
B-63944EN/02 APPENDIX E.NOMOGRAPHS
- 1585 -
Explanation
-Analysis
The tool path shown in Fig. E.3 (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.)
q
V
V
X1
V
Y1
f
2
V
Y2
V
X2
f
2
V
Z
0
Fig. E.3 (b) Example of tool path
- Description of conditions and symbols
V
X1
=Vcosf
1
V
Y1
=Vsinf
1
V
X2
=Vcosf
2
V
Y2
=Vsinf
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
q : Corner angle
f
1
: Angle formed by specified path direction of preceding block and X-
axis
f
2
: Angle formed by specified path direction of following block and X-axis