- [Narrator] The next thing that we're going to add
to the enclosure is a series of vents on the top,
just to give some cooling air flow to your PCB.
Your project might not need this,
or maybe it needs more of them or different position or size
but you can modify these to suit your own needs.
So open the top part of the enclosure,
and let's start a sketch on the plane
that's parallel to this large upper face.
So for me, this is the front plane.
So start the sketch and then go Normal tool,
so we're looking down from above.
Then from the Sketch tab, choose the slot tool
and choose a straight slot.
And let's draw a slot roughly here,
go straight over and position it something like that.
Then select the Smart Dimension tool
and let's set the size of this.
So let's make it three millimeters high
and 30 millimeters long.
And then we can set the exact position from the origin.
So from the center of the slot,
let's make it 15 millimeters.
And then in this direction, let's go for 35 millimeters.
So now that sketch is fully defined.
Go to the Features tab,
and choose Extruded Cut.
And we can just do an Extrude Cut through all upwards
To change it from blind to through all,
and make sure you go in upwards and press OK.
And then we can rename the feature
as something like Vent Cuts.
So now we're going to pattern this feature along,
so we've got more of them.
And we could have just patterned the slot entities
from within the sketch using a linear sketch pattern.
But in general, it's a bit more resource efficient,
just to make a very simple sketch, and then
to pattern the feature using a linear pattern feature.
For a simple model like this,
it might not make much difference,
but if you get on some more complex models,
then this can really helps speed up your rebuild times.
So to pattern the feature, all we need to do
is select Linear Pattern from the Features tab.
It's up here near the middle.
The options on the left look quite complicated,
but you only need a few of them.
The first one we need is this top box,
the pattern direction.
So click in that box, and we just need to choose a direction
that the pattern will follow.
So let's choose this edge down here.
The next thing we need to do is set the spacing
and the number of instances.
So the spacing is this top one.
Let's set it to seven millimeters.
And then the number of instances is just the number of times
that the feature will be patterned.
So let's set this one to six.
Then all we need to do is select the feature
that we actually want to pattern.
So go down here to Features and Faces
and click in this Features to Pattern box
and it should turn blue like that.
Then just zoom in and select the feature.
So let's select that inside cut face.
And you can see from the preview,
we've now got six of those cuts.
Press OK, and those are added to the model.
Then rename that feature as something like Vent Pattern.
Now we can just save our part
and we can go back to the assembly.
And now you can see we've got these vents to cool the PCB.
So we can press Control + S to save the assembly.