selecting geometry from another sketch not working

[kryofrk]

I feel like I've been able to do this is the past, seems really really basic. Am I doing something wrong? The only thing I changed recently (because of the relentless warnings and errors) was turning off parametric modelling. My modelling is very basic, and I have yet to start a project and finish it without running into these problems, yes this is "free", but I plan/hope to eventually make money using your product, but man, it's seeming less and less likely as I have yet to establish a consistent workflow due to all these issues. What am I missing?

[TrippyLighting]

Post your designs as soon as you run into these errors so we can provide guidance. This forum is very responsive and you usually receive feedback the same day.

To copy sketch objects from one sketch into another:

1. edit the sketch you want to copy from
2. select the sketch objects you want to copy
3. and either press ctrl-C (command-V on mac) or right click and elect copy
4. click stop sketch to stop editing that sketch,
5. select the sketch into which you want to copy the objects (or create a new sketch) and edit the sketch
6. right-click and paste the objects into the sketch.

[kryofrk]

or if this is not possible, is there an easier to cut and paste specific geometry into new sketches? Besides the current convoluted:
- copying the selected geometry
- creating a new sketch
- pasting the geometry
- going back to the original geometry
- then finally deleting the redundant geomtry?

Because in order to create the required 3d object, it's way easier to have the separate sketch geometry. I just want a repeatable method that doesn't involve running around in circles for just 3 lines. Any suggestions are more than welcome! Thank you.

[TrippyLighting]

Perhaps post what you are trying to achieve, preferably with a screencast. That usually helps very quickly to identify and resolve problems. My current assumption is that you are trying to do something that is not even necessary and can be easily achieved without having to copy sketch objects.

[kryofrk]

I didn't see the insert button for the screencast

[kryofrk]

here's the result I was looking for:

[kryofrk]

am I really being that unreasonable to not expect to do 8-9 extra steps to do this? 

1. edit the sketch you want to copy from
2. select the sketch objects you want to copy
3. and either press ctrl-C (command-V on mac) or right click and elect copy
4. click stop sketch to stop editing that sketch,
5. select the sketch into which you want to copy the objects (or create a new sketch) and edit the sketch
6. right-click and paste the objects into the sketch.
7. click stop sketch
8. edit original sketch
9. delete original geometry

is there a way to just "move" that geometry to an overlayed sketch? am I using sketches wrong? If I used selection sets instead, that means if I drastically alter a sketch (which in design is common), I then would have to go through a manually reselect the new or altered geometry amongst other geometry, rather than make a box over exactly what I want to select if it was in it's own sketch. Should I request a new feature (being able to select other sketch geometry as a reference for creating new geometry)? Doing this with lines works, but annoying creates constructions points and lines that I have to go back and delete. Is this a snap problem?

[TrippyLighting]

If you wanted to have have these arc objects in your other sketch, why did you not draw them there ?

What still is missing from your explanation is why you want to do this.

[kryofrk]

Rewatch the first video, I can't create the arc in the second sketch (unless want to recreate the the reference lines, which is effectively the same workflow circular behavior.

There are two sketches, one with the filleted corner is the 1st one. The second one where where I want the arc objects.

I want the arc in it's own sketch for reasons I previously stated. It is easy to create them in the 1st sketch because the program recognizes the lines in order to create a 2 tangent/radius circle. but the copying is silly amount of extra steps, even adding a cut (instead of copy would shorten that workflow) , but still doesn't make sense when you compare the snaps when just creating a line.

[TrippyLighting]

OK, it seem you are misunderstanding the question.

What 3D object is it that you want to design that requires you do do the steps you do ?

Copying objects between sketches can sometimes be necessary but it is not that often that it's needed.

[kryofrk]

[davebYYPCU]

For your result, you don't need two sketches, draw all in 1st sketch, and when extruding, select both profiles for the first layer, 

new extrude and select only outside corner profile, for the second layer.

As was being suggested, the copy routine is not required as 2 sketches is making it hard on yourself.

[TrippyLighting]

This is a workflow issue possibly based on a misunderstanding.

Under normal circumstances even when creating the second sketch on a face of the existing body the outline of that body should have been auto projected into the new sketch so the additional arcs could have referenced those projected lines.

There are only ways  that his does not work:

1. The sketch was not created on a face of the existing body so there was nothing auto-projected. The sketch was instead created on an offset construction plane and thus sketch elements from the first sketch could not be directly referenced. Or, of course, when the second sketch is created there is not body yet.
2. The sketch was created on a face of the existing body, but the auto projected elements were deleted.

I can demonstrate in a screencast if needed.

[kryofrk]

I'm trying to keep them separate because there are a lot more arcs in that layer, and creating a 3d object from them, when they are all in the same sketch, requires a similar number of steps to extrude, compared to when copying and pasting in another sketch.

well. guess I'll just shut my mouth, and suck it up and just be a clicking fool like the rest. Just thought there might have been a more efficient way.

Thanks everyone for your input, patience, and time!

[kryofrk]

I just tried this (creating/extuding the basic face), to then which I created the second sketch, and the 2 tangent radius circle worked. Why doesn't this work when you select the same plan for the 2 sketches? I assume because it's not snapping to the line, but to the 3d object? Which is a problem because trim doesn't work from the Body.

Why would I want to create a 3d object before finishing the design? because the design, and therefore the basic 3d object, could change before finishing laying out the other aspects of it. Since when you change the sketch the body is based off of, the body then needs to be re-extruded, therefore adding steps. Shouldn't creating a 3d body be last? 

I think I'll just try to submit a bug or new feature report. I can be overly critical sometimes so I'll go chill and pour myself a beer as well 🙂

[TrippyLighting]

The bug is in your understanding of parametric design 😉

3D geometry is being build in steps. You create a sketch and create some 3D geometry from that.

You reference a face or other features of the 3D geometry to create another sketch or a construction plane and then a sketch on that and create more 3D geometry from that sketch. This is how it works.

Sometimes you back yourself into a corner and have to start over. That is normal and only experience with these tool will allow you to look further ahead and guesstimate what the consequences will be. This also is how this works. There are no shortcuts here 😉

There is an Autodesk Fusion 360 YouTube Channel that I would warmly recommend for chilling with a beer or two! 

[kryofrk]

I get that. I've been slowly adapting from R14, s-l-o-w-l-y.

I just don't get why the type of thing I was trying to do works fine when creating lines and not with circles. Seems.... inconsistent to me.

Thank you TrippyL for all your help!

[davebYYPCU]

That's it exactly, step by step, Fusion has a different personality,

drawing all all the sketches first, without referencing bodies - is about as hard as you could make it for yourself.

you beat me to it, Trippy

[davebYYPCU]

Your last screencast was not there while I was typing, 

Now you have, "circles don't trim" without being broken into sections first.

Try to forget 2d and imagine 3D from the start, 

One sketch would be easy to get done, then 2 extrudes was always going to happen.

If you end result is not just these examples then other ways may be needed.

Browny

[TrippyLighting]

Actually that trimming behavior does seem if not buggy then at least inconsistent to me.

I've drawn a similar sketch and the big circle would trim nicely at the points of tangency to the smaller circles. Just the small circles don't.

It's easy to work around, just draw some lines between the circles center points, but still...