
1. General
Programming for creating holes, pockets, and other figures in a datum plane tilted
with respect to the workpiece would be easy if commands can be specified in a
coordinate system fixed to this plane (called a feature coordinate system,
hereinafter). This function enables commands to be specified in the feature
coordinate system. The feature coordinate system is defined in the workpiece
coordinate system.
For explanations about the relationship between the feature coordinate system and
workpiece coordinate system, see Fig.1 (a).
Feature coordinate
system
(G68.2)
Machine coordinate system
Workpiece
coordinate system
(G54)
Fig.1 (a) Feature coordinate system
The G68.2 command causes the programming coordinate system to switch to the
feature coordinate system. The commands in all subsequent blocks are assumed to
be specified in the feature coordinate system until G69 appears.
If G68.2 specifies the relationship between the feature coordinate system and the
workpiece coordinate system, G53.1 automatically controls the tool axis direction to
the +Z direction of the feature coordinate system even if no angle is specified for the
rotation axis. (See Fig.1 (c).)
For explanations about the tool axis direction, see Fig.1(b).
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A-78712E
Edit
Apprv. Desig.
Sheet
Title
Draw
No.
Date
Design
Description
Date
FANUC Series 16i –MB, 18i –MB/MB5
TILTED WORKING PLANE COMMAND
Specifications
Jul.01.2001
02 Mar.22.2002
T.Motida All revision H.Kouzai
Sheet
T.Mochida
H.Kouzai
03 Nov.15.2002
M.Tanaka
③
part changed H.Kouzai
04 Mar.25.2003
All revision