- [Instructor] Now that I have my die line,
the next critical input that I need
is my parting surface.
This is where the two halves
of the tool come apart at.
So the parting surface basically defines
the split between the core and the cavity.
And it's very important that this is
in the right spot.
Otherwise, you could end up with really weird
parting edges and things could take a turn
for the ugly if you're not cautious
about the parting line.
Now again, you may get this from styling,
you may get this from an engineering group,
or a tooling group, as well.
So you may have to talk to other people
for that input.
Here, we're going to make our own based off
of our initial slab.
So there's a couple ways
you can go about doing this.
One way would be to go into,
if I go into surface here,
and I could do an extend sheet,
pick the edge and extend this out.
And if I want to,
let me change my selection intent here,
we'll say tangent curves,
deselect and reselect everything.
Once I have this extended out,
I could take this and then offset the surface up,
which I'll do here in a moment,
but this is just one method.
So you may have to use several extends.
This is a nice, clean surface.
A lot of times, translated data isn't so pretty.
So it may, actually, be a little bit more work,
especially if it's a complex shape.
But here, as you can see,
just a simple little extension.
It just needs to be bigger than the actual part.
Or in this case, what I want to do is use a tool
that allows me to basically untrim the surface.
It's called enlarge.
Pick the surface, and you'll notice,
that a couple things happen.
First, it says edit a copy has been turned on.
And with that edit a copy,
it's going to basically generate a new surface
on top of the original.
And then it's going to allow me, if I want to,
to make it bigger.
I can turn on all and drag these little sliders
to make it bigger or smaller.
In this case, you can just leave it at defaults
at zero, if you want to.
Or if you need to make one side bigger
than another side, you can do that.
And then, because what the enlarge does,
is it basically untrims back
to the original base surface.
So here I have my original base surface.
Select OK.
Now that I have that enlarge surface in,
I'm just going to do an offset.
I want to offset this,
up into the part, go the appropriate distance,
and select OK.
And again, like everything else,
I want to go in here, name this.
This is my parting surface.
And then, once again, go into view,
edit object display, and change the color.
So my driving elements,
everything that I'm using, I want to make sure,
again, I color it based off of whatever standard,
methods, or your preferences are.
And just like that, I have my parting surface.
I can go ahead and clean up my screen
a little bit by hiding
the original enlarged surface.