MakerBot Metal 3D Printing Guide

3D printing has now been around for about 40 years, but the technology
has only been available to over 90% of users for the last 10 years. Why?,
you ask. The machines that were available for the first 30 years were
simply not accessible to most people. They were incredibly expensive
(hundreds of thousands of dollars) and incredibly complex to operate.
Now you can buy a very simple 3D printer for hundreds of dollars - or
spend a few thousand dollars for a more capable professional 3D printer.