Last year, at Maker Faire in San Mateo, we launched a global competition to find ways to reduce the cost of producing parts on a 3D printer that uses plastic filament as its feedstock.
3D printing holds great promise for prototyping and small-volume production, but it has the potential for high volume production as well. Over time, the software interfaces that control these machines will improve, the number of files available for printing will increase exponentially, and the precision of the machines will be indistinguishable from parts made on an injection molding machine. However, to become competitive with conventional manufacturing processes, the unit cost of each part produced by 3D printers must be reduced.
Low-cost 3D printing, including Up! Plus, Makerbot’s Replicator II, Cubify, Printrbot, Solidoodle, and the Ultimaker, range in price from $399-$2200. These machines require extruded plastic filament that costs about $40-$54 per kg. This is between 5-10 times the cost of the raw resin pellets.