Use surfaces to split bodies and faces.
In this video, we'll you split body with
the surface and split face with a surface.
In Fusion 360, we want to carry on with our complex box.
We're going to start by rolling the end
of the features before the shell,
and we want to expand
our Bodies folder and show our surface body.
We're going to rotate it around slightly so we can see
all three faces that belong to the surface.
Navigate to "SURFACE" tools and select "Offset".
We're going to select all three faces of the surface,
and we're going to bring it down
a distance of 30 millimeters.
Notice that when we do this,
the surface does not extend through the solid body.
We're going to select "OK",
and navigate back to our "SOLID" tools and we want
to take a look at two other split options,
split face and split body.
If we select "Split Face", first,
we need to determine which faces we want to split.
We want to split all the way
around the outside of the part,
then we need to rotate it and select
every face that we want to split.
Then we can select our splitting tool.
To do this, I'm going to navigate back to our home view,
and I'm going to select "Body3"
that's inside of my browser.
There's an option to extend the splitting tool,
which will allow us to extend out pass
that front edge where the surface doesn't intersect.
We say "OK",
note that we still have one solid body.
But now we've split the solid body on
the outside only in the case of its faces.
I'm going to select and delete
this split face and take a look at split bodies.
For split body, instead of selecting individual faces,
we'll have to select a solid body.
With the splitting tool, once again,
I'll select the "Body3" surface body,
and I'll allow it to extend
the splitting tool and say "OK".
If we take a look in our browser,
we now have Body1 and Body4.
These are two separate solid bodies.
If I hide my surfaces and I hide Body1,
I'm left simply with this top body.
Next, I want to add a fill-it.
In this case, I'll add a
15 millimeter fill-it to the bottom edge and say "OK".
But what happens when we roll back past our shell?
The shell was applied to
the original bottom face of the original body.
If we take a look at this and we turn on our analysis,
we can see what we've created is
a solid body on top
and a thin wall solid body on the bottom.
Using split bodies means
that the original face that we used for
our shell was on the lower portion of the split body.
Keep in mind when you're using tools
like split body and split face,
and you start to reorganize the timeline,
make sure you understand the implications of
how those tools are going to be rebuilt.
In the case of using something like a shell,
we would want to make sure that
we modify the shell feature,
and instead of selecting
the faces or bodies that we want to shell,
we would select the entire body from the browser,
say "OK", and now we've
shelled just the inside of that body.
If we turn off our section analysis,
note that none of the external faces
are open because we selected
the entire body as the shell.
If you want to keep that upper body as the shell,
you will need to rebuild
some of the features in the timeline.
For us, however, let's go ahead and
navigate back to our home view,
and let's make sure that we save this before moving on.