Problems with sketches. How to add lines?

[Anonymous]

The problem is the following (and I've looked on Google and didn't find a solution).

I draw a shape in Sketch mode, and then I realise I need to add some more segments to that sketch to change its form, but I have absolutely no idea on how to add lines to an existing sketch. All the info I find talks about curves and doesn't work with lines.

So what I tried is deleting some edges, and then trying to attach new lines to those edges, but that gives me 3D problems whereby the new lines are somewhere floating in space and not in the same plane as, nor connected to, the rest of the sketch.

 I added some screenshots. The first one contains my sketch with a few linesegments removed (blue lines), and the second one is my attempt at adding new line segments, resulting in segments floating in space. When I am in "2D" view they look ok, but when rotating the camera you see they have a completely different depth offset.

[mike.tessier]

Hi @Anonymous,

Thanks for posting and welcome to the Fusion community!

From your post, it sounds like you are creating a new sketch for these lines rather than editing the sketch that contains the other geometry. In the browser tree on the left side of the Fusion workspace, you should see a folder called "Sketches". If you expand that folder, the sketch that contains the should be visible there. Double clicking the relevant sketch should automatically edit the sketch, but you could also right-click the sketch in the browser and select "Edit Sketch" from the drop down menu. That should make it so your geometry is on the same plane.

If that doesn't pan out, could you record an Autodesk screencast of your workflow? A video is worth a million words in this case 🙂

I hope this helps! Please let me know if you have any questions or concerns - I am always happy to lend a hand!

Cheers,

[Anonymous · Accepted solution]

I think I have found the problem.

The problem (IMO) is that I created the sketch, then moved it in 3d along the depth axis before doing an extrusion. It seems the sketch needs to stay on the plane where it was created or all kind of weird stuff happens. So now I did:
- create sketch on a plane
- extrude to a 3d object
- move the 3d object in the right position

and now I can go back to the sketch, remove and add lines etc.