You may have noticed that your public library now has one, two, or even an entire lab full of 3D printers. With over 400 public libraries in the US now boasting the new technology—and with many eager patrons using them—it has come to the attention of the ALA that librarians and administrators have common questions and concerns that should be both answered and considered. This is the third piece in the ALA’s ‘Progress in the Making’ series, and it offers answers to elementary questions such as what kind of machines to buy, as well as other considerations like how long prints take, what the best CAD software is, how to deal with maintenance situations, and more. Read more at