I am also doing this pattern, but I ordered the pre-cut hexagons from a
place in WA (I think) so this saves me a lot of time. They are made from
a heavy paper, I baste the fabric to the shapes, and remove the paper when
I am done sewing on all sides. It seems to work well. If anyone wants
the address of the company which makes these (and many other shapes),
please let me know. I learned of them in my guild.