preo nc 加工出来的工件光洁问题

加工出来不光

各位大哥，是不是后处理有问题？还是公差呢？把公改为0.001还是一样，机床走起来不平稳，会抖动，像走点一样
4.0的加工文件

[ 本帖最后由 qiu13726068488 于 2009-1-8 14:57 编辑 ]

好像了有很多Z的

%
(Date:01/08/09 Time:15:07:24)
G0 G17 G40 G49 G80 G90
G91 G28 Z0.
( / DATE TIME : 08-JAN-09 15:07:01)
( / CUTTER DIAMETER, 20.000, CORNER RADIUS, 0.800, SIDE ANGLE, 0.0\)
(00)
( / TOOL_MATERIAL : 飞刀-D20R0_8)
S2500 M3
G54 G90 X0. Y0.
G0 X-133.576 Y0.
G43 Z20. H2 M8
Z.5
G1 Z-.15 F200.
X-124.378 Y-7.463 F2000.
G3 X-115.98 Y-8.683 R6.001
X-113.729 Y-5.251 R6.001
G1 X-113.729 Y-5.251 Z-.15
X-113.611 Y-4.765
X-113.614
X-113.159 Y-2.903
X-113.159 Y-2.903 Z-.15
G2 X-111.142 Y4.505 R180.112
G1 X-111.142 Y4.505 Z-.15
G2 X-109.64 Y9.334 R176.627
G1 X-109.64 Y9.334 Z-.15
G2 X-108.011 Y14.083 R173.814