You can spot the zig-zag letters from their zig-zag lines. Let's look at the ‘V’ here. That down up movement makes the zig-zag. ‘W’ is the same, only with more diagonals. Down, up ...

The ideal arrangement is a looping figure eight pattern similar to an oscilloscope Lissajous figure, but cutting these is a nightmare. That is, unless you’ve got the proper tool. We figure ...