IKEA Billy Filament Storage Rack

Turn an IKEA Billy Bookcase into a filament rack!I was looking for an efficient filament storage solution and came across the fantastic design by Greenhat over at printables.com. His design uses metal tubing and the wide Billy bookcases, so I remixed the design to make it fit the narrow (15¾" / 40 cm) Billy bookcases and use ½" PVC pipe instead, as it is cheaper, much easier to cut and works just as well. A short bookcase holds up to 20 spools, a tall one holds up to 40 spools. I have also designed some optional drawers. Each row of drawers (choice of 2, 3 or 4 drawers per row) takes the room of 5 spools. More about the drawers below. WHAT YOU NEED:IKEA Billy Bookcase, 15¾" / 40 cm wide. Both the short and the tall version works, choose according to your needs and space.PVC pipe with a diameter of ½ inch. Can be found at any hardware store like Lowes, Home Depot, ACE Hardware or