I think the usual answer is to make it sort of like a log cabin, start with a triangle and then one piece to the end, then the next piece. Typically you would use strips and then cut it along the sides.
This seems to be a pretty good example, it doesn't show you making long rows and then connecting them together.
https://www.youtube.com/watch?v=ov9HVgvGV60
I do have a pattern for the harder/more traditional version from back when I was collecting ties. The lady who sent me it did it as hand work and the set in seams weren't an issue for her.