This 1:8 scale model might help you think about how to climb the pyramid in FRC's 2013 event - Ultimate Ascent

Print 12 copies of this part - I had to open up the holes with a 3/16" drill bit for a good fit.
Cut 4 each of the following lengths of 3/16" dowel
13"
3.125"
6.25"
9.375"

Assemble as shown in the finished model, which is based off the team drawings for the pyramid.