Gridfinity Tray for Ikea Samla 5L

A companion to @Akio's Gridfinity adapter for Ikea Samla box 5L -  https://www.printables.com/model/369940-gridfinity-adapter-for-ikea-samla-box-5l

If you happen to fill the Ikea Samla 5L bin to its max capacity of five 3U (21mm) tall bins using the Gridfinity adapter, there's still a teeny gap ~3.5mm between the top of the bins and the top lid itself - so this tray is designed to keep the topmost bins flush to the lid

The tray is designed to be multi-purpose:

1. It can be stacked on top of existing bins to seal the gap with the lid. You can glue it to the bottom of the lid, it serves to secure the bins from wobbling or moving around
2. It can interface in between layers of bins and act as an interface tray to make it a tiered storage
3. Put the tray on top of the lid and your lid can transform into its own working zone of bins that you are actively working with

NOTE: I have added a test piece that you can print to double check on compatibility with your setup. If anything, it does act as a cute separator grid plate on top of plain 2x3 bins :).