Took the original Bambu Printable Spool and modded it with @KobaRiley ClipSpool. (have received permission to share this mod from KobaRiley).
I found that the HexSpool version the KobaRiley made wasn't strong enough to allow rewinding the spool as the sides just flaired out to much (what I found anyways).
Easy to print.
The filament clip channel run 360 degrees around both halves of the spool. The channel is slightly wider that the filament, but the shape of the channel keeps everything securely in place. No more cutting off the deformed end of the filament, and it pops in or out with very little effort.
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