SVG Offset Problem

[jacobcanady]

Hi everyone,

I've been having a lot of success using Fusion 360 with my desktop CNC machine.  I worked out some inlay stuff (see the CAM forum if curious) but now I'm having trouble with offsetting an imported SVG.  I typically offset my sketches .3mm to create the inlay.

I've watched videos and understand that you can only scale once you've stopped the sketch.  But I can only offset anything while the sketch is active.  That's not an issue.

My difficulty is when I offset anything from the SVG.  I can generate the offset with no difficulty, but Fusion won't recognize that offset as a new profile.  It still only recognizes the original SVG profile.  Even when I copy the offset and paste it in a new sketch, Fusion won't recognize it as a profile, even though when I run sketch checker, it tells me I have no open loops.

Am I missing something?

[masa.minohara · Accepted solution]

Hi @jacobcanady,

Thank you for posting! Just to check - do you mean the sketch is not closed after offsetting imported sketch and you are not able to Extrude it? (or any other commands that require closed profile) If that's the case, could you try the following steps? 

1. Delete the offset constraint

2. Move the offset sketch

3. Move the offset sketch back to the original position

I have created a screencast below. I don't have a SVG file that causes the issue right now so I am using simple geometry just to show how to perform the steps above.

If this doesn't help, could you share a public link to the design with me?

[jacobcanady]

Thanks @masa.minohara! That worked perfectly. Any particular reason this is the fix?

And to answer your questions, yes, when I offset the SVG sketch, I can't extrude it or use any function requiring a closed profile. But when I move the offset sketch out of place and then back into place, it gets recognized as a closed profile.

When I go to select the offset sketch, I have to select each individual line segment though, I can't select the whole profile, even after it has been moved. Is there a group function in Fusion that I'm not seeing?

[masa.minohara]

Hi @jacobcanady,

Thank you for your response. Glad that helped! Honestly I'm not sure why this can be worked around with the steps but it is a known issue logged as FUS-25947 in the internal system, and the development team is working on it.

Regarding how to select the whole profile, could you try double-clicking the offset sketch? This will allow you to select all the connected sketch geometry. Also, you can create a selection set in the right-click menu. You can use this selection set in the browser. I hope this helps!

[jacobcanady]

@masa.minohara Double clicking worked!  Thank you for the tip.  I'll also mess around with selection sets, very good to know!

[Anonymous]

I am having the same issue here.  I am trying to create a frame for a shape I have and I am being blocked here.

1. Import SVG

2. select SVG and offset line by .5 inch

3. exit sketch and try to use Extrude tool.  I can select the original SVG shape to extrude.  But I cannot select the offset line.  

Note: double clicking the offset line in sketch does select the whole thing, and I am able to make a selection set from that, but when I exit the sketch mode and try to use Extrude tool I cannot select the lines, either by double-clicking, or clicking on the selection set.  Nothing happens..

I'm new to Fusion so I feel like I might be missing something but its just getting annoying at this point.

[jacobcanady]

The second post worked for me. While you're still in sketch mode, select the offset line and move it. Then, move it back the same distance (back to the original location).

That allowed the offset line and original line to create a profile between the two lines that could be extruded. Does that make sense?