Parametric Spiral Notebook Cover

I found a lovely version of a Notebook cover by @zhakryuu but they were sadly all in EU sizes. I need mine measured in freedom units, so I decided to try my hand at making my own. It's got the option for square or round holes, and you can set the number of holes as well as the radius of the outside corners. My printer is currently busy printing a batman mask for my cat, so I haven't yet printed it. This is literally my first attempt at making any functional 3d model, much less a parametric one. If you print it, I'd love to see it. If you have feedback, I welcome it.If you make it better, please let me know how! Thanks to you, the community and freaking fantastic Makerspace for making this dream of being at least moderately capable in 3d, slowly become reality. Worth noting:I printed 2 layers to test the hole locations and cover size, as I was actually replacing a broken cover on an existing notebook. This happened to make the best page divider!! I'll try to add a print