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There are also calls for 3D printer manufacturers to block the printing of gun parts, in the same way that conventional printers restrict the printing of currency.

"But in the longer term we could put the lab-grown ingredients into a 3D printer and print off whatever you want on the space station, such as a steak!"

The first 3D printer in Gaza was smuggled in as parts about 10 years ago, said Dr. Tarek Loubani, a Palestinian-Canadian emergency room physician in London, Ontario.

Replacement light switch covers, Loubani said, were a popular early project for new 3D printer enthusiasts, because they were easy to print — and, for some reason, banned by Israel.

In a 2018 interview, he asked Italian journalist Francesca Borri: “Have you seen how brilliant our youths are? Despite it all. How talented, how inventive, dynamic they are? With old fax machines, old computers, a group of twenty-somethings assembled a 3D printer: to produce the medical equipment that is barred from entry. That’s Gaza. We are not only destitution.”