5 Example Questions votes newest recent 10Personal Manufacturing: How many prototypes do I have to make before owning a 3D printer, laser cutter, or mill is more cost effective than outsourcing to a service bureau? 21Personal Manufacturing: Where is subtractive rapid prototyping more appropriate than additive rapid prototyping? 15Personal Manufacturing: My school wants to set up a “Fab Lab” what are the key pieces of equipment we should get and where should we buy them? [closed] 19Personal Manufacturing: What are the relative strengths and weaknesses of 3D printers made by Stratasys, 3D Systems, Z Corporation, and Objet Geometries? 19Personal Manufacturing: What kinds of shapes are difficult to print on a MakerBot/RepRap and how can you hack machine performance to achieve them?