Filament Spool Winder Auto Tensioner for Bambu Lab - Free 3D Print Model

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Remixed by

psychoshaft

3D Printer>3D Printer Accessories

IP Report

Print Profile(1)

All

X1 Carbon

H2D Pro

P1S

H2D

A1 mini

P1P

P2S

X2D

X1E

H2C

H2S

A2L

0.2mm layer, 2 walls, 15% infill

Designer

2.6 h

3 plates

4.8(40)

Open in Bambu Studio

Boost

158

418

632

201

Released

Description

Automatically tensions your donor spool during winding for clean, even wraps every time. Designed as a mod for Bambu Lab AMS spool winding setups.

Supports spools up to 80mm wide.

V2 now available — more tension adjustment settings, less hardware required.

Print settings:

TPU recommended for the friction block (2 outer walls, 15% infill)
No supports needed except two built-in breakaway supports on the Attachment Block

Hardware required (V2):

2 × M3 × 10mm screws
2 × M3 heat inserts (D5.0 × L4.0 — Voron spec)

If mounting without wood backing, glue over the two mounting holes instead.

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Build Video below!!

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Supports up to 80mm Wide Spools, i put a lot of time into making this so don't forget to share your photos setup and give my model a honest review! allways open to making improvements! ( i am a new 3D CAD developer)

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rewind spool rewinder

ams accessory

winding mod

filament storage

Comment & Rating (52)

@Bruce_Boyd

Boosted

Great Build, I agree that there is some strength issues so I will detail what I did to enhance the build. Im not a fan on printed pins, two of which broke off in assembly. I replaced all the pins except for the top 4 on the pads they were ok, with brass heated inserts as follows: - changed the bottom two screws and knobs to: 2 - M3 x 16mm Round head screws 2 - M3 Heated Inserts 4 - M3 Washers 2 for each Arm Needed to add space to accomodate the Spring Centre Screws as follows: 2. Removed both spring centre pins (one broke off) - replaced them with Flat head screws so I could countersink the hole in the spring flush to the outside of the spring so that they would not rub. 2 - M4 x 12mm 2 - Brass Heat Inserts 3. The second pin on both Arm that attatched to the spring also broke off, drilled out and replaced them: 2 - M3 x 12MM Round Head screws 2 - M3 Nylon Lock Nuts 4 - M3 Washers ( Left snug so spring could move) 4. Screwed the Tensioner to the Filament Spool Winder 2 - M4 x 12mm 2 - M4 Nylon Locking Nuts 2 - M4 Washers Note: Screwed inplace from the Bottom with the washer under the nut.

The designer has replied

@Bruce_Boyd

Boosted

Hi Paul, The pin broke off when I used my Drill I was go slow but the filament was so wet it swelled up causing the spool to expand, never saw that before. I think I was pushing it limits, hey that what I do, I’m retired and have 2 X1C and a CRX printer, I was a fabricator in a past life and love to improve on a project. Your design came out great, I found the slider moves back and forth too quickly, I haven’t counted how many rows of filament are on a new spool but the render lays down maybe half, any ideas?

@psychoshaft

Replying to @Bruce_Boyd :

Hello Bruce, I have to admit, I'm still quite new to design—I really approached this whole project with a bit of trial and error. That said, mine is still holding up well with the original 3D-printed pins, though perhaps increasing the density might help? I’m aware there’s a slight alignment issue, but given my skill level, I’d likely need to start from scratch to fix it properly. I truly appreciate your support and the boost you've given to my project—it means a lot. Also, I sincerely apologise for the delayed response to your messages. Thanks again for your patience and encouragement!

@user_3605537997

Boosted

Its working!

@ryan20021982

Boosted

Print Profile

0.2mm layer, 2 walls, 15% infill

Took your tensioner and made it work on a spool holder I already used, works awesome and went together perfectly. Thank You

@KingOcho

Print Profile

0.2mm layer, 2 walls, 15% infill

works like a charm

@ron.kellis

I hope this is a positive critique. When updating/revising a model, the date would be very helpful. We would know if some of the comments don't apply to the posted version. Provide the width between the mounting holes. Clearly state if the base is from the model you remixed because it's needed. And the date of the file you remixed. If Vinrisa makes a change and you don't catch it, we can double check if the file you remixed from has changed. Looking forward to printing it next.

The designer has replied

@psychoshaft

Hello Ron, The latest version is included on the provided print plate. I agree the naming could be clearer it's a challenge to maintain a consistent convention with how rapidly 3D printers evolve

@Bruce_Boyd

Boosted

Please see my post

The designer has replied

@psychoshaft

Hey Bruce! ive seen what you have done here! looks great. Did you print using ABS or PLA? I am trying to understand why you had issues with the pins breaking, I am still using my winder daily and mine have never failed yet. i think your version is great you should post a remix of it. Kind Regards Paul