Parametric Build Plate Support for Delta Printer

I needed some sort of support for the build plate on the Delta printer I am designing & came up with this idea. There are quite a few variables you can change, but most of the ones you really need to adjust to your design are nearest to the top of the program. I still have not decided on the size my Delta will be which is another reason I wanted to be able to easily change the sizes. I included STL files for 3 sizes. The 310mm OD & 220mm OD are probably the most common used. This design may change, since I am not sure whether the heat bed & glass will attach directly to this or whether I need to make another bracket for that. The large 406mm OD I had to make in six 60 degree wings to fit on my print bed. I might have been able to make it in three 120 degree wings if I made the center Internal diameter larger. You have a choice of 30, 60, 90, or 120 degree wings although 90 probably does not work well for a delta. Let me know if any of the variables do not work as expected. It