Topic: looks like Makerbot is putting an RFID chip in the new filament.
Makerbot has came out with a new printer that uses their tough filament that requires an RFID chip.
the printer is a dual Nozzle and quite expensive. they talk about how tight of tolerance the printer is.
Here is a link.
https://www.makerbot.com/3d-printers/method/
Thanks
Dale