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The most-liked Companion Cube on Printables is something you wouldn't expect: neil3dprints' mod that turns a Bambu Lab P1P printer into a Companion Cube, with 1,583 likes. For a cube you can hold, 3D Gloop!'s Weighted Storage and Companion Cube is the most-liked, and Making Changes' version needs no supports or multi-color printer.
How we ranked them. The PropBuilds Portal print library lists 60 Companion Cube files, all on Printables. We read each one live on October 1, 2026 and ranked them by likes. Every note comes from the designer's description.
The ten most-liked Companion Cube files
| # | File | Likes | Downloads | License | Good to know |
|---|---|---|---|---|---|
| 1 |
Companion Cube P1P Mod ( Bambu Lab ) by neil3dprints |
1,583 | 3,591 | CC BY-NC | Turns a Bambu Lab P1P printer into a Companion Cube, with an assembly guide PDF |
| 2 |
Portal Weighted Storage & Companion Cube by 3D Gloop! |
1,166 | 2,816 | CC BY | Both the Weighted Storage Cube and the Companion Cube |
| 3 |
D20 Companion Cube by TheSameNameTwice |
1,115 | 1,758 | CC BY-NC | A Companion Cube crossed with a D20 die; the designer printed it in PETG |
| 4 |
Companion Cube Plant pot and Planter - Vase mode design by SASSy Design |
805 | 2,408 | Printables standard | A plant pot and planter in vase mode, scalable |
| 5 |
Steam Machine Companion Cube/ Weighted Storage Cube Case by Jaron |
679 | 1,564 | CC BY-NC-SA | A Companion Cube case for the Steam Machine, with pre-painted 3MF parts or a filament-swap route |
| 6 |
MTG/TCG Deck Box Companion Cube & Life Counter (Commander, C by ScottyDoesKnow |
395 | 1,572 | CC BY-NC-SA | A trading card deck box with a life counter inside; optional magnets |
| 7 |
Companion Cube - modular, snap-together, colourized by Matt |
302 | 674 | CC BY | Snap-together cube split by color; the uploader made it as a cake topper |
| 8 |
Portal Companion Cube container & lid by chylld |
269 | 907 | CC BY-NC-SA | A box with a lid, in plain STL or a 3-color 3MF |
| 9 |
Companion Cube mold by firstgizmo |
262 | 356 | CC BY-NC | A mold for casting cubes in clay, concrete or play dough |
| 10 |
Weighted Companion Cube MMU by Julien Vanier |
251 | 596 | CC BY-NC-SA | A fidget spinner cube for six 608 skateboard bearings |
Likes and downloads are Printables' counts on October 1, 2026. CC BY-NC files are free for personal prints but not for selling prints, and ND files can't be remixed and shared.
Classic cubes
Making Changes made theirs for their kids after introducing them to Portal: accurate to the game, nothing needs support, the parts are glued together, and the tolerances are built in for most printers. Matt's snap-together cube (Andrew Lindsey's design) is split into white, pink and grey files, and was made as a cake topper. TheSameNameTwice's D20 Companion Cube crosses the cube with a D20 die. For something big, Mr. Volt's life-size cube prints its corners and bumpers but isn't fully 3D printable.
Companion Cubes that do something
- P1P printer mod: turns a Bambu Lab P1P into a Companion Cube, with an assembly guide PDF.
- Steam Machine case: pre-painted 3MF parts for multicolor printers, or pause and swap filament on a single extruder.
- NAS enclosure: about 220 x 220 x 220 mm, printed without supports with a 0.6 mm nozzle.
- Trading card deck box with a life counter inside, optionally held with magnets.
- Fidget spinner cube that takes six standard 608 skateboard bearings.
- A box with a lid, a vase-mode plant pot and earrings or a keychain.
Casting your own
firstgizmo's mold casts Companion Cubes in clay, concrete or play dough, and trutgers' mold makes a concrete succulent planter.
Finishing
Cubes printed in one color need paint for the pink hearts; prime first with filler and sandable primer, and use a gel super glue for the glued versions. The finishing guide covers painting, and the Portal print library has every cube, portal gun and turret.
FAQ
What is the best Companion Cube to 3D print?
The most-liked Companion Cube file on Printables isn't a cube to hold: it's neil3dprints' mod that turns a Bambu Lab P1P printer into one (1,583 likes). For a classic cube, 3D Gloop!'s Weighted Storage and Companion Cube (1,166 likes) and Making Changes' easy-to-assemble cube are good picks.
Can I print a Companion Cube without a multi-color printer?
Yes. Making Changes designed theirs to be accurate to the game and easy to assemble without multi-color printing: nothing needs supports and the parts are glued together. Matt's snap-together cube is split by color into separate files.
Is there a Companion Cube case for the Steam Machine?
Yes. Jaron's unofficial Steam Machine case comes with pre-painted 3MF parts for multicolor printers, and can be printed on a single extruder by pausing to swap filament.
What useful things can I print as a Companion Cube?
A NAS enclosure (about 220 mm on each side), a trading card deck box with a life counter, a plant pot, a box with a lid, earrings or a keychain, and a fidget spinner that takes six skateboard bearings.
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Header photo: Portal Weighted Storage & Companion Cube by 3D Gloop! on Printables, licensed CC BY; cropped, with an overlay added.