This is a simple human shape:
I initiated a Sketch on the bottom, and Offset the outline inwards by 1mm. The offset should be creating a profile, but it is not...any ideas why?
Thanks!
Nick Kloski
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Can you attach your file here? The screenshot shows the offset was created. What do you expect it to look like? If you're expecting the offset to cut the 3d model, then you'll need to use the Extrude|Cut operation.
ETFrench
The file is attached to the original post...I expect the offset to be a selectable profile, but it is not creating a 1mm strip to select, just the entire bottom.
Nick Kloski
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Each of the black dots represent the end points of a spline/line/arc segment of the offset line which may or may not be coincident. Use the Extend and Trim tools to ensure they are coincident. Note: The Coincident constraint may work, but I haven't tried it.
ETFrench
Hi @nkloski,
As as @etfrench - using the extend tool is a quick way to see where the holes lie. With that being said - I think this is a bug, more specifically a precision issue. My guess is when the offset occurs, it exposes this precision issue. For instance, when I edit your first sketch and go to use the extend tool, I can see that there is indeed a small gap (although it registers as a closed profile in this sketch). When editing the second sketch on the same point, if I use the extend tool here, it will close the profile.
Edit: Just realized it is hard to see where this point is. It is on the bottom of the left arm.
Sketch 1:
Sketch 2:
Thanks,
Thanks @etfrench ...I used the coincident constraint...I even went back in a re-coincidentized everything, and still the profile is not acting as it should.
Nick Kloski
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Shouldn't a closed profile mean that the profile is closed? Offsetting a closed profile should not create an open profile, right?
Nick Kloski
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Hi,
I'm guessing that the real problem here is the curves of the body
You see when I tried to offset outside the body it worked just fine, but if I tried to offset too much I get a warning
But the funny thing is that when offsetting to the inside, it only creates a profile when the offset is nearly .6 mm or below, and that's why I'm guessing that the reason is the curves
Regards
Saeed
Saeed Hamza
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I think you have created a very strange model. This screencast shows another anomaly:
ETFrench
Argh! This is all very strange...all I was trying to do was copy the canvas (I am not sure of the attached canvas came through or not) using splines, arcs, and straight lines. I did half of the shape, and then mirrored it over. It does look like a precision error, through I am not sure how I could have modeled this differently to prevent that? Or why that is even a problem in the first place? Thanks, everyone for the assistance! 😞
Nick Kloski
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Hi,
An easy solution to get the offset without changing the shape is to create 2 offsets instead of one
Create one to the outside, then delete the offset constraint and create a new offset of the outer offset to the inside, it will work just fine
Regards
Saeed
Saeed Hamza
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@SaeedHamza Yep, that works! I wish I did not have to do that, but it is a perfect workaround, thanks!!
Nick Kloski
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I think there is a Fusion bug here. The problem area is near that point on the arm, but not exactly in the same location.
See this screencast:
notice as I move the line very slightly, the area that is wrong is in a very narrow region just to the left of that point. Very strange. Logged as FUS-33584
Jeff
