A folding tray that hangs on a board. For example, you can use it by attaching it next to your bed. Convenient for storing small items. The tray can be folded and stored when not in use. The hook part is removable and can be replaced depending on the thickness of the board. All can be printed without support materials.
 

Print Settings

Material: PETG
Nozzle: 0.4mm
Layer height:0.2mm
Support: none
Infill: 15%~

The tray will move smoothly if you adjust it so that the seam does not overlap any moving parts.