This thing has moved to Youmagine https://www.youmagine.com/users/jensa so I don't also get sued by Stratasys... This is a remix of the brilliant Adjustable Heavy Duty Filament Spool (http://www.thingiverse.com/thing:19122) by @KillerGardevoir for use with the Ultimaker mount (http://www.thingiverse.com/thing:33461) made by @fluxline. The arm and hook are like on the original, but the Hub has been redone to work with both 3 and 6 adjustable arms as well as to fit the Ultimaker mount. Just print a hub and the amount of arms you need to get a super-sturdy filament spool for your Faberdashery (or other) filament. Then print the the following files from http://www.thingiverse.com/thing:33461: Fasten the rod to the spool mount, the spool mount to the Ultimaker, add the spacer, then the spool and finally the Cap.