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Thread: I need help from a MATH WIZ

  1. #1
    Senior Member
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    I really hate to admit that I'm so awful with math that I have to ask for help for measurements....BUT I NEED HELP!

    My pattern will be the disappearing nine patch... and I need my blocks to be unfinished 12 1/2.

    What size would I need to cut my patches?
    Should I cut them 5', and then square up/cut my block to size?

    Thanks for your help!

  2. #2
    Power Poster amma's Avatar
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    Each block in the 9 patch is cut 4 1/2" :D:D:D

  3. #3
    Super Member Scissor Queen's Avatar
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    The problem is to get a D9P to come out exactly 12 1/2 you have to start with a really odd measurement that's nearly impossible to cut. Unless it's for a swap of some kind just let the blocks be the size they want to be.

  4. #4
    Super Member amandasgramma's Avatar
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    Yip!

  5. #5
    Super Member Scissor Queen's Avatar
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    Quote Originally Posted by amma
    Each block in the 9 patch is cut 4 1/2" :D:D:D
    Which makes a 12 1/2 inch 9 patch. You reduce it by another half an inch when you make it a disappearing 9 patch. So that makes it a 12 inch unfinshed block and only and 11 1/2 inch finished block. A half an inch does not divide well by 3.

  6. #6
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    Yep, sorry, forgot to mention the blocks were for a swap..

    I guess I should go large and cut down.

    Thanks everyone!

  7. #7
    Senior Member JackieG's Avatar
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    Working on one right now. Each square is 4 1/2 inches

  8. #8
    SHayes's Avatar
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    If you go large and cut down, be careful that you cut the same amounts from each side of your blocks or it will look like it is a little "off". Good luck with it!

  9. #9
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    If you wanted it to end up "unfinished" at approximately 12.5 inches, you might try cutting the pieces like in the attached drawing.

    Cut four 4.5 inch squares
    Cut four 4.5 x 6 inch rectangles
    Cut one 5 inch square

    A bit of an adaptation, but I think it would work.
    Attached Images Attached Images

  10. #10
    Super Member AnnaK's Avatar
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    I'm with Scissor Queen. Sometimes things want to be what they want to be. I won't stand in the way. LOL

  11. #11
    Super Member raptureready's Avatar
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    Personally I'd start out with 5" or squares then when I was all done I'd square it up to 12 1/2" That way there's no odd shaped blocks that you have to worry about them being turned the right way.

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