Another instance of MakerBot trying to patent things they didn't invent Posted by jonathanmarvens on Saturday May 24, 2014 @02:59PM from the plus.google.com dept. https://plus.google.com/+Whosawhatsis/posts/BipgwyhE7D5 ( 1 comment | 3 points | on HN )
"MakerBot’s Unknown Invention is Uncovered: A 3D printer that switches build materials midprint"
http://3dprint.com/3187/makerbot-3d-printer-invention/
If I didn't know better I'd take it as satire.