A very simple storage bin which fits on top of the A10M's power supply. 3 different heights provided: 158mm, 100mm and 50mm. 158mm should roughly fill the space above the power supply to the top of the printer.
A test stl file is also included to test if it will fit your power supply and if your printer is capable of bridging the gap. Bridging doesn't need to be tidy/strong as it's out of sight and only provides the base which touches the top of the power supply.
Enable bridging settings in your slicer if it supports it. Circular infill may increase print time. Raft might be required as the base is quite small. Supports shouldn't be needed.