So I have this sketch,
Sketch is fully defined. I simply want to mirror the shape about the horizontal line.
When "Mirror Entities" is used, the sketch becomes over-defined....
I don't get it.
I'm surprised the original sketch isn't overdefined. My guess is the R1.000 dim and the 1.000 width dim are causing a conflict when you mirror it. You should be able to do without one of them.
You cannot select a plane as your "mirror about" when mirroring sketch lines
got rid of one of them and added a relation to get it defined again.
works like a charm
The 4.500 dim is likely causing a problem as well. You probably need to delete some of the dimensions and just add extra relations instead.
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