Option), p. 3-11, 6-14, 6-15, 6-16, 6-17, 6-18, 6-19, 6-20, 6-21, 6-22. Reference and explanation only — not a reproduction of the manual.

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