Sketching the Inlet Base Surfaces

Finally, we will sketch a rough four-sided surface on the flat base of the each air inlet. We will use zero breakpoints as we want to create a single patch surface (one with no internals). Don't try and fit the surface to match the boundaries, as we will extend the surface to cover the whole of the base, then trim it back using PS-Surfacer.

To create the inlet base surfaces:

1. Zoom in on the air inlets.
   
   
2. If you are not already in Surface Creation mode, click on the Create Surface button .
   
   
3. Change the settings in Curve and Surface Fitting dialog box as follows:
   • Number of T breakpoints (sides 1 and 3) = 0
     
     
   • Number of T breakpoints (sides 1 and 3) = 0

This will create a planar surface with no internals.

4. Click on the corner points as shown below to create a surface.

5. Click on the Shade Errors button , on the Draw toolbar. The surfaces should be perfectly green.
   
   
6. If there are any yellow or red areas, delete the surface and recreate it, making sure that you pick points away from the filleted corners.
   
   
7. Repeat the steps to create a surface on the base of the other inlet. Make sure that you pick the points in an anti-clockwise direction

You have now created all the four-cornered surfaces needed for the buggy model. Next we will look at the basic principles of surfacing.

Next:

Basic Principles of Surfacing