Can I ask you some questions?
(1) I may have been scatterbrained and missed some directions in the book, but am I right in assuming that each time before you cut a new strip of the 6-layer or 8-layer fabric pile, you go through the whole process of pinning through them vertically here and there, so as to make sure the patterns all line up?

(2) This is a question about the instruction to place the triangles in such a way that the straight of goods comes on the outside of the hexagon, while you sew the triangles together along the bias lines.
I made the mistake of buying a striped fabric, so if I cut and sew the triangles exactly as the book directs, every hexagon is going to have radiating spokes in it, slightly varied, because of the stripes, but basically like this:

So I decided to turn the triangles for some of the hexagons, which means that I sew a bias edge to a straight-of-goods edge and all the edges of the hexagon are on the bias:

And then I decided I wanted some concentric-patterned hexagons, so I sort of fussy-cut more triangles:

My question is this: So far, so good. The hexagons themselves have come out more or less OK, but did the instructor say anything about *why* their outside edges should not be bias? Is the sky going to fall when I start stitching the background triangles to the hexagons and putting the top together?

Four have a HST.
Four have a strip.

2.No mention of bias at class. All that was mentioned about that was to be very careful when you iron to just press and not stretch your fabric..

Hope this helps I love you print.. It is so suprising how the same fabric can come out so different..

I use a water soluble stabilizer for free motion embroidery. I cut the excess off before washing and save it. I would grab some of that if I had two bias edges that needed to be sewn together and I was worried about stretching.

Glass, Thanks for that suggestion about the stabilizer. If I find the bias edges give me trouble, that's what I'll use, and what a good idea to cut the excess off before washing!

I agree with this One-Block author that I shouldn't use a pattern with a stripe or plaid as you have to try and line things up. I use large flowered or abstract things. I get in trouble with too many colors. They don't always blend well when you try and assemble the hexigons. It says to leave the offenders out and so far, I've only set a couple aside.

I love the watercolor-quilt aspect of this process and the placing them on the design wall like painting with them. With the hexigons, you have equilateral triangles so have three different arrangement of the six till you get one you like. I sometimes have spokes, sometimes bullseyes. I think the fun is in the surprises.

My only problem now is I keep finding more potential fabrics and the piles are growing. Better get busy hacking it up. I line each pile up carefully with the pins like mentioned previously and then as I cut off each triangle pile of six, I move pins as necessary to maintain the alignment. I just make little piles of the triangles offsetting each from another and take the stack to the machine.

Next I'm going to play with reversing every other triangle so it's no longer a pinwheel but something more abstract.

Please keep posting on this as you master the plan. I love hearing of what others are doing.