Storage system for storing under the bed of a Prusa MK 3.5 print bed. Should also work for MK 3.9 and MK 4.
The left side box has been narrowed to allow room for the revised cable and wire location. You should remove the middle wire clip and slide the front and rear clips towards the ends. When installing the boxes, make sure that the wires are in the space between the box and the frame and not pinched underneath. The wires will sit nicely in the space provided.
I printed with PETG using a 0.6 mm nozzle and a layer height of 0.32 mm.
I will post a modified lid for the small side in a separate model since it will be a remake of the work of another creator. Lid can be found here: https://www.printables.com/model/820270-easily-removed-lid-for-under-the-bed-storage-modif
The author remixed this model.
Modified to fit MK 3.5 and newer model Prusa printers.