Super fast metal 3D printing by high-voltage spark driver like CRT ball screen to weld

 Super fast metal 3D printing by high-voltage spark driver like CRT ball screen to weld. High-voltage current is released like sparks.a put the anode into the metal base, sprinkle 1 layer of metal powder. Use beam drive and high voltage current as in CRT ball screen, zoom to the anode to solder metal dust to the base. Drive high-voltage steering beam to all positions.high voltage is strong enough like welding machine to heating metal dust to weld.in finished this 3D cut crushing layer, we sprinkle another layer of metal dust to print the next cutting layer. In 3d plastic, we use an anode metal shield to place on the plastic heated with Drive the rays in each spot to stick the plastic dust particles

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