So with all my hobbies i like to make what i can to save money so i built a cnc machine and a 3d printer for designing and making my own stuff. Here is a hmf filter i designed in fusion 360 and printed out been using it on my 10 gallon planted tanks and is working out great. Love this idea because everything can be hidden behind the filter. If anyone needs one printed out or wants something made please let me know. Here are a few pictures.