PBLBJL wrote:
After setting my Halo Star block on point, my piece measures 25 1/4" square instead of 24 1/2". I don't know where the difference came from, because my center was 16 1/2" unfinished, border is 1/2" finished and I cut my setting triangles from 13 1/2" squares. Would it be correct to trim 3/8" off each side to get it down to 24 1/2" or do I adjust with the next border/floater?
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I would wait for the next step. After you make the sawtooth borders you can still cut it down if you need to. It may be OK just the way it is.
In checking your numbers, if the star was 16" finished and you added a 1/2" border, the center would be 17" finished so the triangles should have been cut from 13" squares, not 13.5". That would explain some of the extra size.