The NTL-3D viewer displays the µWave WizardTM schematics and netlist files. The viewer has no limitations regarding model size, structures and number of ports. It supports the design of even the most complex components, regardless of the individual coordinate systems of the key-building blocks. The NTL-3D viewer shows how elements or sub circuits are interconnected. An erroneous input will be flagged immediately by a red question mark inside the 3D-plot window. The export of .stl, .stp and .dxf output files allows for convenient post processing by external 3D solvers or for controlling CNC tools.