Surfaces Exercise

For the first box, I used the rebuild command, but varied the amount of U and V points each time. 

To create the surface of the second box, I extracted the wireframe and drew my own curve. I then manipulated the surface by rebuilding it. 

On the third box surface I used a contour cut to create the points and then rebuilt it in the last step. 

For the fourth box I found that when I drew a polyline and lofted the curve, I could not extract surface points from it. So to change the surface again, I had to extract the wireframe and loft a curved line rather than a polyline. 

Lastly, the fifth box I experimented again with the rebuild command and tried to make less drastic changes. In the last step I used the loft command. Rebuilding seems to be the most useful command for me because it is simple to move the points and it can be used for large or small changes.