AMS Filament Hub Plug for A1/A1 Mini - Free 3D Print Model

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PixelFanLabs

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Print Profile(1)

All

H2D Pro

H2C

P1P

P1S

H2D

P2S

A1 mini

X1E

X1 Carbon

H2S

X2D

A2L

4 Versions - Easy Slip and Clean Closed - 1 or 2 PTFE

Designer

1.3 h

4 plates

4.8(30)

Open in Bambu Studio

Boost

244

277

251

Released

Description

Stop the Rattle, Block the Dust/Moisture: The Essential AMS Hub Protector!

I designed the AMS Filament Hub Plug after noticing a frustrating trend with PETG prints. If the A1 sat idle for even a day, I would hear "popping" and see bubbles during the initial calibration lines. This moisture ingress into the PTFE tubes was ruining the most critical first steps of my prints. While other plugs exist, I found they either didn't match the sleek A1 aesthetic or relied on thin, fragile overhangs for their "slide-on" functionality that didn't print well.

Whether you are looking to protect your filament from humidity, just want to eliminate that annoying toolhead rattle or just to have a cleaner look, this plug will solve your issues while looking like it came with your Bambu Lab printer.

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Features

Dust & Moisture Barrier: Seals the top of the Filament Hub to prevent dust and ambient humidity from entering the PTFE tubes and reaching the hotend while the printer is idle.
Anti-Vibration Design: Secures the black retaining collets to eliminate "rattle" or vibration noise during high-speed printing movements.
4 Design Options:
- Standard Version: Provides a clean, 360-degree seal for unused ports.
- Easy-Slip Version: Features a side-slit for quick installation or removal without needing to disconnect your existing PTFE tubes.
- Standard Version for 2 PTFE tubes
- Easy-Slip Version for 2 PTFE tubes
Snug Tapered Fit: Engineered with a 1.1° taper to ensure the plug tightens as it is inserted, creating a reliable friction fit that won't vibrate loose.
OEM Aesthetics: Minimalist design language and rounded corners to match the official Bambu Lab toolhead appearance.
Quick Alignment: Integrated chamfers on the bottom edge allow for effortless "blind" insertion.

Specifications

Compatibility: Bambu A1 and Bambu A1 Mini
Filament Type: Tested in PLA. Should work well with anything.
Filament Usage: less than 1 gram

Assembly Guide

Easy Slip Version:

Clean Closed Version:

Credits / Licensing

Design by PixelFanLabs – With a curious mind, integrity, and your hands in the soil, you can create anything.
License – All Rights Reserved
- Personal Use Only: You may print this for your own use.
- No Redistribution: Do not re-upload or distribute these digital files on any other platform.
- No Derivatives: Modification of this design—including the removal of the engraved PixelFanLabs signature—is strictly prohibited.

Comment & Rating (34)

@ksie_ni_art

Print Profile

4 Versions - Easy Slip and Clean Closed - 1 or 2 PTFE

It does its job.

@Ciosu

Print Profile

4 Versions - Easy Slip and Clean Closed - 1 or 2 PTFE

Perfect 🙂

@user_1800480319

Print Profile

4 Versions - Easy Slip and Clean Closed - 1 or 2 PTFE

Perfect, thank you!

@AnamurMuzu

Print Profile

4 Versions - Easy Slip and Clean Closed - 1 or 2 PTFE

good

(Edited)

@HardCheck_Bambi

Print Profile

4 Versions - Easy Slip and Clean Closed - 1 or 2 PTFE

@user_4273571495

Print Profile

4 Versions - Easy Slip and Clean Closed - 1 or 2 PTFE

Bed Adhesion Issue:needs a brim kept popping off table

The profile uploader has replied

@PixelFanLabs

Hi, were you printing onto a clean build plate? A brim should never be needed for prints that are only a few grams. I would also check the z height of first layer. Brims are usually used to prevent warping of large surface area prints or adhesion for tall prints with small first layer areas. I hope some of these tips helps.

(Edited)

@user_4273571495

Replying to @PixelFanLabs :

yes the plates cleaned after every use I have printed a few small things with a 3mm brim seems to help abit just for shapes that stack and lean in a one direction was just a thought is all I’ll try again and see what happens because I’d love this piece for my double wall mount

@PixelFanLabs

Replying to @user_4273571495 :

Just a though, are you seeing gaps in the first layer? That might be why it isn't biting onto the plate. Flow rate calibration would help if it more than just first layer with gaps. I found a calibration test for a low flow rate to show.

@FrAlphaOne

Print Profile

4 Versions - Easy Slip and Clean Closed - 1 or 2 PTFE

super

@OxOxJ

Print Profile

4 Versions - Easy Slip and Clean Closed - 1 or 2 PTFE

works excellent

@xvenom73

Print Profile

4 Versions - Easy Slip and Clean Closed - 1 or 2 PTFE

Perfetto!!

@FreezePTV

Boosted

Nice! Works perfectly

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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.