On 5/7/2014 7:56 AM, Karl Townsend wrote:
A Pyramid Straightener consists of at least 3 wheels per plane of wire
to be straightened. one of the wheels is adjustable, often many groups
of three wheels on many planes are used.
http://www.durantco.com/wire-straighteners.php
Do you have any expereince with wire? 
karl
Some, but I'm still ignorant!