Modular Wine Rack

I made it from PLA, but strongly recommend to use PETG or stronger materials for larger structures. 1 meter squared can hold quite a big load (more than 20 bottles(PLA)). Considering that infill was only 5%.Diameter of the wine bottles can be up to 80mm. 50mm slots are ready to post if needed.
Final version is updated with covers over perimeter. CHECK THIS OUT. Photo added.