Filament Spool Rack

Looking to organize your filament collection and own some Ikea Kallax units?  This rack has been designed to fit perfectly into a Kallax shelf and keeps 10 spools organized - 4 on each rack and 2 underneath.  In addition, the front of each rack has space to store swatches for each filament type to make visualizing your storage and picking out what color you want to use easier.  

Notes:

• To make printing more efficient, the rack has been split up into 2 parts, the side support structure and the horizontal rack sections.  Each rack is made from 2 of each and fit together by aligning notches on each of the corners.  While you can secure them together with your choice of adhesive, I have found the weight of filament being stored is enough to keep them from shifting when swapping spools.  
• Kallax shelves are wide and thus even split apart the individual pieces are large and will require an oversized print bed (the longest part dimension is just shy of 13.2 inches).  I was able to print all 4 parts at once on a 14x14 bed.  
• The included swatch is sized to fit with some wiggle room into the holders.   In the example shown, I added text using the slicer to add details about the filament to the surface of the swatch to help with identification.