Filament Spool Holder that fits Creator Pro

Here is an alternate spool holder that fits the Flashforge Creator Pro and allows the use of many different size spools.

How this came to be: Many filament sellers or websites do not list the spool dimensions and I ended up with 4 or 5 spools of specialty filament I could not use with the default spool holders on my creator pro, so I designed these to solve that problem. I could have just designed the 3/8 holder first, but I didn't realize that the one filament I wanted to use was on a spo