This is the second sheet of patterns in this series. All of these patterns are based upon a 30-60-90deg triangle. These are straight forward patterns and require very little by way of measuring.
The first three patterns are variations on each other. The variations are achieved by changing the starting points and/or the omission of lines. The only other controllable element is the offset of the triple line portions.
The remaining two patterns require the layout of a square grid. The size of the squares in the grid dictates the individual pattern. The direction of the pattern or the omission of lines is what generates the overall pattern.
I think it’s quite remarkable how simply changing the direction can generate a completely different looking pattern. You can also use shading to reveal diamonds, stars and pinwheels as well.