- [Narrator] Here I want to talk
about a tool called sweep along a guide.
Now under the surfacing tab, I go
into the surface gallery, here, under more,
and I'm going to specify sweep along guide.
Now the way this works is you have
the ability to pick one section,
and then one guide curve, come in,
select your guide, and as you can see,
it takes that section and sweeps it
along that guide curve.
Now you have the ability to obviously go around corners,
and I'm going to undo that, hide that,
and I'm gonna show sketch 002,
and I'm gonna go back into sweep along a guide,
pick my profile, pick my guide, and you can
go around sharp corners, not just filleted corners.
As you can see, it creates a nice, sharp corner.
Now there are a couple of limitations
with sweep along a guide.
Just to show you what those are,
let me go ahead and undo this.
Let me go ahead and hide that and show sketch 001_0.
If I try to do a sweep in a corner
that is too small for this to basically sweep around,
you'll notice it fails, right?
So basically, the length of this profile
is greater than the radius that it is trying to go around,
so what would end up happening is a crinkle.
You'd get a crinkle in that corner,
so it's basically an impossibility, it can't do that.
That's one of the limitations.
Another one of the limitations of the tool,
let me go ahead and hide that and show this,
is if I'm going in a total closed profile
as far as sweep around, I'm gonna go in here,
say sweep along guide, pick my section,
pick my guide, and you'll note that
it can't close off this back corner over here.
It's telling me that it's self-intersecting.
The reason that I get a self-intersecting
is right at that corner it's zero thickness
solid at that corner, so it just
gives you a little warning.
You can still use this, but you'll notice
I get a little indicator saying, hey,
there may be something up with the sweep.
Though one thing it can't do, as you can see,
is it can't close off that corner.
Just to let you know, so you understand
exactly what the sweep along a guide
tool is capable of doing.
Let me undo that, let me go ahead and hide you.
I'm gonna come back in, I'm gonna show this.
One more thing of note, when you are doing
a sweep along a guide, you'll notice
I have the ability to tell this sweep
that I want it, instead of a solid, I can do a sheet.
So now, when I create that, it creates
an actual surface instead of a solid.
If I double-click on that and I want to change it
back to solid, that's not a problem.
You can see it does make a solid.
And again, if this is an open profile,
open profiles, by nature, will always create
a sheet body or surface unless you go back
into the sweep, unless I turn on one of the offsets.
So if I do use an offset on an open profile,
you'll get a solid body as well,
so it doesn't really matter what you
have set as far as a body type.