The rims and center ring are straight from Bambu's spool. And interchangeable with it. It is designed for Bambu's refill spools. But I have found that Elegoo spools also fit perfectly on it. Also Overture and Polymaker spools fit but are a bit loose, but they fit perfectly over the center rings of Bambu and Elegoo spools. So, I use them as spacers. Let me know if you try it with any other brands!

I recommend PLA because it is a lot stiffer than PETG.

03/24/23 - I've got multiple requests, so I uploaded a version 2.3 and 3.3 that remove the little notch on the inner ring. I left print profiles with versions 2.2 and 3.2 that still have the notch for Bambu spools. Note, I think the notch is important because it locks the cardboard inner ring so it doesn't spin free of the spool. 

12/14/23 - WOW 7K Downloads!!! Some folks asked for a filament scale, Soooo here is v2.2 and v3.2!!! The left side of both have a filament scale. The right side is unchanged.

11/19/23 - Here is v2.1 and v3.1!!! The only difference is I added a 2mm hole in the Left side of the center ring for filament to be inserted when respooling. Though respooling isn't what I usually do. I actually have found that the cardboard center of other spools fit right over the center of this spool. Specifically, Elegoo fits perfectly. you just need to nip out a little notch. I have also done it with Overture and Polymaker. but their center rings are a little bigger and so are a bit loose. But, the center ring of an overture spool fits snugly right over the center ring of an Elegoo spool, which fits snugly over the center ring of this Bambu spool!

10/19/23 - Wow! 3K downloads! Here is Version 3! it uses less filament and takes less time. But it may not be as strong. I have been testing it now for a couple weeks without any problems.

9/29/23 - Uploaded v2. I completely remade the spool using Bambu's newest spool. The rims are completely smooth now.

Here is a remix of Bambu's Filament spool but with hexagons to use far less filament without sacrificing strength.

The rim filament holes are also angled so as not to introduce a sharp bend into the filament. Also, there are more of them around the rim.

This is interchangeable with the original Bambu rims.

Note: the spacing shim goes on the inside of the spool to lock the two halves together. Though I haven't needed it because they lock together pretty tight. But Bambu recommends it, so I included it.

Why hexagons? Because hexagons are the best-agons!

Notice: Print profiles NOT created by Brandido02 may contain outdated model versions or suboptimal slicer settings. Use at your own risk! I have no control over these third-party print profiles.