- [Instructor] The Draft Analysis tool
is pretty much an indispensable tool
if you're doing any type of molding operation.
Whether it's injection molding, die casting,
or anything else that requires draft,
Draft Analysis tool is really going to help us out.
It's pretty straightforward and easy to use,
go ahead and click on Draft Analysis
under the Evaluate toolbar.
Click on that one.
Over here as far as the Direction of Pull
you can choose an individual face,
however I would prefer to choose one of the original planes.
And I'm going to choose the top plane here
and notice the direction of the pull
has shown up right here.
And it just kind of colors our model for us,
showing what has positive draft,
what has negative draft and what requires draft.
And our criteria is right over here, three degrees.
So if I change that value to two degrees,
nothing really changes, but if I go all the way down here
to zero degrees notice some of the stuff changes.
If I change it up to one degree,
I'm picking up a couple surfaces over here
that have less than one degree or somewhere in that range.
So you can evaluate your model,
what has more than three degrees for instance,
what has less than three degrees
and what has simply no draft and will probably
need to add some kind of draft feature to it in the future.
Generally what you want to see though is
let's say a half a degree of draft.
And that way we'll bring these other features in here.
So that all looks fairly good, this is fairly thin
so it should flex when it's coming out of the mold.
The only thing that's going to be requiring draft over here
is this yellow surface here that goes around
the outside of the part.
And we can probably add a little bit of draft
and it should be good to go.
We definitely want to have all the green
on one side of the part and all the red on the other side,
that way there's no undercuts or other problems.
But if there were, this would allow us to find those out.
So again, the Draft Analysis tool is
a pretty straightforward and easy tool to use.
It just kind of colors our model
and it allows us to easily see
if there's some blatent feature
or face or surface that is not drafted correctly
and we can easily fix that inside of SOLIDWORKS.