3D Print a 3D Printer: How-To Guide

I still remember my first 3D printer. A small Ender 3 in my tiny apartment. It worked, but it was loud, slow and took over the whole room. I loved printing, but the machine made everything harder than it had to be. So my first upgrade had one clear purpose. I needed something quieter and more reliable. That is why I moved to the Prusa Minis. They were not the fastest, but they just worked. After a while I knew every sound, every quirk, every fix. That alone made my workflow ten times smoother. A

What is the first reference to a 3D printer in science fiction?