- [Instructor] Here I want to talk about the edge fillet
and chamfer functions.
Edge fillet and chamfer work off of edges from a solid.
You can also select faces, which I'll demonstrate,
and it will pick all of the adjacent edges
based off of that face.
So we'll go into the edge fillet.
Now, this is a dress up feature.
You need to have an existing solid
in order to create an edge fillet.
Without the solid in place, this feature is not available.
So here, pretty straightforward,
you select an edge you want to apply the fillet to,
specify the radius,
and do a preview to get a quick visualization
of the size of the radius,
and, if everything checks out,
simply select okay to apply the radius.
I'm going to double click on that to modify it
and I'm going to select additional edges.
As you can see, the system solves that edge fillet
at these corners appropriately.
Now, if I double click on that,
I can add additional edges once again to my edge fillet.
I'm just going to undo that, come back in,
and then this time, instead of picking an edge,
I'm going to pick a face.
I'll select this top face.
You'll notice that pad two, face one
is now selected,
and the entire surface of that top face
is going to be filleted.
So any free sharp edge on that face
is being selected to be filleted.
Again, I'll undo.
Other options within the edge filleting tool
are being able to specify a keep edge.
So in this instance, I'm going to apply a fillet,
and it's going to be a 50 millimeter radius.
You'll notice, if I turn this to the side,
this 50 millimeter radius is much larger
than the available space on this wall.
If I try to apply this, you're going to get a failure,
cannot initialize the operation.
What I can do, under the More button,
is specify an edge to keep.
By specifying an edge to keep, I'm telling the system
that I want this fillet to come down and rest on this edge.
Preview, so it's still putting in a 50 millimeter radius,
but it's fitting it into that space now.
This is another term, people will call this,
is a cliff edge, as well.
I'm going to double click on that to modify it.
Now, if I come in and specify my edge to keep,
and I make a modification to this radius
where it shrinks that value back down to a smaller radius
where it no longer needs that edge,
you'll see that there's no error or failure
or warning or anything.
It still keeps that edge.
Every once in a while,
you may need to do something like this
because there may be a modification that occurs
that creates a condition
in which that edge to keep is necessary.
Delete, now other options within this tool,
the edge filleting tool, I'm going to pick this corner here.
Actually, I'm going to pick this one, go to the bigger one.
And preview, select OK, good.
The system is very intelligent
with what's called propagation.
When I select this edge, what you'll notice is,
by default, I have a tangency propagation,
so it's going to automatically select all the edges
that are tangent along that chain.
So as you can see,
everything has been selected along that edge.
I'm going to double click on this.
I'll shrink that.
You can see, still, same thing,
different size wraps around that corner.
Now, I do have some options here.
We'll say minimal, preview,
and what you'll see end up happening
is that it stops short on that first vertex.
So yeah, it's running across it,
needs to, necessarily, to apply that fillet.
So you can select a single edge as a filleting entity
rather than an entire chain of edges, as you see fit.
So now, when I come in and apply this fillet,
I can see this is now tangent,
runs all the way down and around.
Several undos take me back out.
Now the chamfer function operates in a very similar fashion.
Select your edge, preview,
let me increase the size so we can actually see it,
and there's my chamfer.
So you'll notice that I have a length one and an angle.
So the arrow determines the direction of the length,
and the angle is based off of this face.
This is 45 degrees.
I also have length one, length two.
So now I can control each individual length
instead of having an actual angle.
I can also select multiple edges,
and, if need be, I can reverse,
and if I want, I can do a symmetric extent.
And those are my chamfers.
Now with each of those,
when you are creating your edge fillets and your chamfers,
you do want to be cautious based off of your initial inputs.
There are times when an input may actually cause failures.
So, as I'm creating a fillet, for instance,
and I come in and I select this edge, and I preview that,
let me make this a little bit bigger,
once again, I fall into a cliff edge scenario.
So if I pick this, double click,
and if I again make this smaller,
it'll still apply it with or without that cliff edge.
And this is where a reference
to being intelligent about your selections is important,
'cause if I come in here and now make this chamfer bigger,
technically, that fillet is going to move down
that edge row and could potentially cause failures later on.
So, just be wary, cautious about what's going on
with your chamfers and fillets as you apply them.
Now you'll also note, when I applied that chamfer,
it grew large enough to go beyond this face.
And the system is very intelligent,
it knows that it can grow beyond that face and not fail.
So there is some intelligence there,
there is some robustness to the tool,
but, again, be warned.
If you're not cautious,
you could create conditions which cause fillets to fail
pretty quick and easy, because of the nature of edges.
Edges move around a lot on our solids.
It's just the nature of solid design.