Protoflux is a new 3D printer filament which is PLA based and printable on any printer that can extrude PLA. It has properties that allow for magnets to be attracted to it. What is even more interesting, however, is the fact that this means we will be able to 3D print products which can store magnetic data. Think a floppy disk or a hard drive. This same type of technology can now feasibly be added into 3D printed objects if done correctly. What do you think? How difficult will it be to "program" and "code" this technology into 3D printable designs, using this new filament? Read and see more at: http://3dprint.com/26823/protoflux-magnetic-filament/