This is a wall mounted keyboard holder for Logitech K400 (tested with K400r and K400+).
You can set it to what angle you prefer (30, 45, 60, 75, 90 degree relative to wall), or fold it up to take even less space. You can remove the keyboard from the holder by just grapping it in the back and pulling it up.
Non printable hardware needed:
6x M5 25mm screws
6x M5 nuts
4x Screws etc. for wall mounting, max 5mm thick countersunk with a max 10mm wide head
The vertical spacing between the holes is 189mm, the horizontal spacing isn’t super picky, just put your keyboard in and measure what feels right to you (mine is at 262 mm). But keep in mind there is no height adjustment, so figure out how high you want it before drilling any holes in your walls.
Filament brand: Prima Easyprint
Filament material: PETG
The printed hinge pins felt tight enough to me, if they feel loose to you and you want to secure them more print the use the printed washers and put a piece of filament through the pin and bend it so it can’t fall out.