Hi everybody, Although I am new to this forum, I am a 3D printer fervent, and have even written a short ebook on the subject. I was fortunate enough to spend some time with Zach Smith (ex of Makerbot) in Shenzhen last year, who really got me interested in the subject, along with Dr Alexander Elder who was also very informative. I am sure that many of you have read his ebook on 3D printing stock investing. </a> With all the stock prices rising quickly after Obama's mention of 3D printing in the SOTU, I am sure that Dr Elder must be laughing all the way to the bank. My own ebook on 3D printing looks much more from the small entrepreneur's perspective, looking at how these machines can turn a profit at home. 3D Printing: The Next Technology Gold Rush - Future Factories and How to Capitalize on Distributed Manufacturing <a href="http://www.amazon.com/dp/B00B1UKZC6" target="_blank"> If anybody would like a complimentary copy for review purposes then please feel free to ask. I need all the publicity help that I can get. Chris