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Thread: Newbie Needs Help

  1. #1
    Super Member sustraley's Avatar
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    So, I don't mass up any more fabric---- I need help figuring out something for a block size. I need a 12 1/2 inch (12 finished) block. It has two 6 1/2 blocks (one each of two colors). The other two blocks are half square triangles. How do I figure out what to cut those for? I am sure this is pretty easy, but I am getting frustrated. Thanks so much for the help!! :oops:

  2. #2
    a regular here quilting cat's Avatar
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    Add 7/8" to the finished size when cutting a block in half diagonally for half square triangles. 6 1/2" + 7/8" = 7 3/8"
    I'm sometimes sloppy in my stitching, so I would cut a couple of 7 1/2" squares for the half square triangles, then trim the stitched squares after pressing them.

  3. #3
    Super Member sustraley's Avatar
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    Thank you so much. I never would have figured that out. The last one I did, I cut at 7 and that didn't work. I have no idea how to figure this type of thing out. Didn't learn that in my quilting class. :thumbup: :thumbup: :thumbup:

  4. #4
    Super Member Glassquilt's Avatar
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    You can draw the finished size, add the seam allowance on all sides and measure the drawing.

  5. #5
    Super Member crafty_linda_b's Avatar
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    Sue here is a good site that explains it...hope this helps you. You can bookmark it and use it for future reference. Click on the quick piece method. You will get 2 HST out of each of those. Be sure you square them up to the needed size. crafty_linda_b

    http://www.patchwork-and-quilting.co...triangles.html

  6. #6
    Super Member eparys's Avatar
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    This is a really good pdf:

    www.trishstuart.com/pdf_files/HSTmath.pdf

  7. #7
    Super Member sustraley's Avatar
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    Wonderful!! Thank you all very much.

  8. #8
    Power Poster debcavan's Avatar
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    Quote Originally Posted by quilting cat
    Add 7/8" to the finished size when cutting a block in half diagonally for half square triangles. 6 1/2" + 7/8" = 7 3/8"
    I'm sometimes sloppy in my stitching, so I would cut a couple of 7 1/2" squares for the half square triangles, then trim the stitched squares after pressing them.
    Oversizing and cutting down is great

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