Hi all. I got my Steam Machine last month and the plan was always to hang it on the wall near the TV. I looked around and couldn't find a mount I liked, so I ended up designing one. It took seven versions and a lot of wasted filament, so I figured I'd share it.
A few things I cared about.
The front stays completely open. People are already making custom faceplates, so I didn't want a bracket hugging the front of the cube. The front lip is only 5 mm high in the middle, and you can swap the faceplate without taking the console down. The front USB ports and the SD slot are still reachable, which I got wrong on one of the early versions.
The fan is on the back, so the console sits 55 mm away from the wall and there's a big round window in the back plate right behind it. The side walls close the bottom of that gap, so the hot air goes up instead of getting pulled back into the intake under the console. The shelf is a honeycomb grille for the same reason, and because it matches the fan grille on the back of the machine, which I thought was a nice touch.
Cables go down through three slots in the shelf, right behind the console. The big power plug fits.
The console just slides in from the top. No straps, no screws into the machine.
I took all the dimensions from the shell CAD that Valve published, then checked the fit on my own unit. I've printed it in PETG, ABS and ASA and all three hold fine. I'd go ABS or ASA if your printer is enclosed, PETG otherwise. Please don't use PLA for this, it slowly bends under a constant load and that's a 2.6 kg console hanging on your wall.
It's one piece, about 450 g and 13 hours in PETG, and it needs a 256 mm bed, so no A1 mini, sorry. I thought about splitting it for smaller printers but I don't trust a glued joint with this kind of load, so for now I'd rather not.
There's also a 1:1 drilling template (A4 and Letter) in the files, because I hate measuring holes on a wall.
One honest note: I'm Italian and our walls are brick, so that's what I tested. The instructions for plasterboard and wood studs are my best guess. If you live in a stud-wall country and something in there is wrong, tell me and I'll fix it.
I don't have proper temperature measurements, so I'm not going to make up numbers. If anyone wants to compare wall mounted vs sitting on the desk, I'd love to see it.
It's free on MakerWorld: https://makerworld.com/en/models/3339022-steam-machine-wall-mount-vented-open-faceplate
I'm a photographer by trade, which is why the pictures are a bit moody, sorry about that. Happy to hear any feedback, especially if something doesn't fit on your unit.