The shower caddy model is designed to be hung from a 0.75in diameter showerhead pipe and hold your soaps. The top shelf is for taller bottles, and the bottom shelf is for bars of soap. The design is split to fit a 12 inch build sheet. 

• The two channels are made to connect the two side supports to the upper hanger/support. 
• There are small rectangular blocks designed to hammer through the holes in the connector and supports. 
  • If you prefer a loose fit with glue, reduce the width and heighth of those blocks by 0.01inch. 
• The shelves snap fit into the supports, but I recommend glue to be sure they don't come apart. 
  • Make sure the glue is made for whatever filament you use. 
  • I reccomend PETG and superglue.