New, NEW Screw Wall! Check it out, its much stronger than the Honeycomb wall. https://www.printables.com/model/544779-screw-wall
You will need some support under the middle bracket but that's it, works great with Honeycomb Storage wall Small tray, or squeeze bottle holder, or an aquanet can. Check out my other Honeycomb Storage wall STLs I have a ton..
The author remixed this model.