For anyone (including Sandra-P) looking for the cutting sizes for the Deb Tucker method, I found a
tutorial that gives the cutting sizes for a version that is not oversized. On page three it gives the formula for cutting the pieces, and then works through an example that finishes at 3" square.
Here are the formulas:
Cut two corner squares ½ inch larger than half the finished size of the unit.
For the smaller triangles cut two rectangles - ½ inch larger than half the finished size of the unit by the finished size.
For the larger triangle cut one rectangle the finished size plus ½ inch x the finished size plus 1½ inches.
Here's an example as if we were making two 10" squares (NOT the size in Bonnie's quilt).
1) Finished size = 10"
2) Half of finished size = 5"
3) Cut two squares at 5 + 1/2 = 5.5" x 5.5"
4) Cut two rectangles at 5 + 1/2 x 10 = 5.5" x 10"
5) Cut one rectangle at 10 + 1/2 x 10 + 1½ = 10.5" x 11.5"
Watching the Deb Tucker
video, it looks like she is trimming about 1/4" from each side of her oversized block, meaning that if she did not trim, that block would finish 1/2" inch larger than a "regular" block.
To get the cutting sizes for an oversized version for two 10" blocks, we work out the numbers for a 10.5" block
1) Finished size (pre-trim) = 10.5"
2) Half of finished size = 5.25"
3) Cut two squares at 5.25 + 1/2 = 5.75" x 5.75"
4) Cut two rectangles at 5.25 + 1/2 x 10.5 = 5.75" x 10.5"
5) Cut one rectangle at 10.5 + 1/2 x 10.5 + 1½ = 11" x 12"
Karen of "Just Get It Done Quilts" also has a
video showing the (not oversized) version of the method, and includes an interesting variant that allows one to make 8 finished squares at one go.