Simple thing, but I love it. The text is all hershey generated in Inkscape, so it’s single stroke vectors. It’s a modified version of the explanation on Wikipedia.
The Pioneer plaque SVG is also available on wiki.
Interestingly, something got out of whack with the GF, and you can see that some text isn’t aligned properly. That’s definitely in the machine and not the art, the art is perfectly aligned. I don’t know if the motors are missing steps or what, but something’s amiss. I’ll go check my belts and rails.