Semiautomated powered wire-wrap systems place "wire-wrap guns" on arms moved in two dimensions by computer-controlled motors. The guns are manually pulled down, and the trigger pressed to make a wrap. The wires are inserted into the gun manually. This system allows the operator to place wires without concern about whether they are on the correct pin, since the computer places the gun correctly.
Semi-automated wire wrapping is unique among prototyping systems because it can place twisted pairs, and twisted magnetically shielded quads, permitting the assembly of complex radar and high speed digital circuits.