
A-78640E
Sheet
Title
Draw
No.
04 Feb.08.’03 Part of (4) is added or modified. Addition of 2.16.5
03 Jul.02.’02 A. Fukumoto Part of (3) is added or modified. T.Endo
02 May.13.’02 A. Fukumoto Addition of Tool Radius control for 5-axis machining etc T.Endo
Ed. Date Design Description
Date Jan.25.’02 Desig. A.Fukumoto Apprv. T.Endo
FANUC Series 16i /18i -TB
Specifications of AI High-Precision Contour Control /
I Nano High-Precision Contour control
90/190
2.20 Helical Interpolation B
2.20.1 Outline
Helical interpolation B allows the tool to move in helically. This can be done by
specifying the circular interpolation command together with up to four axes.
This function is an additional option.
2.20.2 Format
2.20.3 Description
The command format for helical interpolation B consists of the command format
for normal helical interpolation and move commands for two axes.
2.20.4 Limitation
• Cutter compensation is applied only for a circular arc.
• Tool offset and tool length compensation cannot be used in a block in which a
helical cutting is commanded.
Synchronously with arc of XpYp plane
G02 I_ J_
G17 Xp_ Yp_ α_ β_ γ_ δ_ F_ ;
G03 R_
Synchronously with arc of ZpXp plane
G02 K_ I_
G18 Zp_ Xp_ α_ β_ γ_ δ_ F_ ;
G03 R_
Synchronously with arc of YpZp plane
G02 J_ K_
G19 Yp_ Zp_ α_ β_ γ_ δ_ F_ ;
G03 R_
α, β, γ, δ,
: Arbitary axes other than the axes for circular interpolation