This is a python script that can generate filter towers and holder adapters for sumps. You need to remove the .txt extension to use it. I created a 4" holder and tower as well as a dual 4" tower with a frame and plate for my FijiCube 20 Sump. I am running an 11oz ChemiPure in one of the filter now. The parameters are documented in the script. But the main thing for the towers is that you can specify the top part to be solid and the bottom part to be mesh. You can also change the shape of the mesh. I am using Octagon here, but other shapes are support (see python file). This requires FreeCAD 1.0 to run the python script and generate the components. I created this entirely with Claude Code.
Here are some pics:
Here are some pics:
