"Stuff made here" has a video where he fools around with that idea. Worth checking out imo

I would assume, you have a standard text. That you handwrite. Then scan, so that the 3d printer can write in your handwriting!

All that for nobody to be able to read my crappy handwriting ;)

As part of the copy chain, you need to feed the ChatGPT output into a handwriting neural network you trained in your own handwriting, then have the 3D printer draw it.