銑削如圖所示圓弧指令應為()。
A. G90 G02 X30-0 Y0 R30.0 B. G90 G02 X30.0 Y0 R-30.0 C. G90 G02 X-30.0 Y0 R30.0 D. G90 G02 X30.0 Y0 R30.0 E. G90 G02 X-30.0 Y0 R-30.0
銑削如圖所示圓弧,指令應為()。
A. G90 G03 X20.0 Y40.0 I-30.0 J-10.0 F200 B. G90 G03 X20.0 Y40.0 I-10.0 J-30.0 F200 C. G91 G03 X-20.0 Y20.0 I-30.0 J-10.0 F200 D. G91 G03 X-20.0 Y20.0 I-10.0 J-30.0 F200 E. G90 G03 X20.0 Y40.0 I-30.0 J-30.0 F200
如圖示,銑圓弧時,指令應為()。
A.G90 G02 X20.0 Y70.0 R50.0 F200 B.G90 G02 X70.0 Y20.0 J-50.0 F200 C.G91 G02 X50.0 Y-50.0 R50.0 F200 D.G91 G02 X-50.0 Y50.0 J-50.0 F200 E.G90 G02 X20.0 Y70.0 J-50.0 F200