Sunlu Spools Tower Adapter for Other Spools

I had an issue because I use not only Sunlu spools but also other brands in my filament spools tower, and their inner hole diameters are larger. Manufacturers like Kingroon, Geeetech, or even older Sunlu style spools, and similar brands typically have an inner spool diameter of 73-75mm, which means the standard Sunlu spool connectors simply fall right through. So, I had to create an adapter to go from the Sunlu spool diameter (63mm) to the 73-75mm spool diameter. I also made a connector for linking the larger 73-75mm spools to each other. With these adapters, you can now connect not only Sunlu spools together but also other brands' spools with a larger inner diameter (~73-75mm) all within the same spools tower. Enjoy!