- [Instructor] In the surface tab,
there's a tool called section.
Section surface has several options in it.
There's cubic surfaces,
conic, circular,
the one that I want to get into is what's called cubic.
Under cubic, there is a tool called fillet bridge.
You can see there's a couple of them in there.
But this is the most powerful bridge tool that NX has.
So I really want to cover this one.
There are several bridge tools,
but if you're going to get into using them,
I highly recommend the fillet bridge.
And the way this works is,
you pick a start guide and an end guide.
So I'll pick this edge as my start guide,
it can be a chain.
Go to end guide.
Slope control,
what face is it going to be?
Tangent two on the start.
What face is it going to be?
Tangent two on the end.
And it creates a bridge.
The section method is set to continuity,
I'm going to leave it at continuity.
And for the continuities,
you'll see I have G2 set.
So this is giving me a very smooth transition
across the boundary.
If I click on this, you'll see I can go to tangent,
and I also can go to G3 flow.
So this is giving me that rate of curvature
with that acceleration across that boundary.
So it gives me an extremely smooth condition
across that boundary.
Again, G3 is typically used for big, broad, flat surfaces,
external panels that are highly glossed,
that type of thing.
I'm going to go back to G2,
G2 and I also have some shape control.
So I can adjust the depth of the bridge
and I can change the skew of the bridge.
So if I change the depth a little bit,
give it a little bit more of a peak,
you can see I can move that skew across back and forth
between those two boundaries.
You also have options
for how the surface flows off the boundary edges.
We have not specified, there's perpendicular,
you can see there's a slight shape change,
end flow, perpendicular
and then I can also do ISO lines.
In this case, I'm going into U,
so it's giving me this really odd shape.
I'll go V, and it gives me something a little bit cleaner.
And it's based off of the UV directions
of each of those surfaces.
So you may have to play around with this,
to get the shape that you want,
across those boundary edges.
You can also do things with the spine,
or by a curve
and if you have a theoretical curve,
or if you have an intersection curve between two surfaces,
this is a good tool to make sure that
it aligns perpendicular to that theoretical curve.
So there's a lot of options inside of this one tool,
within section surface
and within section surface,
there's an incredible amount of tools as well.
So get familiar with this fillet bridge
and you can do an incredible amount of work,
just with this tool.