It will help to understand the use of rib tool.

1. Assignment #2
Registration No. 1395/FET/BSEE/F10
Name : Shehbaz Ali
Submission date : 13-10-2011
Teacher : Adeel Jadoon
Section : “ D”

2. Click file menu, choose file item or use the icon from the
upper tool bar.
Choose sketcher from the right tool bar.
Select the front plane, reference plane is right and
orientation plane is right plane.
Choose the circular tool.
Bring your cursor to the sketch plane, press left button
at the origin and draw a circle of diameter 300px.
Select done from the right toolbar.
Now make this 2-D sketch into 3-D, click extrude tool
and set the depth of circle or thickness of circle
(e .g 50px), then select done to get the shape.
Select extrude tool, click on placement from the upper
toolbar ,define plane on which you want to draw another
sketch, select surface of circle as your plane.
Select the circular tool, again draw a circle of less
diameter than the first (e .g 200px).
Click done to get the 3-D shape, now set the depth of
this circle or thickness of circle.
Select the rib tool from the right toolbar, press the
reference from upper toolbar ,select the reference
where you want to make the sketch for rib, now select
the edge reference ,between these references you will
draw the sketch.
Draw sketch (draw line from upper disc to lower disc),
click done, set the thickness (e .g 5px).
Select the pattern by click right click from your mouse
button on the rib tool in the tree, select the axis instead

3. of dimension from upper toolbar, select the axis around
which you want to draw the same rib, set the angle and
number of rib, click done, you will see the number of rib
around that axis.