- Continue to use the file you created
in the previous video,
or feel free to use the lessons file.
What we have just done is to create a single sketch
with multiple contours.
With a sketch selected in the Feature Manager,
I'll activate the Extrude Boss/Base command
from the Features tab on the command bar
to illustrate this better.
Since the sketch has multiple contours,
SolidWorks automatically activates the selected contour
selection box for us within the Boss-Extrude properties.
Now if I hover my mouse over the sketch
in the graphics view,
we can clearly see that we have a top, center,
and bottom contour.
The reason we created these multiple contours
within a single sketch is so we can use
the same sketch on multiple feature commands
and can speed up our modeling process.
Use this technique as often as it permits
within your design intent,
but be careful not to try and cram the entire design
into one or only a few sketches since this could be
more of a hindrance when needing
to make changes down the line.
A good modeler will be flexible
and combine the multiple strategies SolidWorks offers us.
Select the circle contour.
If you do have multiple selections
in these property selection boxes,
you can right-click an entry and delete it,
or right-click and clear all selections.
Make sure that you only have the circle contour selected.
We will be extruding in two directions
with different extrude depths in this feature.
For that reason, set Direction One's depth
to one millimeter.
Activate the Direction Two's options
by selecting this box,
and set the second direction's depth to 40 millimeters.
Enter, and enter again to complete the command.
We know have our first Boss-Extrude in the Feature Manager.
Clicking on the plus icon to the left
of the extruded feature icon,
expand the feature, and again select Sketch One
so we can reuse it for our next feature as well.
Do another Extrude Boss/Base,
and this time select both the top and bottom
arc contours in the graphics view.
We will extrude both contours in the same feature
since their extrusion depths will be identical.
Note that you do not have to hold the control key
when using properties multiple selection boxes.
Simply click on what you want to include.
For this time we will only be extruding
in one direction so we only need to set
Direction One's properties.
First reverse the extrude direction
by clicking on this icon with the two arrows.
For our design intent, we want the depth
of these contours to be the same depth as Direction Two
of the circle extrude.
Furthermore, if the extrude depth had to be changed,
we want to ensure that this extrusion's depth
will automatically update to the same depth.
To achieve this, let's select the Up to Surface
End Condition from the End Condition drop-down box.
With the Up to Surface End Condition selected,
the properties have now changed,
and SolidWorks is now asking us to select
a plane or face.
In the graphics view, position your mouse cursor
over the cylindrical face of the circle extruded.
Right mouse click and activate the Select Other command
from the right mouse options.
Using this tool gives us the ability to select
faces located behind other faces easily
without having to rotate our graphics view
which is very handy.
From the pop-up dialog, select the face,
or alternatively, select the face directly
in the graphics view.
Complete the extrude command by clicking
on one of the green okay icons.
Note that if I did not move my mouse,
the cursor feedback indicates that I can do
a right-click of the mouse to complete the command as well.
Again, very efficient.
Control-S to save your work,
and I'll see you in the next video.