This is a simple laptop stand model that I made in Fusion 360 and 3D-printed for a school project. My original design was intended for my 16-inch HP Victus laptop, but it's also suitable for smaller laptops. I'm not sure if it would work equally well for larger laptops. It's simple to disassemble and very sturdy. Please print two copies of the first base plate.

Feel free to modify the file to make it fit your scenario.