circle becomes unconstrained when trimming

[Anonymous]

When I trim part of a center diameter circle line turns blue indicating that the line is unconstrained. Is this normal or am I using wrong procedure?

[Beyondforce]

Hi @Anonymous,

You forgot to trim a line. As you can see in the picture, the white dot is belong to the line that you need to trim.

Cheers / Ben
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[TrippyLighting]

The question I have is why would you need to trim at all ?

While the sketch might look a little convoluted, often trimming and the necessary cleanup and re-contraint work that go along with it are not necessary at all.

You can select and extrude/revolve many regions at the same time and if they are adjacent they will all be joined into one body.

[Anonymous]

Thanks for the reply Ben,
That didn't seem to help.
It looks like I was being too fussy.  See TrippyLighting's reply
Ray

[Anonymous]

Thanks for the reply.  I'm fairly new at this and I have watched a lot of Lars Christensen YouTube videos.  In one of them he spends a lot of time talking about the importance of having fully constrained sketches.You mention that if the adjoining elements are constrained it's not necessary to constrain every element of a sketch.  Are there any other conditions where I don't have to bother with constraints?