- [Instructor] So now I wanna talk
about the edge blend function.
With edge blends,
you're basically picking the edge
that you want to apply a round to.
Now, as you go through the menu,
you'll notice that I have continuity on.
I could do tangent, I could do curvature.
So what this is telling me is
that the blend that I'm applying
isn't necessarily going to be round in nature.
It could have acceleration.
But the way it determines the size
is based off of a rolling ball.
So you can have a standard edge blends, which is tangent,
and then you can have curvature continuous edge blends.
Also, if I look under shape, I have circular and conic.
And again if I'm using a conical shape,
I'll have a row value to help determine
the shape of the blend.
But once again you can see here in the description,
the little picture that's popped up,
that the conic will have a peak,
or a flat spot, depending on what you've determined,
but the tangencies are determined
by a rolling-ball radius.
So we'll just leave it on circular.
And we'll leave the 30 millimeters in there for now.
And I'm gonna come in and pick an edge.
So once I pick my edge, I get this preview.
You'll notice that, depending upon where I place this,
I can have a blend that's much larger
than the space allowed,
but the system will try to fit it in.
It'll basically cliff edge or keep this edge,
and push the blend into that corner.
So it will allow you to build those kinda complex shapes,
if you need to hold that edge.
I'm gonna come in here, I'm gonna pick this edge as well.
You'll note that I can have multiple edges selected,
'cause it's edge blend.
I can pick as many edges as I want.
I can pick these edges as well.
Now you'll notice that if I do something
where the blends do overlap, it warns you.
The tangencies here across the boundaries
doesn't know what to do.
It's basically completely erasing this face,
and you can see this point and this point crisscross.
So this is why I'm getting that error message.
So in this case I would have to make this
a little bit smaller.
And as soon as I get it to a size that will allow
the blend to be applied,
those little warnings just disappear.
So now I have my edges picked.
I can continue to pick additional edges,
work my way around the part.
Select okay and apply my edge blend.
Now there's various options as I'm applying my edge blend.
I'm gonna talk about a couple of those.
I'm gonna double click on this.
I have the ability to go down under settings.
And you'll see here I have several, several options
as far as what's called patch mixed convexity corners.
So if I come in here and click on that,
you'll notice that these corners now,
instead of diving down, roll around the part.
This is nice if you're in high-stress locations.
Typically speaking,
points like this are what's called a stress riser.
And those stress risers
are where things like fractures happen.
So we try to keep away from that.
And the edge blend tool in NX,
if I pick two edges that come together at a point like that,
you have that option to turn on that convexity corner.
So you no longer have those little stress risers
that build up in those little corners.
One of those really nice things
about the NX blend functioning.
Really does a nice job on those.
So you can clean those types of corners up.
Other things that you can do with the blend function.
So if I come in here,
I'm just gonna go in and delete that.
I'm gonna go back in to edge blend.
I'm gonna pick this edge.
And you'll notice that, again, I can just drag this
and manipulate this any way that I see fit.
I can also apply a variable radius.
So if I come in and pick another point along this edge,
I wanna tell it, I'm gonna pick another point.
Just randomly pick one.
You'll notice that I drag it,
nothing spectacular happens
until I pick a second point.
Once I pick a second point,
now I can have a variable radius,
starting from fore and aft of the part.
And I can also control the location of that radius.
Where does it start, where does it end?
And in fact, you'll notice that I can have
as many of these as I want.
It's not very common that you're gonna pick point,
and point, and point along an edge.
You may have two or three points.
In certain instances, you may have formability issues,
or you may have issues with material
that needs to spread into corners,
and you need to basically open up a blend
as it wraps around a tight area.
This allows you to do that
pretty straightforward and pretty easily,
so as you can see, you can dynamically manipulate
that point pretty easily.
So it's not fixed.
Once you pick a point, it's easy to change it.
If you want to, you can also come over here.
If you right mouse click over one of these,
you can specify a specific point location.
Maybe you have a point on that edge.
Or you can remove it.
So if you have something that you've placed in there
that you don't want,
it's easy enough to go in there and remove it.
You'll also notice in these menus,
like the edge blend menu, you have a list.
And this will show you a listing of all of
the points, edges, that you have picked.
So in this case, if I have an edge, er, point here,
I apologize, on that edge, I can pick it
and just simply hit my X
to delete it,
and you'll see it removes it.
So, it's pretty easy to make changes to that edge blend.
I also have what's called a soft radius change,
and you'll notice that as the tangency.
Let me make this a little bit more extreme
so you can really see it.
You'll see I have a nice what's called a cubic transition,
or has a gentle transition.
If I take this all the way to the end,
and I go all the way to the end on this end,
you'll notice that it wants to drop in straight.
I can also turn on a soft radius change,
so even though it goes to the end point,
it will still give me that nice cubic transition.
So that's what this is for.
It's just how the tangent lines on that edge blend
basically change shape from one point to the next.
So edge blend, extremely powerful tool.
There's a lot that you can do with it.
You can play around with some of the settings,
make sure that you get the shape that you want,
depending on the corner.
So, you know, if I come in here
and wanna add a new set or another edge to this,
I can come in here.
It's still a variable.
Do my mix.
And just like that, I get that shape that I want.
So, again, you're picking edges.
And I didn't talk much about it in this lecture,
but you just wanna make sure
that you have your selection intent set up correctly.
So typically by default it's tangent edges.
It's gonna pick a, like, a race track effect,
gonna pick all tangent edges.
But there are instances where you maybe want
a single curve, or sharp edges, or whatever that may be.
So you have a lot of options for your selection intent.