I did this because I needed a table for when I am in my bet on my computer and do not want the computer to over heat. Works just fine. I added different lengths for all the different type of lap tops. This was created with Design Spark Mechanical http://www.rs-online.com/designspark/electronics/eng/page/mechanical . I started out with Blender for about a year but when I came across DSM I was blown away. What I had learned in blender for the year or so, I had learned in 3 ~ 4 hours in DSM I highly recommend it. Give it a try you will not be sorry. I have over a hundred models that I have done just in the past 12 days. Have a great day. :) P.S. Please take a look at this 9 min. video about DSM https://www.youtube.com/watch?v=ZXgMY3-hlgs