Welcome to the Quilting Board!

Already a member? Login above
loginabove
OR
To post questions, help other quilters and reduce advertising (like the one on your left), join our quilting community. It's free!

Page 2 of 2 FirstFirst 1 2
Results 26 to 32 of 32

Thread: can somebody please help me?

  1. #26
    Power Poster
    Join Date
    May 2008
    Location
    MN
    Posts
    21,326
    I realize I should have put this in at the beginning.

    I drew the seam allowances in.

    The amount of line BETWEEN the circles should be the same.

    Maybe this will help show why this works like it does.


  2. #27
    Power Poster
    Join Date
    May 2008
    Location
    MN
    Posts
    21,326
    notice that the edges don't match

    the amount of line between the circle should match, though

    triangle pieces
    Name:  Attachment-36623.jpe
Views: 38
Size:  27.7 KB

  3. #28
    Super Member LindaR's Avatar
    Join Date
    Dec 2008
    Location
    Michigan
    Posts
    2,943
    Blog Entries
    1
    I have a handy ruler for these 60 things...sure help alot with the quilt I did.....LOL

  4. #29
    Power Poster
    Join Date
    May 2008
    Location
    MN
    Posts
    21,326
    When I first saw this unit, I also thought it was an equilateral triangle flanked by 30-60-90 degree triangles.

    It isn't.

    The angles are - approximately - on the skinny triangle: 26.57, 63.43 and 90 degrees

    The angles on the bigger triangle are - approximately: the base angles are 63.44, 63.44, and the top angle is 53.12 degrees

    The easiest way to draft this is by drawing a square, then putting in the triangle lines and adding seam allowances to the triangles.











  5. #30
    Power Poster
    Join Date
    May 2008
    Location
    MN
    Posts
    21,326
    At one time this was available - don't know if it is anymore or not -
    BiRangle Ruler by Mary Hickey.

  6. #31
    Power Poster
    Join Date
    May 2008
    Location
    MN
    Posts
    21,326
    maybe this drawing will help -

    The Peaky and Spike triangles will make a square unit when sewn together. The height and base lengths finish the same.

    The 30-60-90 triangles with a 60-60-60 triangle make a rectangle when sewn together. The height to base ratio is exactly square root of 3 to 2 - in numbers that is approximately 1.75 to 2



    30-60-90 degree triangle is in red
    Attached Images Attached Images

  7. #32
    Super Member Boston1954's Avatar
    Join Date
    Jul 2008
    Location
    East Oklahoma - pining for Massachusetts
    Posts
    9,857
    Listen to Bearisgray. I had asked for instructions on a block recently and she wrote them out and even sent me a sample block in the mail. What a wonderful person.

Page 2 of 2 FirstFirst 1 2

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

SEO by vBSEO ©2011, Crawlability, Inc.