Overlapping sketch curves show unsymmetrical selection

[peterg7X5LU]

Hi,

I made a series of symmetrical sketch curves that overlap, but when I highlight or click on them, the selection is not symmetrical i.e. I cannot selecton smaller sections that I need to perform loft/extrusions later on in my timeline.

I did a screenprint to show what I mean - the highlighted area is not symmetrical when it should be.

This is what I am trying to achieve below - I need to Loft on the right side of the sketch too, but the above issue means I cannot select the areas I need.

You can see that when I try the same on the right side of the sketch with a new loft, I cannot select the same small area at each level.  Any thoughts please on how to resolve this?

[g-andresen]

Hi,

If you say what you want to achieve in the end and upload pictures of a real existing object and the file here, one could say something more specific about it.

Günther

[peterg7X5LU]

I've pasted a few more pictures and written what I am trying to achieve - a loft on both sides of the sketch, but cannot.

[g-andresen]

Hi,

Without using the crystal ball, help will hardly be possible. Why don't you post pictures of a (similar) real object and the file to here?

günther

[peterg7X5LU]

I have found out what is causing the problem.  If I zoom into the curves to the maximum possible, I can see that they are not closed.  But when I try to fit them together using Constraints, Extend tool etc, that doesn't work.

This curve was originally created by offsetting a previous curve by 5mm, and that curve itself was the originally the edge of a split face:

The outer curve is from the interior edge of the split face, and the inner curve is the curve that I created using the offset tool.  Is there a way I can resolve this, or is it a bug?

[peterg7X5LU]

My sketch curves are not closed, that is the cause of the problem.

I need to find a way to close them (see post with new picture)...

[g-andresen]

Hi,

---

@peterg7X5LU  schriieb:

  Is there a way I can resolve this, or is it a bug?

---

This is solvable.
But the screenshots and your  explanations unfortunately do not provide a basis for the solution.

Günther

[peterg7X5LU · Accepted solution]

I have got around it by mirroring the first loft on the left side to the right side.  At the end of the day, the symmetrical loft was what I wanted as a result anyway.

[peterg7X5LU]

Thanks for your comments, but I am not in the habit of invalidating a potential design patent or risking my intellectual property by posting my design file for all and sundry to see in what is a public forum.

[g-andresen]

Hi,

Help with design tasks is not possible without useful information.
Unfortunately, your screenshots did not provide a basis for an assessment.

günther