Yet makers who want to scale the complex of additive manufacturing processes, systems, and economies to the mass production of metal parts will still need to address persistent concerns of scale-up. The size of metal printers is large, on the order of 22 meters wide and tall. (Figure 1-1). On the equipment, the run length of a layer is estimated to be ca 60 cm, which can require more than 10 minutes to print. Furthermore, the sheer number of machines needed to print a single part can be daunting. The serial convergence of this technology means that as these machines are used in bulk the level of use will inevitably decrease. Expect these printers to become commonplace in factories, foundries, and organizations looking to mass-produce parts for a single customer. But it is important to recognize that this success will occur because the combination of metal layer addition and consolidation with existing capabilities and automation is driven by additive techniques. By contrast, companies that aspire to mass production through the use of subtractive techniques, such as turning or casting, often rely on an assemblage of specialized machinery that can cost tens of millions of dollars. A key point is that scale-up of additive processes requires tools, scale, automation, materials, and research, which are often missing.
A second major application for additive manufacturing is the construction of custom structures. Dozens of companies, including Boeing, General Electric, AirTies, Armalite, and the Marine Corps Warfighter Design Contest , are now building large quantities of parts to support their goods. The capability will be useful in situations where makers require a specialized load-bearing structure or part, such as an aviation carrier capable of housing the electronics needed for a drone, or a reinforcement structure for a bridge.
The Fighter Maker game is to build your own fighter aircraft, from the clean room up to the cockpit. It’s about designing and building a real product. First you have to create a mould of the aircraft and then you can make an all-new product. It’s a virtual factory. Every aircraft has its own style, shape, size and color, and you can choose everything from the engine, to the pilot seat.
The game Star Wars: The Old Republic (SWTOR) was the first mmorpg that gained a huge following from Star Wars fans.  The game is the first mmorpg to be truly community oriented. The process of making new content for the game is open to all participants, and the game makers invited the player community to participate in the development of the game’s lore and events. This is truly an achievement in mmorpgs.
In it, two fighters fight each other in a two-on-two battle. Players take control of a fighter and must protect their partner fighter from other players, while also attacking other fighters. “The challenge is that we have to make sure that the two fighters play together, and that the two are equally matched to keep the game from being too easy. We need to make sure that the player thinks that they are in a fair fight, no matter what they are going up against,” Martin says. It’s also been a learning experience for Martin, who is no longer a game developer. He has built a base of knowledge and skills in the field that he can now draw on as a co-founder. He’s hoping this will be the start of a crowdfunded campaign that will lead to the success of the game.