Ultimaker's latest 3D printers let you swap the nozzles
 

The Ultimaker 2 became a popular 3D printer after it was launched in 2013, thanks to a combination of high-resolution output, sharp looks and decent pricing. The fact that it outputs larger-than-average objects for its size also makes it attractive f...

http://www.engadget.com/2016/01/05/u...us-3d-printer/