Aerospace applications of 3D printing are some of the most exciting aspects of the industry that we read and write about. Some of the most important parts of building a spacecraft, however, are not always the most glamorous. Recently, a study conducted by Croft Additive Manufacturing and ESR Technology found that 3D printing could be effectively used to create "cages" to contain lubricant within the bearing system of a spacecraft. Owing to the conditions of space, a lot of issues have arisen with the bearing lubricant, but the research teams think that the 3D printed cages could solve those problems. Read more at 3DPrint.com: http://3dprint.com/114279/3d-printed-lubricant-cage/