Fanuc Power Mate i-D/H Operator Manual

D. NOMOGRAPHS
B–63174EN/03
APPENDIX
590
The tool path shown in Fig.D.1 (b) is analyzed based on the following
conditions:
Feedrate is constant at both blocks before and after cornering.
The controller has a buffer register. (The error differs with the reading
speed of the tape reader, number of characters of the next block, etc.)
θ
V
V
X1
V
Y1
φ
1
V
Y2
V
X2
φ
2
V
Z
X
0
Fig.D.1 (b) Example of tool path
V
X1
V cos f
1
V
Y1
V sin f
1
V
X2
V cos f
2
V
Y2
V sin f
2
V : Feedrate at both blocks before and after cornering
V
X1
: X–axis component of feedrate of preceding block
V
Y1
: Y–axis component of feedrate of preceding block
V
X2
: X–axis component of feedrate of following block
V
Y2
: Y–axis component of feedrate of following block
θ : Corner angle
ø
1
: Angle formed by specified path direction of preceding block
and X–axis
ø
2
: Angle formed by specified path direction of following block
and X–axis
Analysis
Description of conditions
and symbols

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