About this 3D model
I've since published a new and improved version with multiple refinements, including more reliable printing, a lid, and better brush access. You can find it here: Cantilever Brush Storage Box V2 This is an expandable cantilever brush storage box, although you can remove the brush dividers to make it into a more generic storage box. To assemble the 4 tier version shown in the image (base, 2 middle drawers, top drawer, handles) you will need: 1 Base (Deep or Shallow) 4 Middle Drawers (2 mirrored) 2 Top Drawers (1 mirrored) 4 Short Arms 12 Long Arms 2 Handles (1 mirrored) 88 m3x8mm bolts 88 m3 heatset inserts (max 6mm length) 88 m3 spring washers 176 m3 flat washers To assemble, set the inserts into the drawers, then bolt the arms on ensuring that there is a washer either size of the arm and a spring washer between the box and the inside flat washer. I used some thread locker to ensure the right tension and avoid the bolts loosening over time.