In the present state a 3D printer is used for industrial purposes and is used for materials like plastic and metals. It aids in bulk production of goods with uniformity among them. This eases production processes and brings about consistency in the goods produced. If this technology is developed for everyday household use it is sure to have some impact on the economy.
Procurement and possession of goods will no longer be difficult as it will be easy to produce replicas. This might also lead to many goods seeing a dip in value.
These are all ifs and buts that are being considered about a situation that may be faced some five years from now. Till then there might be a lot more changes taking place in the economy and technology side that may add new dimensions to this debate. Until then, the 3D printer is definitely a product being greatly awaited.