This bin follows the design of the original Gridfinity basic bin. However the internal space extends down into that space normally reserved for the magnets.
I've exported several sizes but if there's something that you would like to tweak you can open the CAD file here: https://cad.onshape.com/documents/b9ef65c6b1170f698f0ae743
The files exported here all have 1.7mm walls and a 1.2mm thick base. I only exported divided bins up to 3 units deep.
While I tried to get all the variants to work, not all possible combinations are valid. For example a very thick base with thin walls might not generate without errors.
These files are licensed under the MIT license just like the core gridfinity designs. Printables currently doesn't have an option for this license.
The author remixed this model.
I redrew the model entirely in Onshape. My variation has a more internal volume, but only supports a single grid unit bin. It does not support the use of magnets.