MDF ribs (fixture/mold)

Helo,

I'm relative new to solidworks and I'm struggling with this:

http://74.54.120.132/dbbp/tech-tips/ew/bu_02.gif

http://74.54.120.132/dbbp/tech-tips/ew/bu_01.jpg

This is what I want to achieve: make a surface and then make a mdf-construction to cut.

I really do not now how to start making the ribs and cut them in solidworks.

Anyone?

Great thanks!

SolidworksParts And Features