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Golden rule calculator, Fibonacci

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Blog entry by geppetto posted 07-24-2021 04:38 PM 676 reads 1 time favorited 10 comments Add to Favorites Watch

I quite often use the golden rule for making projects and have found these formulas useful . When I want a certain size, and have one dimension (Width, Height or Length) I’m going for, I can plug that number in which will drive the other dimensions needed. Putting this into a spreadsheet makes it a piece of cake!

Known dimension = H, W or L

HEIGHT = H, Width = H x 1.628, Length = H x 1.628×1.628

WIDTH = W, Length = W x 1.628, Height = W / 1.628

LENGTH = L, Height = L/1.628, Width = (L/1.628)/1.628

-- geppettoswoodshop.com



10 comments so far

View pottz's profile

pottz

20049 posts in 2196 days


#1 posted 07-24-2021 08:44 PM

i only use one rule for making projects thats,there are no rules.i design based on what looks good to me,but those formulas are great for most people that cant visualize a finished project,

-- working with my hands is a joy,it gives me a sense of fulfillment,somthing so many seek and so few find.-SAM MALOOF.

View robscastle's profile

robscastle

8220 posts in 3416 days


#2 posted 07-24-2021 11:12 PM

Morning Pottzy

Well believe it or not the concept of,... it doesn’t look right, ... is an visual application of the Fibonacci rule anyway.

To prove it to yourself draw a few boxes on a sheet of paper in the 2D realm or 3D if you want, and the choose the one which looks pleasing to you. Ignoring of course making a box for your Barrett M92
Then measure it, and you will find that it will be very close to the 1: 1.62 ratio !

Amazing stuff eh!

I made a Fibonacci gauge but like you I don’t use it much, .....well sometimes I do just to remind me of what the Fibonacci theory is and how it works!

And I guess people (outsiders) look at us and wonder what the fascination in woodworking is!

-- Regards Rob

View pottz's profile

pottz

20049 posts in 2196 days


#3 posted 07-24-2021 11:55 PM



Morning Pottzy

Well believe it or not the concept of,... it doesn t look right, ... is an visual application of the Fibonacci rule anyway.

To prove it to yourself draw a few boxes on a sheet of paper in the 2D realm or 3D if you want, and the choose the one which looks pleasing to you. Ignoring of course making a box for your Barrett M92
Then measure it, and you will find that it will be very close to the 1: 1.62 ratio !

Amazing stuff eh!

I made a Fibonacci gauge but like you I don t use it much, .....well sometimes I do just to remind me of what the Fibonacci theory is and how it works!

And I guess people (outsiders) look at us and wonder what the fascination in woodworking is!

- robscastle


rc if you saw my process for designing and building youd shake your head and laugh.most projects are a simple sketch with some basic measurements at best.i design and build 90% in my head.the time some guys spend doing sketchup ill have the project half done.thats just my way,i dont recommend for anyone.

-- working with my hands is a joy,it gives me a sense of fulfillment,somthing so many seek and so few find.-SAM MALOOF.

View robscastle's profile

robscastle

8220 posts in 3416 days


#4 posted 07-25-2021 01:20 AM

In most cases the only drawing I do is after the fact so I can remember how I did it if i need to repeat the project if I have given it to the family. I learned my lesson big time making Maloof kids chairs!

-- Regards Rob

View LittleBlackDuck's profile (online now)

LittleBlackDuck

7883 posts in 2033 days


#5 posted 07-25-2021 05:07 AM

Hey rc, pottzy is upset because no one has designed a Fibonachi gauge for bowls.

I made one after inspiration from Dave Polaschek

I’ve visited his home more times than I’ve used my gauge… and he wouldn’t even answer the door to let me in.

-- If your first cut is too short... Take the second cut from the longer end... LBD

View pottz's profile

pottz

20049 posts in 2196 days


#6 posted 07-25-2021 06:46 AM



Hey rc, pottzy is upset because no one has designed a Fibonachi gauge for bowls.

I made one after inspiration from Dave Polaschek

I ve visited his home more times than I ve used my gauge… and he wouldn t even answer the door to let me in.

- LittleBlackDuck


your jealousy is well known ducks.come too grips people love bowls more than puzzles,geeez!

-- working with my hands is a joy,it gives me a sense of fulfillment,somthing so many seek and so few find.-SAM MALOOF.

View LittleBlackDuck's profile (online now)

LittleBlackDuck

7883 posts in 2033 days


#7 posted 07-25-2021 07:04 AM



... your jealousy is well known ducks.come too grips people love bowls more than puzzles,geeez!
- pottz

Correctamundo pottzy... all the commoners have bowls, it’s the elite that own and can solve puzzles… most accept being puzzled by a puzzle but few can accept being puzzled by a bowl… unless you’re a cricketer line Shane Warne!

-- If your first cut is too short... Take the second cut from the longer end... LBD

View robscastle's profile

robscastle

8220 posts in 3416 days


#8 posted 07-25-2021 09:11 AM

hey did you see Warnie on Kath and Kym?... bloody bewdie mate, Magda did her xxxxxxx over him! Bloody funny …almost reminded me of the Benny Hill Show!

-- Regards Rob

View LittleBlackDuck's profile (online now)

LittleBlackDuck

7883 posts in 2033 days


#9 posted 07-25-2021 09:43 AM


hey did you see Warnie on Kath and Kym?... bloody bewdie mate, Magda did her xxxxxxx over him! Bloody funny …almost reminded me of the Benny Hill Show!
- robscastle

No way Jose and that’s with a capital ”J”... cannot stand the three of them… K, K & M... just typing that makes me cringe at a ”&”!
They’re about as funny as an impacted wisdom toot extraction without anesthetic… and I had one extracted that took 2.25 hours… yep… but I had the funny juice so the first 2 hours was ok… it was the last 15 minutes when I became “immune” that it hurt big time!

Benny Hill was crass… in a good way… they are just crass. I wouldn’t watch them even if they were in a XXX... add another X and I’d still boycot (not Geoffrey), however, Warnie by himself, maybe!

-- If your first cut is too short... Take the second cut from the longer end... LBD

View BlueNo2's profile

BlueNo2

10 posts in 2740 days


#10 posted 08-08-2021 04:03 PM

Thanks for postings. Formulas like these, much like cookbook recipes, a great jumping off point for inspiration and individualization.

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