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本帖最后由 tortelee 于 2019-10-15 21:48 编辑
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楼上说的对,就是同一种坐标系,是基准坐标系,又叫datum coordinate system。( l- _2 X, ?' n# e" o5 R# v
基准坐标系是啥,我也不太懂。希望懂的能科普下概念。2 F( l1 P8 w$ x8 m
NX中如何创建基准坐标系?. w m% H9 ~3 A% u
1,Home tab->Feature group ->Datum SCYS
$ P' B" e2 ^& z8 K6 a: a% J5 j2,在Datum对话框中,在类型上,选择Offset CSYS
- X- ?# z* z K( q& r/ L3,在参考CSYS组中,从参考的表,选择已经存在的CSYS" a2 v& \! W+ h# u7 X% y
4,从grapphics图标中,选择额一个已经存在的datum CSYS7 R q4 m/ {0 k. d7 j0 X! w) ^
5,In the Offset from CSYS group, type the required translation and rotation parameters. Note | The translation and rotation parameters are stored with the datum CSYS feature and can be edited as expressions. | 3 i1 k& k: w: j! R
Click OK or Apply to create the datum CSYS. For this example, the following are used: X=75, Y=200, Z=50, Angle Y=25
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