symmetry dimension

[tnguyen]

Hi. Anybody share your experience about applying symmetry dimension ?.
Let's say I have a cylinder origin Datum A. A square slot is lying on center line of Datum A. The print call out symmetry of slot to -A-.
First, I construct line1 from Cylinder, measure line2 and line3 from slot. Then I apply symmetry dimension by picking line2, line3 and line1. It did not work for me, even I changed all working planes.
This is first time I apply this dimension, so maybe I missed something. I really need from your help.
Thanks

[c_bearden]

Sounds like you should be constructing a Line by selecting Line2 and Line3 only. This will give you a symetrical Line and you will be able to output the location back to Datum-A

Hope that helps,
Doberman

[J Temmen]

I tried using the symetry dimension last week and no matter what I did I came up with a measured value of zero. I finally just took the axial deviation of my two lines about zero in the X axis , found the difference and created a generic feature with that value as its X axis and repotred that. Let me know though if you figure it out.

[KBearden]

Maybe a stupid question...But did you create 3D lines?
I would take edge points and then create 3D lines using the edge points.