Customizable modular filament spool holder

NOTE FOR THE PARAMETRIC MODEL MAKER: Please ignore the generated preview. Once it’s sliced it’ll look correctly. This is my take on filament spool holders. I want it to be easy to change the size and be able to roll the spools out when I want to print with them. That's why I created this modular spool system. However because I wanted it to look clean at the end, the modules don't fit each spool. At the moment I have sizes for Bambulab, eSun, DasFilament and one from a no name brand. If you can't find the size for your spool either customize it with the parametric model maker or drop a comment with the dimensions of the spool and I'll add it as soon as I can. To make it easier you can give me the size as a 3-number code that you create like explained on the image:E.g. 467 for Bambulab spools. You can print these end connectors If you want to have a clear end like this:Please let me know if you have any wishes, comments or improvements.