Truss Test

For a project, we're going to design, and test, a truss.

This is the testing system we will use:
link

I will supply each person with 5 pieces of 1/4" by 1/4" by 36" balsa wood.  You can either bring in your own glue, or use the gorilla glue in the closet.  I will give you your balsa wood after approving your CAD truss design.

Keep it lightweight (less than 20g). 
Justify your design with a few statics calculations.