1) It has to be BIG
2) You have to KNOW that it's BIG
3) You do it ANYWAY.
Now it's time to sew all 800 pairs of vanilla + color triangles. I'm ready to repent.
First, pull out 80 triangle pairs (four for each block), in any random colors. These get sewn into bigger triangles, like the photo. Half of them need to be left-handed and half right-handed.
All the rest of the triangles pairs get sewn into bias squares. Again, half left-handed and half right-handed. (Just kidding about that, though the left/right thing will get to be very important, and possibly very aggravating, in the next step.)
To be continued ....