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Setting blocks on point.

Setting blocks on point.

Old 06-09-2010, 07:00 AM
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Help!! I'm making a panel to use as a valance for my kitchen window. It will be D9Ps on point (I hope!). How do I figure for the size of the setting triangles? My block is not a usual size. The squares are cut 4" so the block is 10 1/4" square (well, give or take a few...). As Mary Ellen would say, "It's my measurement. Would cutting a 10 1/2 " square be big enough. I don't have fabric to waste, so I'm trying not to cut and experiment. Can anyone help? Thanks in advance.
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Old 06-09-2010, 07:05 AM
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finished block size X 1.414 + 1.25 = cut square
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Old 06-09-2010, 07:07 AM
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I knew some math whizz would hop to it and enlighten me. Thank you sooooooo much. I'm going to get right on it. Thanks, thanks, thanks, and God bless you.
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Old 06-09-2010, 07:12 AM
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You will find great information on Quilters Cache
http://www.quilterscache.com/H/howto...triangles.html
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Old 06-09-2010, 07:17 AM
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this information comes from a book called "Complete Guide to Quilting" from Better Homes and Gardens.

to calculate the size to cut a square for SIDE triangles:
multiply the finished block size by 1.414 and add 1 1/4" seam allowance. (for example 10" block X 1.414 = 14.14 + 1.25 = 15.39 rounded up to the measurement would be 15 1/2" )
then cut the 15 1/2" square corner to corner twice to make 4 side triangles.

to calculate the size to cut a square for CORNER triangles:
divide the finished block size by 1.414 and ad .875" for seam allowance. (for example 10" block divided by 1.414 = 7.07 + .875 =7.945 rounded up the measurement would be 8" )
cut the 8" square corner to corner to make 2 corner triangles. You will need 2 squares to equal 4 corner triangles.

I hope this helps. Grab a calculator and go for it. I have cut samples of paper before cutting my fabric just to make sure.....cuz my math skills ....ummmm....suck.
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Old 06-09-2010, 07:23 AM
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Originally Posted by redpurselady
You will find great information on Quilters Cache
http://www.quilterscache.com/H/howto...triangles.html
Wow thanks!! I needed this info also. I've learned so much on this board!! :-D
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Old 06-09-2010, 07:24 AM
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you could cut some newspaper squares and experiment.
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Old 06-09-2010, 07:26 AM
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I though corner squares were only cut once? so you need to cut 2 squares?
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Old 06-09-2010, 07:37 AM
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Originally Posted by brushandthimble
I though corner squares were only cut once? so you need to cut 2 squares?
MY BAD !!!!! yes, corner squares are cut once - you do need 2 squares!


I went back and corrected my original reply.
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Old 06-09-2010, 09:04 AM
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wow, I learned something today, thanks everyone
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