- [Narrator] Now we're going to go ahead
and create the initial primary slabs
for the top and bottom of this armrest.
This is scanned data that's been broken up
and normally when you get your scan data,
it's going to be in one giant scan
but here we've broken it up for you.
So you can go in and more easily
create the slabs that are necessary.
So we want to make sure our slabs geometrical set
is our in work object, which it is, it's underlined
and I'm going to sight down the Z axis.
Once I sight down the Z axis you'll see
the X-Y is my privilege plane.
So when I draw anything, it's going
to go right to that X-Y plane,
and I'm going to create a planar patch.
Two diagonal points, you'll notice that
I've created it much larger than the
initial scan that I'm going to match up to.
Once I have that, I'm going to create a distance analysis
between this planar patch and my top scan data.
You'll notice it's 540 millimeters away
which is fine for now, select okay.
And, at this point I'm just going to
copy the surface and paste another one in there.
'Cause I'm going to need two of these
because I'm going to generate another slab for the bottom
so may as well create both at the same time.
With my distance analysis active, I go in
and come to Fit to Geometry, what do I want to fit?
I'm going to pick that first surface,
that's the one with my distance analysis.
My target is going to be the top,
I can also pick this out of the screen if I want
and once I have those selected I hit fit.
You'll notice it takes that surface,
resizes it to the boundary, that is,
the size of that scan and pushes it on to the scan.
You'll also notice that I have a max
deviation of less than a quarter of a mil.
So often times we're looking to deviate
no more than a quarter of a mil,
maybe a half a mil in some cases.
In some cases you have to deviate a lot further
simply because of scan quality.
If you have deep tool marks or things that
shouldn't be there, wild points,
then of course you're going to have to deviate a
little bit more in order to get a smooth surface.
Now, I'm going to go to my Nv and increase that,
just click on it once, and I'm going to fit again.
And this time you'll see it gets even a little bit closer
and this is going to be a nice, smooth surface
going through this scanned data.
Once I have that right to where I want,
I'm going to select okay.
I'm going to double click on that analysis.
The source is going to be the unprojected surface
and the target is going to be, the bottom.
Select okay.
And once again, you'll see, I want to take surface three,
this is the one that I've just
attached my distance analysis to
and I'm going to do the same thing,
I'm going to Fit to Geometry, this,
to my target which is this bottom.
Do my fit, and I have a fairly substantial deviation
and for that I'm just going to increase the Nu value,
we'll go up to six and I'll take my Nv value
right mouse click, go down to two and fit once again.
And as you can see, I am less than
a tenth of a millimeter away from the scan.
So this is really good, I'm going to select okay
and just like that I have my top and bottom slabs.