- [Instructor] With my top corner blends in place,
I can begin framing in the necessary geometry
for my tertiary surfaces, these little ball corners
that are going to go in this corner and in this corner.
And for that, I'm going to go back
and use some of my original references that I used
to create these vertical blends.
I'll go ahead and show these two 3D curves.
I'm also going to show
the parallels and
I'll show those.
Once I have those shown, I can begin
creating that additional geometry, and for that
I'm going to start out with a projection.
Let me go ahead and make my curves geometrical,
set my work object.
I'm going to project once again
this 3D curve onto
this
surface.
What's my direction?
Again, if I look at my compass,
it's going to be in the Y.
Right mouse click, Y component.
Do the same thing with this curve.
And that gives me my initial
tertiary tangent curve.
Next I need to do
these curves on these ends,
and to do that I'm going to start out with intersect.
Double-click on my intersect.
I'm going to intersect the edge of this fillet
with this curve.
And I'm going to do the same thing on the opposite end.
The edge of this fillet with this parallel curve.
And now that I have those points,
I'm going to project those points to this upper edge.
So we'll just go into project, double-click on that,
change this from along a direction to normal.
This point
to
this edge.
Do the same thing here, this point
to this edge.
Oops, I picked the actual fillet, I just want the edge.
There we go.
Now that I have those points in place,
I'm just going to create a couple of lines from point to point.
Point one, point two, and they're going to sit
right on that surface.
I'll do the same thing, this side.
Point one to point two, sit right on that surface.
Select okay, cancel.
Now I need to frame out these curves,
and for that I'm going to use the GSD spline.
Just double-click on that.
And for this, we're going to pick this point,
tangency is this edge, to this point, tangency is this edge.
Geometry on support, this surface, that corner blend.
Do the same thing up here.
Point,
tangency, point,
tangency.
Now we can see that I just got to reverse those tangencies.
Geometry on support.
And just like that, you can start seeing
what those corner surfaces are going to look like.
Oops, I picked that edge accidentally.
I want to make sure I get that point.
There we go.
Geometry on support.
And one more.
I'll just reverse that for now.
Reverse that, geometry on support.
And select okay, and with that I have
both of those tertiary corners framed in.