Gridfinity tray for Ikea Samla

I love the gridfinity system started by Zack Freedman and the design idea of easy accessibility and of displaying the stuff that is stored, rather than store it away. With my Gridfinity Ikea Samla adapter (https://bit.ly/GridfinitySamlaAdapter11l) I added an easy way of transporting more than a few boxes which I felt was lacking.But when stacking several bins on top of each other it can be a bit tedious to access the lower bins in the Ikea Samla box. So I made a tray that can be placed on top of