Section view is projecting the entire length of the section line.... sometimes!

Section view is projecting the entire length of the section line.... sometimes!

Kzinty
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Message 1 of 10

Section view is projecting the entire length of the section line.... sometimes!

Kzinty
Advocate
Advocate

This is a quick basic part I made to demonstrate my problem but it worked correctly.

Kzinty_0-1712777850212.png

But in this model I get 2 different results on the same sheet.

Kzinty_1-1712778190309.png

The section D-D is correct. B-B is not correct in any way, the view must be in the directions of the arrows. A view does not look around corners.

 

I can share the model file but Autodesk hasn't figured out a way to share the drawings yet. I would really like the export of Fusion f3z files to include the drawing files.

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Message 2 of 10

Kzinty
Advocate
Advocate

Very bizarre. I deleted the section B-B and did it again. This time it worked.

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Message 3 of 10

ClintBrown3D
Autodesk
Autodesk

This appears to be working as expected. 

The results will differ when the section line is vertical/horizontal vs at a slight angle. 

When the section lines are at an angle, you are automatically creating an Aligned section view, which can show as “bigger” than the original views, as it “unrolls” itself as it projects the section. 

Vertical/Horizontal lines will most likely give the result you expect. 


Clint Brown
Senior Product Manager - Autodesk Fusion



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Message 4 of 10

HughesTooling
Consultant
Consultant

@Kzinty Take a look at this thread. In it I found as long as all the section line sections are either parallel and perpendicular you get a section the same length as the part. If one change in direction is not 90° the section line will be unrolled. One sort of exception to this is if you add 2 collinear lines (this actually makes sense as the 2 line are not at 90°).

 

If you  actually need an angled line in the section but don't want the section to unroll, create the section with all 90° angles. After the section's created editing the section lines will not change how the section's created. So unrolled will still be unrolled and projected will remain projected.

 

Mark

Mark Hughes
Owner, Hughes Tooling
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Message 5 of 10

HughesTooling
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@Kzinty wrote:

This is a quick basic part I made to demonstrate my problem but it worked correctly.

Kzinty_0-1712777850212.png

 


 

Did you create this section with all 90° sections then edit or did you create it with the one angled section? I just did a quick test to make sure what I'd written above was still correct and it does seem to be.

Here section B all 90° and section C with an angel.

Clipboard03.png

And editing the B section to an angled section does not affect the way the section's created.

Clipboard01.png

Mark Hughes
Owner, Hughes Tooling
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Message 6 of 10

Kzinty
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Advocate

Section views are ALWAYS to be viewed in the direction of the arrow. I learned this from my college Drafting teacher in 1988. The sample I created in the top photo was made with an angled section line and yet it worked correctly by not unrolling the section line.

Message 7 of 10

Kzinty
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Advocate

Now that I have voiced my distain for the changing standards of drafting.

I can see a usefulness to this feature however I believe it should be a check box in the command window to unwrap the section or keep a straight projection.

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Message 8 of 10

HughesTooling
Consultant
Consultant

@Kzinty wrote:

The sample I created in the top photo was made with an angled section line and yet it worked correctly by not unrolling the section line.


If you have a sample file you can share, next time can you share the link to the 2d drawing? I was going to look at the die example but it doesn't have the 2d drawing. When you share the link to the 2d drawing it will allow downloading the drawing and the designs it was created from.

 

Only thought on the die drawing is maybe you got a snap that ment one lines was not horizontal.

May be snapped to the circle quadrant so the horizontal line was a small amount off horizontal.

HughesTooling_0-1712850363190.png

 

The other example with the purposely angled section is more of a mystery, do you still have that design? Can you get the same result if you try again?

 

Mark Hughes
Owner, Hughes Tooling
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Message 9 of 10

Kzinty
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Advocate

https://a360.co/4aR1KDK

 

There are conditions for projecting an unwrapped section or not and what is displayed is also important. But 1 thing that never occurs is stretching the part to be longer than the actual parts. Look at page 147 in the attached zip file. There are conditions like ribs are not to be sectioned. I understand the difficulty in creating drawings that meet these standards by a program but we need to work in that direction. Standards are being forgotten because programmers are not drafters. Here is a portion of my text book from 1989.

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Message 10 of 10

Kzinty
Advocate
Advocate
That 1st sample was created with a angled line not a vertical line.
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