Attach example *.ipt file here that exhibits this behaivor.
I do not understand a reason for using Lock constraint (at least not in most cases).
I would not expect a beginner with little experience in geometry constraints to be using Locked - there is almost certainly a better way.
Attach your file here.
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I bet if you changed, in Application Options, under the sketch tab, see image....if you changed this setting to "Apply Driven dimension", that when you through those dims on that sketch, you would get a dim placed that is in parenthesis (driven dim).
I think an .ipt file containing the sketch geometry in question would be immensely helpful.
Thanks for the replies so far. Ise have used locking for 2 cases:
1) when a spline must be fixed;
2) if adding constraints to line overrides constraints for some other lines, so called last resort for me.
The method for checking driven dimension is not the case, I need to add driving dimension. I added one problematic part, it's a gasket. In the sketch, at rigth side is a vertical line. The lines position measured horizontally is not assigned, at least in my mind. But if i add the dimension to lenghten the gaskets "hair", the sketch will be overconstrained.
It's just one example, some more weird problems have occured before.Never seen such behaviuour in other CAD-programs.
Everything looked normal to me (missing to constraints).
You do not need Locked constraints to define a spline point - only an x and y dimension needed. (I did not change these.)
Also, I would use construction lines of equal length rather than repeating dimensions so that only one dimension needs to be changed if the design changes.
I will try to post an "improved" sketch technique later today.
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