Space Capsule Pencil Case - Free 3D Print Model

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REX3D

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Magnet with D=5mm, H=3mm Version

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3.2 h

3 plates

4.8(68)

Magnet with D=6mm, H=2mm Version

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3.3 h

3 plates

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Open in Bambu Studio

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Round Magnet

Description

Design Concept

This is a pencil case with a strong sense of technology, using a magnetic closure design. When closed, it resembles a sleek space capsule, with a zigzag lid that mimics the door of a spacecraft.
The pencil case measures 180mm x 56mm x 30mm, making it highly portable. It can hold 8 standard-sized pens plus an eraser.
The inner side of the movable lid includes a mesh compartment for sticky notes.
When opened, the base expands, allowing the pens to be laid flat for easy access.

Printing and Assembly

The mesh compartment of the pencil case is designed to be elastic, requiring PETG material for printing. A 0.2mm nozzle will provide better detail for this part.
The top and bottom lids use a magnetic closure design, which requires cylindrical magnets with dimensions of D=5mm and H=3mm. After applying a small amount of glue, the magnets should be inserted and secured in place.
The pencil case has built-in supports. If there are any filament residues, you can use a small utility knife to carefully cut along the residue lines.
The vibrant horizontal lines on the pencil case need to be glued to the main body. A small extended part is designed for easier positioning and adhesion. If using quick-drying glue, make sure to quickly complete the alignment and adhesion process.

Recommended Materials

It is recommended to print the main body of the pencil case with PLA, as PLA has a lower shrinkage rate. Using PETG for the mesh part will provide better elasticity.

UPDATE 20250220 --AMS Multi-Material Version Removed

The AMS version has been removed because material switching caused significant layer time variation, resulting in noticeable layer shrinkage marks on the outer side of the top cover, which affected the overall appearance.

UPDATE 2025-03-14 A version of the magnets with D=6mm, H=2mm has been added.

UPDATE 2025-11-16

Updated the mounting tolerances for D5×3 and D6×2 magnets; increased the thickness of the elastic mesh to improve flexibility; applied minor shrinkage compensation to the pencil case lid so the printed edges come out straighter.

UPDATE 2026-01-09

Support settings have been adjusted, making supports easier to remove.

pencil case

slim pencil case

Comment & Rating (129)

@twentytwo14

Print Profile

Magnet with D=6mm, H=2mm Version

Had to print this too. Superb print, love it. Printed in PLA-CF and bambulab cobalt blue.

@DJ_Timoy

Love the "future" vibe to it! Adding a Fuzzy Skin texture really enhances the elastic feel when closing the case. Only issues were, the support material was tricky to remove (maybe my filament was too good!) and the gel glue I had was a bit messy. Still, I think its the nicest case we can print so far! As a follow-up to the awarded MagicExpand, this one seems ready to stand the test of time 🚀

(Edited)

The designer has replied

@REXXU

I'm really glad you like the futuristic vibe and the pencil case itself! I never thought of giving a pencil case a fuzzy skin texture — it must feel really nice in hand! I've also adjusted the support settings: the contact area is now more integrated, making it easier to remove than before. Thanks so much for trying it out and sharing your experience!

@sgchild9

I don't know if anyone else has had this issue with the D5 magnet profile but after printing a case twice, there is a messed up couple of layer lines right after the triangle cutouts. Printing the D6 profile worked flawlessly and looking forward to assembling the latter profile - great looking design. Just not sure what's going on with that D5 profile, if anyone has any thoughts..

The designer has replied

@REXXU

I have updated some details and re-uploaded D5 and D6. If you would like to use the D5 version, you can test it by printing partial section. I have reprinted it on my side, and no problems have occurred so far.

(Edited)

@JensNeumann

Print Profile

Magnet with D=5mm, H=3mm Version

Beautiful design. Thank you!

The profile uploader has replied

@REXXU

Thank you for the photos !

@LeFez

Print Profile

Magnet with D=5mm, H=3mm Version

Super pencil case. Love it! Looks sleek and magnets work wonderfully.

@jp.potter

Boosted

Print Profile

Magnet with D=5mm, H=3mm Version

printed I tricolor pla and silver petg for the accent pieces. turned out great!

@DesmOwen

Print Profile

Magnet with D=5mm, H=3mm Version

very nice fits well

@enix1337

Boosted

Print Profile

Magnet with D=5mm, H=3mm Version

rly Cool Thx!

@Orochi_Nik

Boosted

Print Profile

Magnet with D=5mm, H=3mm Version

Perfect!

@user_122616044

Boosted

Print Profile

Magnet with D=6mm, H=2mm Version

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.