litmus test wise, regulators of 3d printing should be able to create strong parts with a variety of 3d printing mechanisms. they should at least be able to und

litmus test wise, regulators of 3d printing should be able to create strong parts with a variety of 3d printing mechanisms. they should at least be able to understand that a 3d printer is akin to a turing machine and what the real limits are - strength of the printed material vs length of the strip of memory.