Fast & Light Bambu Spool w/ Internal Filament Clip by UnigueUsername

UnigueUsername

3D Printer>3D Printer Accessories

IP Report

Print Profile(3)

All

P1S

P1P

X1 Carbon

X1E

PLA - 0.28mm layer

Designer

2.3 h

2 plates

4.8(95)

PLA - 0.20mm layer

Designer

2.8 h

2 plates

4.8(13)

PETG - 0.28mm layer

Designer

2.5 h

2 plates

4.1(14)

Open in Bambu Studio

Boost

219

598

230

146

628

432

Released

Description

Looking for a fast light spool but tired of flimsy models with little structural integrity causing snarls? I bring to you a robust, light weight, fast printing spool with all the most useful features included.

Weighing in at under 90 grams and printing in 2 hours and 20 minutes for the PLA version, this spool also features a continuous internal filament clip that keeps the filament inside the spool, out of the way, and kink free. The spool locking mechanism is composed of 6 threads that evenly distribute the stress across the hub, with an array of shallow ridges at the junction point providing a solid latch. The screw also makes dealing with poorly stacked filaments much easier, and if necessary can simply be tightened if you are unable to fully close it in extreme cases. If you prefer buying filament in bulk, two holes on the hub make spooling your own filament easy.

The spool comes with the standard filament label, along with the weight of the spool with and without the Bambu cardboard insert printed along the outer rim. For more precise measurements, simply weigh the spool with the filament, then subtract the weight of the spool for the exact amount of remaining material.

All angles are 55° from the print bed, allowing rapid printing using 0.28mm layer height with no degradation in structural quality. I have included a 0.20mm print file for those who want a more polished exterior, but it is largely redundant. The ribbing on the exterior of the spool boosts print speed, cuts weight slightly, and ensures there are no issues when removing the spool from the print bed.

I have receive a couple reports of the filament snarling when the PETG print profile is used in an AMS. To combat this I would recommend using the PLA version when possible for the increased rigidity as well making sure to thoroughly work the filament refills as recommended by Bambu. It usually isn't necessary for standard spools, but for light versions it can really help to prevent tangles.

V2 changes:

Several users noted the previous version would not fit in the Ultimate Filament Spool Enclosure and it would grind in the AMS. To address that I decreased the hub width by 1.5mm and the spool side thickness by 1 mm, offsetting the loss in strength by increasing the width of the spokes . The new version is now slightly slimmer then the original Bambu spool and should work fine in both enclosures.
The junction of the hub and the spool side was failing in extreme conditions so I increased the thickness at the junction point.
The ribbing on the label tab was excessive so I decreased it to better match the rest of the spool.

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As always, Boosts, Likes, and Shares are greatly appreciated!

bambu spool

internal filament clip

reusable spool

fast print

refill

Comment & Rating (230)

@Skvllknight

Boosted

Print Profile

PETG - 0.28mm layer

not a great design as it stuck the Ams

@Unigue

Can you provide more details? As far as I can tell my spool isn’t even in the picture.

@Skvllknight

Boosted

Replying to @Unigue :

ok sorry. printed in petg black. while printing only only color, the spool works fine. but when I use the AMS (printing more than 1 color) then when the printer loads and unloads the spool going backward and forward then the filament stuck in the spool as the height for a brand new spool is not taller or robust to avoid filament to wrap around. I can try again

@Unigue

Replying to @Skvllknight :

Thanks for providing more details. The PETG version is more flexible, and while it’s worked fine for me in the AMS Lite, I prefer the PLA version for its increased rigidity. I’ll add additional warning regarding the PETG version when I get the chance. I’d also suggest making sure to really work the filament on refills like Bambu recommends prior to use. it’s really not necessary for a standard spool, but for light versions it definitely helps reduce the chance of snarls.

@domwrap

Print Profile

PLA - 0.28mm layer

Printed in silver BBL PLA to try and recover a very badly wound refill from Bambu with which I could in no way close a regular Bambu spool. This does do the job thanks to its screw mechanism but found I get feed issues as the walls are flexible so filament gets pinched/trapped at the edges. Good, could be a little better. Fast print and came out nice tho. Seems a strange decision to me not to make the label plate smooth against the plate for a better bond instead of ribbed but it does work.

@Unigue

Thank you for the feedback. I applied the ribbing to the outside primarily to improve print time although I also like the aesthetic, but I do think I made it too deep on the label tag, reducing adhesion unnecessarily. I’ll reduce the depth of the ribbing on the next version. Wall flexibility is a tricky issue, I am specifically aiming for a fast printing light version, which at least at this extreme leads to more flexible walls. They have not given me trouble yet, but I also haven’t tried them with particularly problematic spools. I think I’ll make a seperate version entirely with strength and usability as the primary focus with lightness and speed as secondary objectives.

@user_2336477213

Boosted

The model printed really well. I like the design a lot. I do think that the center section should be about 2mm narrower to lock the filament in. it would also be nice it it was a little bit narrower to run in the AMS better. The filament rim is a game changer and could be slightly raised to accommodate the slightly narrower spool. I would also like to see the hub section about 3mm thick rather than the 1.5mm. I had a tight 3rd party spool core that was tighter and managed to sheer off one of the hubs. Overall a really good design and I look forward to version 2.

(Edited)

The designer has replied

@Unigue

Thank you for the boost and the detailed feedback, I really appreciate it. I’ve just about finished V2 and will upload it tomorrow. I’ve narrowed the spool center by 1.5 mm, I think 2mm might cause conflict with the cardboard insert. I’ve also decreased the thickness of the sides by 1 mm, making the whole spool 3.5 mm narrower so it should be fine in the AMS. I also increased the base of the hub thickness, but not the whole hub wall so I’ll have to see if people are still able to shear it off, if needed I’ll strengthen it more in the next update.

@Xeroxorex

Replying to @Unigue :

Have you had any feedback about ABS? I was considering using something I could throw in a dryer without fear.

@Unigue

Replying to @Xeroxorex :

I have not, I only have an A1 so I stick to PLA and PETG, but if you get a print working in ABS or ASA it would be cool if you could upload the print profile. I’d expect it to work fine, and as you say, being able to throw it in the dryer would be nice.

(Edited)

@tiagolcorreia

Boosted

What is the dimension? Please, I want to know if it will fita right in the enclosure for ams lite.

The designer has replied

@Unigue

*Edited - see last response, current dimensions 66.5x196mm* 70mm deep, 200mm accross. What are the internal dimensions of the AMS lite enclosure? I haven't got around to making one for myself.

(Edited)

@tiagolcorreia

Boosted

Could you make it arround 6.3mm deep and 190mm or sent me the files so I try to do it, please?

@tiagolcorreia

Boosted

I will measure the enclosure. And by the way, this is the best spool I found so far, I wiil boost for sure.

@B_lab

Boosted

Print Profile

PETG - 0.28mm layer

Thank you for sharing, printed a test with a 0.6mm nozzle

Show original

@Unigue

Thanks for the boost! Did the 0.6 nozzle speed up the print time?

@B_lab

Boosted

Replying to @Unigue :

It significantly reduces the estimated printing time by one-third, happy printing

Show original

@Unigue

Replying to @B_lab :

Good to know, thanks!

@bupson

Boosted

Print Profile

PLA - 0.28mm layer

Great quick spool that didn't take much filament! I had a PLA support material sample that came with my printer, but I wanted to use the original Bambu spool for better filament refills, and this spool did the trick! It's plenty sturdy, used less than 100g of cheap basic PLA, and the integrated filament clip is something I wish the original Bambu spools had. My only gripe is that it's a bit of a tight fit in the AMS, and it kinda grinds the sides a bit.

@Unigue

Thanks for the feedback! *Edited* misread your response at first. Is it rubbing along the rim, or the entire side? I could shave a little off the sides, but the increased side thickness dramatically improves rigidity which helped me keep the weight down.

(Edited)

@bupson

Boosted

Replying to @Unigue :

The refill spool fits fine, it's the outer part of the spool rubbing the AMS. It seems to be just the rim

@user_443639875

Print Profile

PLA - 0.28mm layer

Light and resilient parfait

Show original

@DelPrints

Boosted

Print Profile

PLA - 0.28mm layer

Came out nice

@Unigue

Thanks for the boost and the pics!

@3m1l

Print Profile

PLA - 0.28mm layer

very good and money saving

@Unigue

Thanks!

@artj

Boosted

Print Profile

PLA - 0.28mm layer

The pool is actually much sturdier than I thought it might be .

@Unigue

Yeah, I’m never sure how much to hype how sturdy it is lol. I think it is much sturdier then it looks in the pictures, but it is still a light weight spool and not nearly as rigid as the original.

License

This user content is licensed under a Standard Digital File License.

You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.

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Comment & Rating (230)

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