Dave Chamberlain wrote:
My son has been getting more and more interested in wood working. He's
in 9th grade and has been getting pretty good at using the scroll saw
and he's finally learned to watch his finger tips on the sander :-)

He saw some of the 3D wooden puzzles and would like to attempt one.
I was wondering if anyone knew of anyone beginner level free ones
online?

thanks

-dave

I don't know of any free plans but here are a few sites with lots of ideas.

http://www.research.ibm.com/BurrPuzzles/

http://www.puzzlesolver.com/index.php

http://www.cleverwood.com/puzzles_by_type.htm