Rockwell-automation 8520-GUM 9/Series CNC Grinder Operation and Progra Manual de usuario Pagina 522

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Dresser/Wheel Radius Compensation
Chapter 15
15-34
If the last programmed move is circular (an arc), the dresser/wheel is
positioned at a right angle to a tangent line drawn from the end-point of
that circular move.
Figure 15.26
Dresser/Wheel Path for Exit Move Arc-to-Straight Line
θ
θ
θ
θ
End-point
End-point
End-point
End-point
0
≤θ≤90
90
≤θ≤180
180
≤θ≤270
270
≤θ≤360
Programmed path
Programmed path
Programmed path
Programmed
Path
G42 G41
G41
G42
G42
G41
G41
G42
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
θ
End-point
0
≤θ≤90
Programmed path
G41
G42
r
r
r
G39.1 (Circular Generated Block)G39 (Linear Generarated Blocks)
r
θ
End-point
270
≤θ≤360
Programmed path
G41
G42
r
r
r
G39.1 (Circular Generated Block)
G39 (Linear Generated Block)
12117-I
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