& Construction
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Integrated BIM tools, including Revit, AutoCAD, and Civil 3D
& Manufacturing
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Professional CAD/CAM tools built on Inventor and AutoCAD
Integrated BIM tools, including Revit, AutoCAD, and Civil 3D
Professional CAD/CAM tools built on Inventor and AutoCAD
Transcript
00:00
So, this sharp edge between my two sets of surfaces is what we call the theoretical intersection,
00:07
and the surface fillet construction will respond to the angle between those two sets of surfaces.
00:14
So, if we just take a look at these patches here,
00:17
you can see that big change between the relative angle as it goes along,
00:22
and you can see that as the edge fades out towards the wheel arch.
00:27
So, if I now do a default radius fillet on here, I can just drag all those surfaces and build it.
00:35
You can see that the contact lines vary quite a lot to maintain that constant profile shape.
00:44
And if I have a quick look with the Diagnostic Shade, you can see the constancy of that circular profile.
00:53
And this is where we often choose one of these three widths definitions instead.
00:59
So, I'll just take the first one and build that.
01:02
And you can see that this is completely different; this now maintains a constant width between these contact lines,
01:09
and it achieves that by modifying the radius value as it goes along.
01:13
So, it's flattening out towards the outside edge there.
01:16
So, these three work in a similar fashion, and they've just got different underlying mathematics.
01:21
So, you can just take an experimentalist approach and just try them out and see if there's any difference.
01:26
So that gives us a slightly more even one.
01:28
Theoretical is often the most successful, but it's worth exploring which ones give you the best results.
01:36
And we can use that up at the top on our fillet here,
01:42
which if we have a closer look, you can see it's getting wider and narrower across those input surfaces.
01:49
So, if we do a Query At it on this one and see what a Width Definition does for us,
01:56
that gives us a much more consistent-looking fillet.
02:01
And if we have a look at the radius, there's nothing unpleasant happening there.
02:07
So finally, I just want to show you the two different chordal types that we can use, the chordal length or the tangent length.
02:15
And I've got one of each here, and I'll just switch to orthographic view so that we can compare them.
02:20
And here, we have the chordal, which takes our specified value of 80 and it measures it directly between the two contact lines.
02:27
Whereas the tangent length measures from the contact line out to the theoretical intersection.
02:36
So just experiment with those two options.
Video transcript
00:00
So, this sharp edge between my two sets of surfaces is what we call the theoretical intersection,
00:07
and the surface fillet construction will respond to the angle between those two sets of surfaces.
00:14
So, if we just take a look at these patches here,
00:17
you can see that big change between the relative angle as it goes along,
00:22
and you can see that as the edge fades out towards the wheel arch.
00:27
So, if I now do a default radius fillet on here, I can just drag all those surfaces and build it.
00:35
You can see that the contact lines vary quite a lot to maintain that constant profile shape.
00:44
And if I have a quick look with the Diagnostic Shade, you can see the constancy of that circular profile.
00:53
And this is where we often choose one of these three widths definitions instead.
00:59
So, I'll just take the first one and build that.
01:02
And you can see that this is completely different; this now maintains a constant width between these contact lines,
01:09
and it achieves that by modifying the radius value as it goes along.
01:13
So, it's flattening out towards the outside edge there.
01:16
So, these three work in a similar fashion, and they've just got different underlying mathematics.
01:21
So, you can just take an experimentalist approach and just try them out and see if there's any difference.
01:26
So that gives us a slightly more even one.
01:28
Theoretical is often the most successful, but it's worth exploring which ones give you the best results.
01:36
And we can use that up at the top on our fillet here,
01:42
which if we have a closer look, you can see it's getting wider and narrower across those input surfaces.
01:49
So, if we do a Query At it on this one and see what a Width Definition does for us,
01:56
that gives us a much more consistent-looking fillet.
02:01
And if we have a look at the radius, there's nothing unpleasant happening there.
02:07
So finally, I just want to show you the two different chordal types that we can use, the chordal length or the tangent length.
02:15
And I've got one of each here, and I'll just switch to orthographic view so that we can compare them.
02:20
And here, we have the chordal, which takes our specified value of 80 and it measures it directly between the two contact lines.
02:27
Whereas the tangent length measures from the contact line out to the theoretical intersection.
02:36
So just experiment with those two options.
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