- [Narrator] Now I need to build my stiffening ribs.
I'm going to use a similar technique
that I did with the bosses.
I'm going to insert a body
and...
I'm going to create a sketch.
I'll use the access system
that is defining the...
outermost or topmost boss here.
Just go to the XY plane
and select OK.
To define these, I'm just going to draw a few lines.
So I'll double-click on the line function
and come up,
and down,
and over.
To constrain this, you'll notice that when I drew this in,
I got these constraints down to the center point here
off of my sketch.
And I'm going to go ahead and show
these mounting points real quick.
So my mounting point three, way over here,
and just constrain to these points.
Last thing I need to do is constrain
the lengths of these ribs.
So to do so, I'm just going to go into my B-Side.
I'm going to show this boundary.
Remember, that boundary's off of the original surface
and it's a stable element,
so I just dimension back to the boundary itself.
Now, as I constrain this,
go from here
to here,
you just want it to hang off just a little bit.
Doesn't have to be too big.
Just a little bit.
This will make sure that, no matter what happens,
that rib will always run through the part.
Just walk my way around.
Now, once I get all these constrained,
I'm going to exit out of the sketch.
Picked the wrong thing there.
Just took a shift on me.
Swap location, go five.
Now that I have it constrained,
I'm going to exit out
and I'm going to make a pad.
I'm going to get a little warning.
It's going to come up and say hey, I am an open profile.
If I'm extruding a line or making a pad out of a line,
it's looking to make a volume.
Since it's an open profile, it can't.
So it gives me the option to turn on thick.
Once I turn on thick,
you'll see everything works out just fine.
I want this to be a neutral fiber.
I also want this to have the appropriate thickness.
I'm just going to use the part thickness.
Say equal enter.
Go to my parameters and pick my thickness.
Now, what do I want to go up to?
I'm going to reverse the direction,
and I'm just going to say up to plane,
I'll pick the XY plane off of the absolute,
and then I'm going to pick up to surface.
The surface that I want to go up to is my rib height.
You'll notice I can pick it right out of the tree.
Now that I have that in there,
I select OK.
And just like that, I have my ribs.
Next thing I'm going to do is go back into my...
core body,
make that my work object,
go in, do another remove,
select OK,
and with that, I just go back to my part body,
define in work object, and we have our ribs.
So, once again, all I did was remove the ribs
from the core body,
and then the core body removes
the material off of my cavity body.