I needed a paper tray for DIN A5 paper. I could not find one I liked som i decided to make one that fits the Gridfinity system.
It uses 5 ½ by 4 Gridfinity slots. This is to reduce material and print time, this also gives the opportunity for a ½ bin to be stacked behind the tray.
As this is Gridfinity compatible it's of course stackable.
Dimensjons:
For ½ bin's see here: