This little purge drawer design is very nicely designed and attaches easily.
I found the walls were a bit thick so I modified them in Blender to about half thickness.
I ended up adding a bevel/rounding effect as an aesthetic choice.
Also changed the handle design to fit bigger hands.
This meant it now needed supports so I separated the handle (to print on its side) and added locating bumps for gluing.
Lastly the back panel is separated (to be printed flat if desired) and notches in to the main cabinet.
UPDATE: June 25th 2025
Modified back panel to include the support tab (now prints without supports) and recessed screw hole.
Uploaded all part in separate files
The author remixed this model.
Thinner walls (to save material)
Separated back panel (to permit fewer supports)
Separated handle (to permit more square design without supports)
Rounding of outside edges edges (cosmetic)