With widespread disappointment regarding the availability and pricing of Valve’s Steam Machine, influencers and creators have been mixing up ‘alternatives’ of various shapes and sizes. However, we think the Terk Box v1.1 looks like the closest alternative yet in design and spirit. The work, as spotted by Hackaday, appears to be a collaboration between Jacob Terkelsen, an ex-Tom’s Hardware contributor currently working for AMD, and a 3D printing and SFF PCs enthusiast who goes by the handle of 3DCatt.
Here she is, Terk Box v1. 1I’m working with the designer about future improvements, but for a first major revision and she’s now “complete”We added more ventilation in the back so the RTX 5060 is no longer choked.HMU if you want me to build you one. pic.twitter.com/PAt0WaBXGXJune 24, 2026
If you are a 3D printer owner, you can grab the source files for the Terk Box v1.1 direct from Printables.com. There you will find a parts list, which details the various screws, riser cables, and numerous other parts you will need. The .STL source files are all there, too, of course, under a Creative Commons license.
Specific component brands don’t seem to be suggested by the makers, which is probably due to the set of standards embraced by the various PC parts makers. However, we do note in the user comments some people may have had a hard time fitting their GPU. 3DCatt says the max length that will fit is “about 180mm long.” That isn’t all, though, as the recommended PCIe riser cable wasn’t long enough for some, depending on the GPU model. AMD’s Terkelsen chipped in that the build was suitable for his RTX 5060 LP graphics card, but he requested more room for a front 140mm case fan, among a few other tweaks.
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The current revision of the Terk Box measures 167 x 168 x 225mm. That may be close enough to the official machine (152 x 162 x 156mm) to justify the extra effort of doing this instead of finding an off-the-peg compact Mini ITX case. Some of the compromises with the Terk Box v1.1 appear to be the fussiness with GPU choice we mentioned above, and the less-than-ideal positioning of the CPU socket in relation to the PSU. However, both 3DCatt and Terkelsen have hinted at refinements on the way to v1.2.
Since they have already strayed from the cubic confines of Valve’s actual Steam Machine, I feel they shouldn’t feel too shackled to the design they currently have. I’ll be watching further developments with interest.
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In summary, this is a design much closer in stature and spirit to the original Valve effort, but it is definitely a work in progress. With the various component constraints, the DIY price for this won’t be the most compelling, either. Readers who are 3D printing and PC DIY aficionados, and we must have a few of those, might be able to contribute to the project with suggestions, tweaks, and remixes.
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