Jerry, the 4130 box beams are almost done.  Here is a 4130 test
sample to check for spring back. The final version will
be perfect with 1.312 holes punched in the ends for the rubber
bushings.

My buddy George had to make a special tool. 
George is not the cheapest guy in town so 
you might want to make this up for your local supplier
when you reorder box beams. It consist of a 1/4 inch
steel plate with 1/4 round bar welded on the bottom and two 1/8 inch
doublers welded on the top so it fits the 1/2 inch tool clamp in
the CNC press brake. You should save your supplier some time and 
money doing this for him.

On the other hand makes sure you included George (Talins in Torrance CA) 
when it comes time to reorder. He already has the tool and knows
how to make them.


Paul Lamar
 
The Rotary Engine NewsLetter.  Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/            
Copyright 1998-2004 All world wide rights reserved.