This model is intended to replace the original brackets for the bottom shelf of the IKEA Lack coffee table (118 x 78 cm).

My experience is that the small original brackets and screws are not enough to secure the bottom shelf, and with time the screw holes in the shelf get worn out to the point that the screw falls out and the shelf is just resting on the angled brackets. My design is intended to be mounted without any screws in the shelf itself, only in the legs. Hopefully this will prolong the life of the table.

Please note that you will have to print two in the direction of the stl-file, and two that are mirrored. I printed mine in PETG, but I believe that any material should work.