- [Instructor] To prepare for the 3-2-1 method
of applying a minimum constraint set,
we need to prepare the geometry by splitting surfaces.
At the same time, we'll also split surfaces
ready to apply bearing loads
at both the little end and the big end.
Now we pick the front surface of the little end region,
click on the Sketch tab,
click on Sketch to create a new sketch.
Hit the Spacebar, and let's choose little end view.
Click on the line icon,
hover over the little end
until we find the center point indicated.
Drag up a vertical line till it's clear of the con rod body.
Let's create a second line and drop that
clear of the body below.
Click OK, hit Spacebar, and let's go to the big end view.
Click the line icon again,
find that center point again, drag up a vertical line,
again, find the center point and drop a vertical line,
again, clear of the con rod body.
Click OK, click OK, hit the Spacebar,
and let's select standard view.
Now we select Smart Dimension.
We want to check the dimension
between the two vertical lines we just created.
Pick the first one and the second one.
It wants to confirm that we will make this dimension driven,
so we just acknowledge that.
We can see we've got a distance of 14 inches.
Click OK.
Now we select line again, and drop a vertical line
somewhere in the middle of the con rod.
Click OK, and now using Smart Dimension,
we can lay off the dimensions of that line.
Click the vertical line at this end, a new center line,
and let's make that dimension seven inches,
which positions us at the center line.
Click OK.
Let's close the sketch.
Go to Analysis Preparation tab, and choose Split Line.
Now the sketch here is active, but again, if it isn't,
just use the Geometry feature tree drop-down
to choose the correct sketch.
Now, for the surfaces,
a really good shortcut is go to Edit > Select All,
and in this context,
it's going to select all of the faces that we see.
It's a great shortcut, because it can very tedious
trying to find all of the right surfaces to split,
it's easy to miss some.
Those which are superfluous, such as this one in here,
they'll just be ignored.
We can check OK, and we can see the splits have been done.
Now, I want to create the local Coordinate Systems
we're going to use to set up the bearing loads later on.
Go to Features, select Reference Geometry,
and we want to create a Point.
The first point we want to create
is at the center of the little end.
We can use the Arc Center method.
Now we can pick any of the curves here at the little end,
so to pick this one, and we can click OK,
that's our first point created.
Now, we do the same thing again,
we go to Reference Geometry, want to create a Point,
and we use the Arc Center method.
Pick any curve here.
We see the preview of the point, click OK,
and we have our second point.
Now I want to create the two Coordinate Systems.
We'll come to Reference Geometry > Coordinate System,
and I'm going to pick the first point we created
at the little end.
Now the Coordinate System is already set up,
X, Y, and Z axis in the basic Coordinate System here.
We can click OK,
and we can see if we go to the little end view,
that it's aligned OK, X, Y, and Z, without X, Y, and Z.
I want to rename that Coordinate System, just click in here,
let's call that little end.
I want to do the same thing at the big end.
Let's select a good view, big end.
OK, we're going to choose Coordinate System.
Choose Point2, and we're aligned by default,
so if I check OK, we can see
we've got our X, Y, and Z aligned in the same way.
Let's name that as big end.
That's the work complete.
Let's save this model off.
I'll Save As,
and we're going to save it as con_rod_advanced_10.
In summary, in this video,
we created the splits for the bearing load at each end
and also the 3-2-1 constraints at the center.
We also set up local Coordinate Systems
for the bearing loads.