- [Instructor] Now that we have the screw holes
and standoffs in both halves,
we can add screws into the model.
This isn't strictly necessary to make the model,
but it's a really good way to visualize
how everything fits together,
and to check that there aren't any problems.
Screws can easily be added
using the SolidWorks Toolbox,
and this is a vast library of different parts
built into SolidWorks.
It contains all sorts of different things,
from nuts and bolts to gears, bearings, and so on.
To add parts from the Toolbox,
open your Assembly,
and then click on this Design Library tab
on the right here.
And you should see the toolbox there.
If you don't see it,
it might just be turned off in your SolidWorks,
so if you don't see it there,
click on Tools at the top,
and then go down and click on Add-ins.
And from the list,
we're looking for SOLIDWORKS Toolbox Library.
Make sure you've got a check in the box next to it.
And if you put a check on the right here as well,
it just means next time you open SolidWorks,
the Toolbox will open as well.
If you don't see it in the list there at all,
it might be that you don't have it installed.
It doesn't come with every version of SolidWorks,
so if you don't have it,
you won't be able to use Toolbox parts,
but you can still add the screws using a STEP file,
and that will be covered in a separate video.
So assuming that you do have the Toolbox installed,
open that Design Library tab,
and then expand the Toolbox.
And all of these different folders
are standards from different countries around the world.
So, for example, we've got Australia, British,
German, and so on.
We're going to expand ANSI Metric.
This is one of the most common sets of standards
used all around the world.
So expand that folder,
and these are all the different parts that we can use.
Let's expand Bolts and Screws,
and then click on Machine Screws.
Down here are the specific types of screws
that we can add.
We're going to add a Pan Cross Head screw.
So just drag that into your model, and release.
Then over here on the left,
we can specify the size,
so let's set the size as M3, and set the length as 16,
and just press Okay at the top.
So now you can see we've got this ghosted screw
following the mouse around.
Let's rotate our model around.
And we can actually automatically mate these screws
into the screw holes.
So let's zoom in on a screw hole.
So to mate automatically, all you need to do
is hover the mouse over a circular edge of the hole,
and then move down onto the flat edge
where you want the screw to set, like so.
So to show you again, hover over the circular edge,
and then just move down onto the flat edge,
and then left-click to place the screw.
So let's add two more.
So hover over the circular edge,
move down onto the flat edge, and then left-click.
Then we'll just add one more here, like so.
For this fourth screw,
we're just going to move this original one,
just so we can see how to mate the screws manually.
So click on this red cross to stop placing new parts.
So this fourth screw here, let's left-click
and drag it around here,
and then let's just rotate it
to roughly the correct orientation.
So hold down the right mouse button,
just move it around so it's something like that,
so it's roughly lined up with the screw hole.
It doesn't have to be exact.
And now we're going to mate it manually.
So left-click on a circular face on the screw,
then hold down Control,
and then left-click on a circular face on the hole,
and then release Control, and from the menu that pops up,
let's add a concentric mate,
which is this one with two circles.
So now you might see that your screw has disappeared.
It's probably just hidden inside your model.
So to see it, you can just hover over this other half,
and press the Tab key to hide it.
So now you can see the bottom of the screw.
And then we can just drag it upwards so it's in view.
And then we can just re-show that part again,
by clicking on it in the Parts tree,
and pressing Show Components.
So now all we need to do is add the final mate.
Let's zoom in, select this flat edge of the hole,
and then rotate around, hold down Control,
and select the underside of the screw,
and then release Control, and from the menu that pops up,
let's add a coincident mate.
So now if we zoom out, we can see all of the screws
are mated correctly,
and we can see over here on the left
we got those four new screws in the Parts tree.
If you want to edit the size of any of them,
you can always just right-click on them,
and press Edit Toolbox Components.
Then you can change the size or the length
or anything like that.
If we now click on these parts
and make them semi-transparent,
we can see exactly how the screws work.
So they come in through the bottom half,
they go through the PCP,
and then they screw through into the top half.
So then we can just make those parts solid again,
and then we can press Control + S to save our assembly.