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3D Printed Metal Fuel Injector

This cut section fuel injector is one of my favourite demo metal 3D prints. It does an excellent job showcasing the brilliance of the technology. This would have been a complex assembly of different parts which would need to be bolted and screwed together. But thanks to the design freedom offered by 3D printing, this is just one part and comes out of the 3D printer as you see it in my hand.