Silica Dry Box for Spools

Search models, users, collections, and posts

Muffinhead

3D Printer>3D Printer Accessories

IP Report

Print Profile(4)

All

X2D

H2S

X1E

X1 Carbon

P1S

P2S

H2D Pro

H2D

A1 mini

P1P

H2C

A2L

V3 Silica Dry Box Set

Designer

2.4 h

1 plate

4.8(121)

V3 Silica Dry Box w/o Humidity Sensor

Designer

57 min

1 plate

4.9(178)

V3 Silica Dry Box w/ Humidity Sensor

Designer

1.3 h

1 plate

4.8(84)

A1 Mini - PETG - 0.2mm layers, 3 walls, 15% gyroid

2.5 h

1 plate

4.7(9)

Open in Bambu Studio

Boost

535

1822

460

233

2.4 k

1.8 k

Released

Bill of Materials

Maker's Supply Kits and Parts

Select all

Circular Embedded Electronic Digital Thermometer Hygrometer

Description

Keeping filament dry is essential for optimal 3D printing. While traditional containers fit inside the spool’s center, they’re not ideal for use with vacuum bags, as they can seal off airflow and give inaccurate humidity readings.

This custom-designed silica box sits directly on the filament, effectively lowering the surrounding humidity. A humidity sensor can be placed next to the silica for accurate readings. The box holds approximately 20 grams of silica, perfect for a single spool. For added flexibility, there’s also a version without a sensor slot to increase silica capacity.

Rotatable Sensor: Adjusts 90° for vertical or horizontal storage.
Universal Fit: Designed to fit most spools, even when full.

Now also works with hydrometer from Bambu Lab!

Please leave a comment and rate if you find it useful. Happy printing!

Boost Me (for free)

V3 Update (29/04/2026): Horizontal and vertical slots added for Hydrometer supplied by Bambu Lab

V2 Update (30/06/2024): Added lid notches for a tighter, more secure fit.

Comment & Rating (460)

@user_587724760

Boosted

It turned out very well. I added a filament clip – now the box also stays in place.

Show original

@D3BuGu

Do you mind share the model, I like the idea to be able to hook on the rim

@Mady0

Replying to @D3BuGu :

I believe it looks like they printed a filament clip separately (looks to be a clippy) and super glued it on

@NaughtyShepherd

Boosted

Love this! Works perfect, I have most of my filament at 15% humidity now :) Having the smaller piece for the opposite side of the spool roll insures full coverage. Thank you!

The designer has replied

@Muffinhead

Thanks for the boost and the comment!

@Pitrstar

Print Profile

V3 Silica Dry Box w/o Humidity Sensor

Very good project :)

@phillipmoak

Do you have an stl file for the one like you show with the sliding lid?

@tarikkmrc2014

Replying to @phillipmoak :

Silica box for Bambu Lab spool storage by Tassesin

@ZenithUK

Print Profile

A1 Mini - PETG - 0.2mm layers, 3 walls, 15% gyroid

I use spool cores most of the time in my vac bags. I wanted dessicant and a hygrometer by the filament inside the bag to get a visible reading. Thank you.

The profile uploader has replied

@Veridor

While I take zero credit for the model design, I'm glad my PETG print profile for the A1 Mini helped! Thanks for the comment and rating it.

@eladio_tercios

Print Profile

V3 Silica Dry Box Set

Works really great! The only issue is that my hygrometers seem to be a bit different, they have the notch placed vertically and horizontally, so it shows tilted in this model. No big deal

The profile uploader has replied

@Muffinhead

Try the new profile, it have more cutouts!

@EikiE

Boosted

Print Profile

V3 Silica Dry Box Set

perfect for my filament storage

Show original

@tastrickland

Boosted

Print Profile

V3 Silica Dry Box w/o Humidity Sensor

Print works well and the lid is a tight snap fit (PLA) for the holder w/o hygrometer. I would find larger sectors (i.e. 45 degrees) useful rather than printing out two or three of the smaller ones per spool. I'm a newbie so I'm not sure how much dessicant is necessary to keep the filament dry after a session in the dehydrator. The photo shows a Hatchbox PETG spool with two containers sealed in a 1-gallon Foodsaver vacuum bag.

The profile uploader has replied

@Muffinhead

I only have the one with the humidity sensor and it is keeping the filament dry just fine.

@clausm2

Print Profile

V3 Silica Dry Box w/ Humidity Sensor

It was difficult to mount the hygrometers sourced from Bambu Labs. And after a few hours they all cracked. Design seems good and well thought out. Lids fits really well and sticks well in place. But need a slight adjustment to accomodate the Bambu Labs hygrometers.

(Edited)

@mikimiklos

Just an easy print, everything fits perfectly. Now my rolls are not only packed away but also protected from moisture. Thank you very much for your great work.

@Stampa3DH24

Print Profile

V3 Silica Dry Box w/o Humidity Sensor

perfect print! Thank you for the project, very useful!

Show 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.