Spool hanger for XYZ Printing DaVinci 1.0 printer. Hangs off the back of the machine. Has a filament guide to keep the spool from unwinding (I cleaned up the guide hole with a 5/64" or slightly larger drill bit after printing). Set up the spool direction as shown in the photo, or it WILL unwind incorrectly. 11m of filament used as shown with normal shell thickness and high density. To install, you have to offset the lid. This can be done by raising the lid 15 degrees then pushing the bottom rear of the lid up and toward the front of the machine as shown in the 4th photo. Will fit most 3rd party spools 2.5" deep or less.