- [Instructor] A local coordinate system is required
at the center of the little end.
This is a cylindrical coordinate system,
which will be used to define the bearing loading.
I have the same SolidWorks model opened as before.
Click at the Model tab at the bottom of the screen here
to open up the geometry feature tree.
In the Features tab, choose Reference Geometry
and select Coordinate System.
The basic coordinate system of the model
is already positioned at the center of the little end,
so we can just use this coordinate system
in the selections window of the coordinate system form.
Open out the Feature tree in the graphics window
and click on the Origin.
The first dialogue box is now populated with .1 at origin.
Luckily, the X, Y, and zed axis directions we want
are aligned correctly with the basic coordinate system.
So click the checkbox on the form,
and the new coordinate system is created
at the center of the little end.
Rename the checkbox in the form and type in little end.
Let's check the sense of the new coordinate system.
The X axis points radially into the bearing surface.
The zed axis
is along the center line of the little end bearing.
This coordinate system will be mapped
to a cylindrical coordinate system;
the bearing load we will be creating shortly.
Save the model.
We save as baseline_4.
So the local coordinate system
for the bearing load is being created and named.