UPDATE: Uploaded the STEP file as i was asked for it several times :-)
Infected by Gridfinity Virus i found the grid for Makita MakPacs and thought, great solution to store my screws and other tiny stuff together with other MakPacs of my tools.
The grid for the Makpac is great, however there are two corners left and right which are useless.
Thats how those Corner Bins got born :-)
The author remixed this model.
adjusted the perametric bin 2x1 into one which suites the corners of the MakPac Grid