These are very simple, robust drawer brackets.  The download file (STL) attached is to suit a panel thickness of 10mm and a height (depth) of 125mm, but you can easily customise them to suit your divider thickness and depth.

Simple instructions and a link can be found in the SOURCE FILE PDF document on the download page.

Modifying these dimensions is a simple process involving changing two dimensions only and downloading your newly created file.   

Alternatively, message me and I will create a custom file for you.

The flange width and hole geometry do not change so if your drawers are below say 70mm high, they will look quite chunky.   I have used 8g screws but any smaller size will be good.

To modify these parameters you will have to open the document in Onshape.  If you don't already have one, you will need a free Onshape account.