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Thread: Setting blocks on point.

  1. #1
    Super Member GailG's Avatar
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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.

  2. #2
    CAROLJ's Avatar
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    finished block size X 1.414 + 1.25 = cut square

  3. #3
    Super Member GailG's Avatar
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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.

  4. #4
    Senior Member redpurselady's Avatar
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    You will find great information on Quilters Cache
    http://www.quilterscache.com/H/howto...triangles.html

  5. #5
    Bottle Blonde's Avatar
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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.

  6. #6
    Super Member
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    Quote 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

  7. #7
    Power Poster
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    you could cut some newspaper squares and experiment.

  8. #8
    Super Member brushandthimble's Avatar
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    I though corner squares were only cut once? so you need to cut 2 squares?

  9. #9
    Bottle Blonde's Avatar
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    Quote 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.

  10. #10
    Google Goddess craftybear's Avatar
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    wow, I learned something today, thanks everyone

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