using the golden mean

[hughie]

Here you go, a link to a simple device thats easy to make. That can be used to determine the proportions of your wood turning, via the Golden Mean or Fibonnacci numbers, Phi etc.

Bear in mind that the dimensions are between pivot points and not the over all lengths.


compass/divider device
http://goldennumber.net/images/goldensectiongauge.gif

and for a ruler, rather than compass/divider device and further info on usage
http://goldennumber.net/goldgrid.htm

http://goldennumber.net/images/goldenrulercard.gif

[killerbeast]

Great looking. but how do i read the ruler ?? looked at it but havent got a clue

[Gil Jones]

Like Hughie's "golden section gauge".

[Skew ChiDAMN!!]

Just an ordinary, everyday compass can do the trick...

http://www.woodworkforums.ubeaut.com.au/showpost.php?p=365319&postcount=41

:U

[joe greiner]

And here's more: http://www.woodworkforums.ubeaut.com.au/showthread.php?t=45048&highlight=fibonacci

See post #12 for derekcohen's with rivets, and #20 for mine with stationery binding posts.

Joe

[oldiephred]

Indulge an old retired engineer please. Where in hobby woodworking would one find a need for this type of "tool"? I understand the theory and importance of fibby's theorm but ??? Thanks.

[rsser]

The GM is a principle used to set proportions for design.