Modular Small Drawers (155mm x 218mm)

You can add as many drawers as you want to this model. Just print one base and one drawer per level and then just one top.
The drawers are 200 x 124 x 50 mm internal.

As requested, I have parameterized the drawers and added here the openSCAD files in a zip file.
Unzip into a directory and open DrawerMain in openSCAD.
Open the customizer window and you will see the variables that can be selected to change the size of the drawers.
I have not tested this out, but it looks like it is working.
Let me know if there are issues.