Build as many shelves as will fit your needs. Slide them into the backboards and push them down to lock them in.
The danged laser makes it very easy to develop interlocking stuff quickly and precisely - NON-SAWDUST
I'm finishing this Instructable
up for now while relaxing with my popcorn and soda pop at TechShop San Jose. http://techshop.ws.
Please forgive the snake! It's a wannabe Lego!