There's been lots of progress on DIY/academic maskless photolithography by using TI digital micromirror devices from projectors to reflect light into a microscope for exposing photoresist. They even sell a UV version that is just for this purpose (maskless light manipulation in general). As usual, the bigger issue is alignment between steps and the etchants.

Still don't know what it has to do with 3d printing, except the article sounds like GPT3 mindlessly connecting lithographic resin 3d printers and semiconductor photolithography, with a Google Scholar search on those terms as a data set.