Additive manufacturing of an ion optical device

A method of manufacturing an ion optical device, the method comprising:

• printing the ion optical device in a printing direction from a first end to a second end, including a first end support at the first end, a first set of rods extending from the first end support and formed with a first set of rings, a second set of rods extending from the first end support and formed with a second set of rings, and a second end support at the second end to which the first and second sets of rods extend;
• and
• cutting the first and second end supports away from the ion optical device to thereby define a first electrical circuit through the first set of rods and the first set of rings and a second electrical circuit through the second set of rods and the second set of rings, wherein the first electrical circuit and the second electrical circuit are electrically isolated from each other.