An e-beam generated from a cathode and passing through a perforated anode will strike a limited area of powder bed (PB), i.e., an area equivalent to the beam spot size, which is on the order of a millimeter or less. It will not help make parts bigger than the spot size unless the e-beam generator moves relative to PB or vice versa. Making parts by these relative movements can be helpful for investigating the effect of beam parameters on materials. But this has limited utility in a commercial application due to the lack of accuracy and speed. Another option is to displace the e-beam from its original path so it will cover a wider area of PB and be able to make bigger parts. Since an e-beam consists of charged particles, it can be displaced by an applied electric field. Besides, when the charged particle moves, it creates a magnetic field that can be displaced by an applied magnetic field. Hence, an e-beam can be displaced both by an applied electric and magnetic field, which is not possible for a laser beam as it does not consist of charged particles. These show that an electromagnetic field that has both electric and magnetic field components can be suitable for e-beam manipulation.