Bambu Refill spool - With internal filament clip!

Bambu Refill spool - With internal filament clip!

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A1
P1S
P1P
X1 Carbon
X1E
X1
A1 mini

Full size - 0,24mm
Full size - 0,24mm
Designer
4 h
2 plates
4.9(359)

Full size - 0,3mm - super draft
Full size - 0,3mm - super draft
Designer
2.9 h
2 plates
4.9(90)

A1 mini spool - 0,24mm
A1 mini spool - 0,24mm
Designer
4.2 h
2 plates
4.9(98)

Full size - 0,24mm - AMS friendly
Full size - 0,24mm - AMS friendly
Designer
3.8 h
2 plates
4.9(183)
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Description

Yes, this is yet another reusable Bambu filament spool!

 

But hang on, I was missing some features in other spools, especially in the filament holding department.

So I still designed my own…

 

See, most spools have holes in the sides to pull the filament through to prevent it from unspooling and tangling. This has to do with injection molding where it is hard to create an alternative hole orientation.

But this is 3D printing! We can do what we want! That's why I integrated the filament pass-through in the wall of the spool, making it easy to store spools next to each other or even stacking them, without the fear of breaking the filament tip and untangling the spool anyway!

 

The spool center also has a single wall, since the double walled designs are only needed for (again) injection molding. The inner ring is still thick enough to fit comfortably on the AMS lite. I believe the spool is also AMS compatible, but please let me know since I don't own one.

 

Thirdly, I find the ‘grams’ indication on the sticker too minimal. Therefore I integrated the weight of the empty spool including cardboard in text on the inside. This is ~175 grams for the standard spool and ~160grams for the mini version. Just weigh your spool and subtract.

 

Oh, and I was also not feeling the hexagons and circles, but that is just a matter of taste!

 

I did add a 179mm version for the A1 mini, it should be big enough but make sure the spool is always under tension when full because the filament might otherwise get sidetracked besides the spool. The other two print profiles are the quick and definitely dirty (still works the same though), and a higher quality one.

 

V2 changes:

  • Users were wanting to use this spool for spooling their own filament, so the base is now flat and there are two alternative holes to hold on the start of the filament.
  • The spool now locks even without having a refill spool in between the halves, V1 falls apart (but does work with a refill)
  • The lock is slightly firmer. The first time you might need some force for the snap. When the pattern is aligned on both sides, it is in the locked position
  • Added an AMS friendly version with a thick, continuous perimeter

V3 changes:

  • Some users had V2 not locking firmly and others had V2 locking too firm. I believe this is due to Bambu's Flow Rate Calibration which sometimes overcompensates and sometimes undercompensates. Therefore V3 has a spring loaded locking mechanism.
  • The label was not accurately placed to force myself to weigh spools instead of trust the label. I now placed the label in the correct position.

 

Happy printing!

 

-Rossero

 

And don't forget to check out my latest project:

Comment & Rating (1374)

(0/5000)

Boosted
Print Profile
Full size - 0,24mm
This is super sturdy and clicks well together, and the filament slots are awesome. My one major complaint is the spot to put the Bambu Lab sticker makes the filament amount counting marks useless. Can you possibly relocate the sticker tab a little further out towards the outer ring so the line markers on the sticker are somewhat relevant? Printed out of GIANTARM silver PETG. I didn't think to weigh the two 1/2s w/o a spool in it, so I will have to do that on the next one and report back.
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Thanks for the elaborate feedback! I firstly designed the spool for myself and the bambu stickers seem so far off I wanted to prevent myself from using them. When I reach the end of a spool and have an 80 gram print coming up I want to make sure there is at least 80 grams on it, not approximately maybe around 100ish if you squint your eyes 😅 so that's why I made it "unusable". But I understand that most users are not like me so I'll take a look how it looks if I extend the oval far enough and update the profiles if it works.
3
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Boosted
Replying to @Rossero :
I rarely use the line on the sticker myself, as they could easily be "off" by bad placement, but it does annoy my OCD to be that far off. :-) FYI here are the weights of the silver PETG. I zero'ed out after putting the Tupperware on the scale. The second measurement was with the BL cardboard core w/ RFID tags on it. I am pretty sure I used 3 walls w/ inner/outer/inner print order, but other than that I think the settings were the same as the default.
(Edited)
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Replying to @HotFix :
Thanks! The 0,24mm profile should indeed be about 130 grams, the 0,3mm profile is slightly heavier due to a wider print line. The cardboard core ranges between 38-39 grams (according to the internet) so the complete spool should weigh around 170 grams. To be sure not to oversell the amount of filament on the spool I took a 5 gram margin (0,5% of a full spool). Really appreciate weighing it for me because I am quite new to Bambu filament so I don't have any empty cardboard cores Oh and as you can see in my pictures, I even put the sticker upside down to make extra extra sure there was no confusion. Hope you can still sleep after seeing this ;)
(Edited)
0
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Print Profile
Full size - 0,24mm - AMS friendly
Print it out perfect and is probably the most sturdy version I’ve printed yet. Good job.
1
Reply
Thanks! Have you tried it in the AMS yet?
0
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Replying to @Rossero :
Waiting on filament to come in the mail then I’ll let you know how it works.
0
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I tried mine and only one worked. I don't know what happened with the other one. silver is perfect. green came aparte. im wondering if there's a way to respool.
1
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Boosted
Print Profile
Full size - 0,24mm
Made handful of these when ordered my first bigger load of filaments, and most of them being refills. Works like its supposed to, and big plus for integrated filament clips. Only minus was how rfid tag was stucking on those holes next to its place, but that aint gonna eeduce the star rating for me. 5/5
11
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Thanks for keeping it 5 stars! I have experimented with some add ons to fix the RFID thing but it helped the one second you try to twist it but it looks less nice the rest of the life of the spool. So I stubbornly kept it simpler, I hope it is not too much of a hassle!
0
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Print Profile
A1 mini spool - 0,24mm
Prints nicely it might just be my printer but the walls arent the best
0
Reply
Thanks for the review! That seems to be a filament issue, either printed too hot or the filament was not dry enough?
0
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Replying to @Rossero :
it was new filament from bambu labs so im just confused
0
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Replying to @user_3660767468 :
On the forum there are a lot of people complaining about Bambu spools arriving wet, I personally have never had that issue and I'm not even sure if it is moisture related, but it sure looks that way. Thanks for the boost!
0
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Print Profile
Full size - 0,24mm
Love it! Fit was perfect and nice and snug. The built in filament clips are a really nice touch. The only thing I missed was a place to put the sticker for the amount left.
1
Reply
Yes, the oval is for the sticker. But because I find them very inaccurate I shifted it in a way that I would never use it to see if the print would work and use the weight. I designed this spool for myself and I never expected it would be one of the most popular ones out there! Thanks for the boost :)
0
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Replying to @Rossero :
I really appreciate the weight marker on the spool. I usually use weight as well, but I also like the sticker for a quick check to see if the spool is even close to the amount of filament needed. Any chance of shifting the oval back to the original position? If not, I was thinking of doing a remix and adding a new oval.
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Replying to @jwnicholson :
For now I am leaving it where it is, otherwise the oval will be too long or it becomes a floating space and I do not want to upload too many variations. You can adjust the design for personal use but since this is an exclusive model you can't share or upload the remixes sadly. I hope you understand :)
0
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Print Profile
Full size - 0,24mm
Print and design is brilliant. So happy I printed this version. Profiles are spot on for my A1. They printed clean and have been working great for a while now. Locks together nicely. Integrated filament holder is a touch of genius! Putting refills in is easy with that inclusion, find the end, slot it through the hole and it keeps the end nice and straight, no kinks, no bends, whilst you undo all the tabs. Fits cleanly onto the AMS lite. Printed 2 so far but this is now my go to file for spools
1
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Thanks for the elaborate review and boost! I love how a single brainfart design can be shared and see photo's of "my" spool all around the world. Thanks!
1
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Replying to @Rossero :
It's a great design. That 'brain fart' really works. I'm now printing them in the same filament colour that I want to load on them.
0
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Replying to @pippyswoodforge :
But then you need the filament for the spool, but the spool for the filament...? 🐤<🥚<🐤<🥚<🐤<🥚<🐤<🥚<...? 🤔😅
2
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started with the V2 but have printed this V3 ever since finding it. it’s a beautiful and functional spool that I have used to transfer all my cardboard spools to. The centre passthrough to secure filament for respooling is far better than most allowing filiment to come off easily when it reaches the end. take my boosts!
The designer has replied
0
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Great to hear it works well at the end of the spool as well. Do you use the perpendicular of parallel filament passthrough for it? Thanks for the boost!
0
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Replying to @Rossero :
If you are referring to the method of connecting to the spool I think it’s parallel? I used the passthrough that matches the same style as the holders around the edge of the spool. It seemed more intuitive than the traditional “shove it in the hole and kink it” method most spools have 😅
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Replying to @Vermiliondaz :
Thanks! You don't have to kink it in that hole, if you don't I expect easier extraction at the end of the spools life because it can just pull out straight, while the parallel one can get kinked if it doesn't pull out directly. I never respool so I can't really test it so I'm happy you have had positive experience with it!
0
Reply
Print Profile
Full size - 0,24mm - AMS friendly
-1 Star because it came apart in my AMS and caused me absolute havoc (respooling an extremely tangled spool.....) Printing a dessicant holder that will join the two sides together is necessary IMO. Other than that headache, great design. I absolutely love the built-in hole for respooling and the built-in filament clips!
2
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what desiccant holder did you print for it to still work on AMS while holding it together?
0
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Replying to @CoconutDreams :
0
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Boosted
Print Profile
Full size - 0,24mm
Perfect fit and minimal Filament needed.
0
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Those are some bright photo's, thanks for the boost!
0
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Boosted
Replying to @Rossero :
Ok, I don't know what's happening, but I went to re-upload these pics, and just noticed that now they look ok. I don't know if they fixed it on their side, but do they look fixed now?
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Replying to @JoeA789 :
Yes, looking splendid!
0
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Gonna just go ahead and call this the BEST spool for Bambu refills, HANDS DOWN! Every enhancement over the original from Bambu themselves I could want in a refills spool, No silly locking clip needed, FAR less filament needed, nice thick edges for smooth feeding in my AMS, and multiple integrated "clips" so no need to also print some other thing just to hold the end plus kept internal to the spool for clean and easy stacking. I printed them using FLSUN PLA on my T1Pro, each half took only an hour. BRAVO!
The designer has replied
1
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Thanks for the beaming review! What's the whole deal with 'locking clips' anyway? I have never tried any other spool but some users have asked for them for 'extra security and piece of mind', so I'm curious why they would be necessary?
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Replying to @Rossero :
When using a Bambu spool, you twist the two halves together until they lock, but then you insert a small shim (locking clip) into a gap in between the two halves, which locks against 2 little protrusions, making it impossible for the 2 spool halves to unlock on their own during use. You can only open the spool again after removing the shim/locking clip. Thus peace of mind, knowing your spool isn't going to suddenly come apart on it's own during use, etc.
1
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