Hello everyone... so, I'm totally a newb to quilting. Since my current projects have a "this is how much fabric you get, no do-overs" I'm stressing out over measurements and cutting and wanted to get second/third/fourth opinions... lol.
My sister and I were browsing and she wants to use this as her inspiration (please, if anyone knows the webpage/quilter to give credit to, let me know. We were browsing on my phone and I didn't have the ability, or perhaps just the knowledge, on how to save the webpage to give credit from there):
It looks like a slightly more complicated version of an Ohio Star but I honestly have no idea what it's called.
My question is this... I want the center squares to be 4" finished so I'm cutting them to be 4.5" squared. Then the squares with the quarter triangles will be cut at 5.25" unfinished to make them work with the seam allowances. The smaller 1/8-sized squares will be cut from larger 5" blocks to get the seam allowances correct when I quarter them. But now here's my problem... What size are the smallest 1/8-sized triangles cut down from?
I just cannot wrap my head around accounting for the seam allowances and even drawing everything out on graph paper is no help.
To clarify, in the picture, the lower left hand block, I'm trying to figure out how to cut the smallest brown (and cream) triangles, what size should those unfinished, uncut, larger blocks be?