3D Print Fully Functional Loudspeaker এর ফ্রি ভিডিও দেখুন

the fully functioning loudspeaker, seamlessly integrates the plastic, conductive and magnetic parts, using only 3D printers.
to see the original designboom article, see here:
designboom.com/technology/cornell-researchers-3d-print-a-fully-functional-loudspeaker/