Looking to organize my closet space, I decided to build myself a custom shelf using leftover 10mm hollow tube. I 3D printed custom connectors that used an interference fit to connect the hollow tubes. I also added some additional M4 clearance holes to secure 2x custom 1mm thick 5052 Aluminum plates for additional rigidity and to create shelves for stacking folded clothes on. The 5052 Aluminum plates were ordered from a machine shop since I didn't have machining capability at the moment. The 3D printed connectors had 2 product configurations: a middle and corner version, and product configs were used to speed up modeling. Most of my  time was used in testing different interference fit diameters of the connectors to ensure a proper snug fit to the tubes. I didn't paint the shelves orange like I had in the digital model because I really liked the look of the raw aluminum (see photos).

Bill of Materials:

• [2x] 1mm 5052 Aluminum Shelf

• [16x] M4 Socket Head Screw

• [16x] M4 Nut

• [33x] 10mm Hollow Tube

• [12x] Connector (Corner Section)

• [6x] Connector (Mid Section)