- [Instructor] So now I wanna talk about
the triad and the WCS.
As you can see, the triad,
it's in the lower left corner.
Again, this always points to XYZ absolute coordinate.
It basically is just a representation
to show you how everything is oriented true to the world.
Now we have what's called a work coordinates system,
N and X, and we don't see it on the screen right now.
So I'm gonna go and turn it on.
And by default in a lot of places
you may not have it pop up,
so you won't be able to see it.
But it's there, it's always there
and it's something that it's very important
you understand what it is,
but you may not directly use it.
So to go turn it on,
I'm gonna go under tools,
and under the more gallery
you'll see I have all these icons for the WCS,
or Work Coordinates System.
And I'm gonna turn on the display.
Currently, the Work Coordinates System
is oriented to my absolute, my triad.
You can see that x, y, z, all align.
If I double click on this,
you'll notice that I can change this;
change the orientation, where it's located,
snap angle is just how much it takes
for this thing to snap into the next position.
So I have to move it at least 45 degrees
before it snaps to that new location.
If I change this to say five degrees,
now when I change the angle,
you'll notice the snapping increment is much less,
so it snaps.
And same thing for the distance.
I have a distance snap as well.
I can come over here and say,
I want this to snap to every ten,
in this case, millimeters,
based off of the size of the file, and snap.
Now, with this work coordinate system,
you're going to use a dynamic work coordinate system
when you create a sketch,
when you move components around in an assembly
and it's always there,
but it's going to be defined
based off of your inputs.
So when I go into a sketch,
you're going to be defining a plane to draw on.
By default, if you don't specify a plane,
everything goes to the xy.
And it's very important that you understand
that four coordinate system is driving geometry.
You'll see that in pulldowns,
in various locations, some of the tools
reference the WCS or it'll reference a csys..
A csys is basically a saved location
of the work coordinate system.
You may have multiple datum csys saved on your screen
and you can always go back and reference that datum csys.
Whereas the work coordinate system, once again,
is just simply a working coordinate system.
If I don't pick anything, it'll, by default,
go to that work coordinate system.
Now, once I get it into position that I want,
I just simply click the middle mouse button.
The moment that I click the middle mouse button
it saves that location.
By default, in most people's modeling applications
when they come in, that's typically just simply turned off.
You can see here,
the display is turned on because I turned it on.
A lot of times within the assemblies application,
when you create a new assembly or you're bringing data in
it's going to display a WCS for you.
Again, it's a work coordinate system.
It's going to be based off of the component
that you're bringing in.
So just something to be aware of.
Again, are you going to directly manipulate it in NX12,
in the newer product?
Probably not.
When you get into...
Say you're working with parts
that were made five years ago, six years ago,
seven years ago, ten years ago,
then chances are you're going to have to understand
how to manipulate that WCS.