This model is a rail system for the “IKEA Sortera” (102.558.97) boxes and is designed to create a pull-out shelf. One or more boxes can be mounted next to each other.
The print files were created for the following IKEA box (without the lid!):
https://www.ikea.com/de/de/p/sortera-abfalleimer-mit-deckel-weiss-10255897/ (102.558.97, 41 cm x 55 cm x 28 cm)
Structure of the rails
Each rail consists of two parts (front and rear part) and an optional connecting piece. To assemble a box, you need the parts for the left and right rail. If you want to place several boxes next to each other, you can use the middle rails. The rear rail has a built-in stopper to prevent the boxen from being pushed too far back. This prevents the boxes from becoming jammed. See pictures.
Note: The connecting pieces are optional and do not create a fixed connection. They are only intended to help align or adjust the parts better when attaching them.
Mounting
Each section of the rail can be fastened with two screws. I have used 3.5 x 35 mm wood screws here. You need a distance of 39.8 cm between the individual rails so that the boxes fit between them. See pictures.
The author marked this model as their own original creation.