Thanks Thanks:  0
Likes Likes:  0
Needs Pictures Needs Pictures:  0
Picture(s) thanks Picture(s) thanks:  0
Results 1 to 7 of 7
  1. #1
    Join Date
    Apr 2004
    Location
    London, Ohio
    Age
    89
    Posts
    557

    Default WOODWORKING QUIZ for 11 AUG 04

    Good Evening friends,
    OK, you wood turners here is one for you.
    You have a block of wood that is 8" square and 4" thick.

    How do you figure the dimensions or proportion a bowl with the golden mean?

    Respectfully,
    Ralph Jones Woodworking
    London, Ohio

  2. # ADS
    Google Adsense Advertisement
    Join Date
    Always
    Location
    Advertising world
    Age
    2010
    Posts
    Many





     
  3. #2
    Join Date
    Nov 2003
    Location
    Australia and France
    Posts
    8,175

    Default

    Interesting question, but why is it called the golden mean?

    Makes it sound all very nasty. No wonder so few people understand it.

    Perhaps from here on on this board we could refer to that wonderous proportion 1:1·6180339887 as the Golden Nice Thing??



    Cheers,

    P

  4. #3
    Join Date
    Sep 2002
    Location
    Minbun, FNQ, Australia
    Age
    66
    Posts
    12,881

    Default

    G'day.

    I'd attack it with my bowl saver & make 3 bowls & a picture/mirror frame.
    The bowls would be 2" high by 3 & 1/4" wide, 3" high by 4 & 3/4" wide, &
    4" high by 6 & 1/2" wide. The frame would be 8" wide.
    Hows that, close enough?
    Cliff.
    If you find a post of mine that is missing a pic that you'd like to see, let me know & I'll see if I can find a copy.

  5. #4
    Join Date
    Apr 2003
    Location
    Tolmie - Victoria
    Age
    68
    Posts
    4,010

    Default

    Good morning Ralph,

    How about a bowl 6 15/32" X 4" ?

    Haven't got a lathe so I might be wrong :confused:


    - Wood Borer

  6. #5
    Join Date
    Apr 2003
    Location
    Tolmie - Victoria
    Age
    68
    Posts
    4,010

    Default Set your plane finer

    Quote Originally Posted by bitingmidge
    1:1·6180339887
    I find that a bit innacurate Bitingmidge and I prefer to use 1.61803398874989484820458683436564 but you need a good sharp plane to achieve it.

    - Wood Borer

  7. #6
    Join Date
    Apr 2004
    Location
    London, Ohio
    Age
    89
    Posts
    557

    Default WOODWORKING QUIZ ANSWER for 11 AUG 04

    Good Evening Friends,
    To answer bitingmidge's question of what is the golden mean.
    To get an eye appealing bowl shape requires a sense of proportion. An ancient Greek formula called the golden mean frequently guides the turner.
    It's really about using the ration 1:1.618 to find the length of the long side in relation to the short side of a rectangle.

    To proportion a bowl with the golden mean using a block of wood 8" square by 4" thick, You would multiply the 4" by 1.618 to arrive to a diameter of 6 1/2" for the rim and then divide the 4" by 1.618 to arrive to a diameter of 2 1/2" for the bottom.

    Thank you for your support.

    Respectfully,
    Ralph Jones Woodworking
    London, Ohio

  8. #7
    Join Date
    Feb 2004
    Location
    Oxley, Brisbane
    Age
    79
    Posts
    3,041

    Default

    Ralph

    Read bitings answer again. He wasn't asking a question (except in a sort of twisted rhetorical way) he was giving you an answer.

    PS what happens if I decide to turn the 8" down to 2" first (because I want a smaller bowl) and just waste the timber?
    Bob Willson
    The term 'grammar nazi' was invented to make people, who don't know their grammar, feel OK about being uneducated.

Tags for this Thread

Posting Permissions

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