She does not, in fact, know those 3D printers. Not even a little bit. She can, however, infer from context. The name is very self-explanatory. As is the functionality of making replacement parts for things.

She walks over to the area that he was hovering near before her arrival, and to the machine she assumes is the most likely candidate. It all looks well beyond her scope of experience, but this whole place falls into that category, and she really doesn't have any choice but to slog through.

"So if you fix it, you'll be able to fix other things around here? Maybe we can get some more of those doors open." That would be amazing. "How badly is it broken?"