Extruding from square to round

David Thomas

14 Oct, 2011 12:49 PM

I would use a lofted boss/base for this if you want to do it the simple, solid way. Lofted surface would be more appropriate for a more complex surface model, but here's how you loft a solid boss.

1. Step 1:

   Select a plane and create a sketch. In this case I am using the front plane. Draw/dimension your circle. Mine here is 5" diameter, centered at the origin. Exit sketch.
   

   

2. Step 2:

   Select the front plane again and click Insert-->Reference Geometry-->Plane. In the dialog box, click on distance and enter the distance that you want between your circle and square. Here I've chosen 6". Click OK.
   

   

3. Step 3:

   Select your new plane and create a sketch. Draw/dimension your square. Here I've made it 8" square, centered at the origin again. Exit sketch.
   

   

4. Step 4:

   Select Insert-->Boss/Base-->Loft. Right click an empty space on your model window and select Selection Manager.
   

   

5. Step 5:

   A small dialog box will open up. Hit Select Closed Loop.
   

   

6. Step 6:

   Select your square and click OK in the Selection Manager box.
   

   

7. Step 7:

   Select your circle. Click OK in the Selection Manager
   

   

8. Step 8:

   You will now see your loft preview (if you have Show Preview selected in the Loft dialog box). Hit Cancel in the Selection Manager.
   

   

9. Step 9:

   Click OK for the Loft.
   

   

10. Step 10:

    And there it is!