
A-79348E
Title
Draw
No.
61/88
page
FANUC Series 30i-MODEL A
Tool center point control
for 5-axis machining
Ed. Date Design Description
Date Jan.16.’04 Design. Apprv.
- Tool length offset value and setting in parameter No. 19666
A sum of the tool length offset value (to be set on the offset setting screen)
and the setting in parameter No. 19666 (including the positive or negative
sign) is assumed to be the distance between the tool center point and
controlled point. (The direction is determined by parameter Nos. 19697 to
No.19699.)
As shown in the right side of the figure below, when setting the distance
from the tool center point to tool holder tip point as the tool length offset
value, set the distance from the tool holder tip point to the controlled point in
parameter No. 19666.
As shown in the left side of the figure, when setting the distance from the
tool center point to datum plane as the tool length offset value, set the
distance from the datum plane to controlled point in parameter No. 19666.
Tool center point
Controlled point
Parameter
No. 19666
Datum plane
Parameter
No. 19666
Tool holder
Tool length
offset value
Setting
distance from
datum plane
Directly
setting tool
length
Tool length
offset value
Example:
Setting examples 1 and 2 below result in the same operation:
Setting example 1:
(Example of settings on the right side of the above figure)
Tool length offset value = 10.000
Parameter No.19666 = 5.000
Setting example 2:
(Example of settings on the left side of the above figure)
Tool length offset value = −15.000
Parameter No. 19666 = 30.000