This is a stand that can keep your Steam Deck upright while sitting in this Steam Deck case from Tombert (or presumably any similarly-size Steam Deck case).
I use the above Steam Deck case because it's nice and low-profile, and it fits into luggage much better than the case that came with my Steam Deck.
I've decided to store my Steam Deck in the case while not in use as well, but if I want the charging cable plugged in, it sticks out from the top of the deck and requires me to lay the whole case open on my desk, which takes up a good amount of space.
I wanted to reduce the footprint of it on my desk, and also put my Steam Deck “on display” a bit more while charging, hence this stand. The stand keeps the device at a reasonably safe-feeling angle (I don't want it tilting forward and falling out!) and also allows the top of the case to lean against the top of the Steam Deck instead of having to lay it flat.
This stand could also be used to actually play the Steam Deck using a wireless controller while it's [semi-]safely nestled in the case.
I'm uploading this quite a while after I designed it, so I don't recall my print settings. But it was pretty straightforward. Print it on its side, no supports needed. Layer height of 0.20mm or something in that ballpark is just fine. I used PLA. Add a brim if the limited surface area of the side might cause bed detachment issues on your printer.
The author marked this model as their own original creation.