Companion Cube Upgrade 3D printable model by Landru

Companion Cube Upgrade

Source: Thingiverse by Landru

The Companion Cube Upgrade is a free printable 3D model from Thingiverse by Landru. This is an exactly proportional copy of the companion cube from portal, as traced from a screenshot. You can download the STL file from the original listing below and print it at home.

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7,691 saves Source: Thingiverse Updated 2026-09-06

Tags: Companion, Cube, Upgrade

About this model

This is an exactly proportional copy of the companion cube from portal, as traced from a screenshot. There were a few cubes already on thingiverse which I've printed out dozens of, but they all had some issues with printability or proportionality. I think I've solved all the problems with this version. This version is flat bottomed, and has no significant overhangs over 45 degrees. It is carefully designed in Solidworks so any changes can be quickly and easily made. I also included step files since Solidworks is pretty unfriendly to a lot of other programs. The default size is exactly 1in^3 The Cube in the thumbnail was printed by a Fablicator. www.Fablicator.com

Frequently asked questions

Is this 3D model free to download?
Yes. Companion Cube Upgrade is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link above to open the original listing.
Where is the STL hosted?
The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by Landru.
Who made this model?
Designed by Landru, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?
Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.

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