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Fibonacci Gauge & Coping Sled

Project by CaptainSkully posted 92 days ago 1301 views 9 times favorited 10 comments Add to Favorites Watch

After browsing LJ’s archives and watching TheWoodWhisperer’s “Gadget Station” series, I decided to build a couple of things for the shop. As a Mechanical Engineer, I’m fascinated by Fibonacci and am in the process of designing our dining room table according to the Golden Mean. Did I mention that the gauge is deadly accurate?

Marc did a bunch of tenons using a coping sled, so I picked some up some toggle clamps today at Rockler and set it up to work on both ends of my table saw/router table.

I may not be ready for the Aurora table, but I’m getting darn close…

-- You can't control the wind, but you can trim your sails


10 comments so far

View John Gray's profile

John Gray

1753 posts in 780 days


posted 92 days ago

Very nice!!!! Thanks for the post I saved the pix for later reference.

-- Only the Shadow knows....................

View a1Jim's profile (online now)

a1Jim

16801 posts in 472 days


posted 92 days ago

sounds good

-- Jim from Heirloom Woodshop Southern Oregon

View degoose's profile

degoose

1999 posts in 249 days


posted 91 days ago

HUH?

-- Drink once, cut twice. New website up.... lazylarrywoodworks.com.au

View degoose's profile

degoose

1999 posts in 249 days


posted 91 days ago

OK now I understand.. I already knew about the golden mean but got lost with the reference to Fibonacci
For those like me check out The man himself

-- Drink once, cut twice. New website up.... lazylarrywoodworks.com.au

View CaptainSkully's profile (online now)

CaptainSkully

481 posts in 453 days


posted 91 days ago

Sorry, I should’ve included the links.

-- You can't control the wind, but you can trim your sails

View TheDane's profile

TheDane

202 posts in 558 days


posted 91 days ago

These look terrific!

I’d like to make a Fibonacci gauge, but nobody around here stocks binder posts and I’ll be hanged if I am going to buy a box of 100 to get 4. What hardware did you use?

-- The only place success comes before work is in the dictionary. -- Vincent T. Lombardi

View David65's profile

David65

160 posts in 180 days


posted 91 days ago

Yes I was stumped also but once the dear in the head lights wore off it all clicked. Can you pots the measurements of each peace? I would like to make my own…

-- David '65

View CaptainSkully's profile (online now)

CaptainSkully

481 posts in 453 days


posted 90 days ago

I too had trouble with the hardware. I bought something at Rockler, but it wasn’t right. I just hid the problem in the photo. I’m thinking about something like the mating screws that they use to attach knife handle scales to the blade. You can get them in small quantities and they’ll handle the thickness (or lack thereof) properly.

Here’s the diagram I used. As an engineer, I have no problem with metric units, and I think they’re more accurate in this application. These ended up over a foot long. The nice thing is that you can scale this to any proportions you want by multiplying or dividing the dimensions.

As I mentioned before, they’re deadly accurate. When I placed two dividers on 0 and 100mm, the third pointer was invisibly close to 161.8. You can also buy plans online for about $3.

Make sure you make the parts oversized of the measurements. The measurements are for the pivot points and tips of the pointers.

Fibonacci Gauge Diagram

-- You can't control the wind, but you can trim your sails

View David65's profile

David65

160 posts in 180 days


posted 90 days ago

Sweet Thank you that makes since now. I went online and did some research saw the outcome to be the same but didn’t know the measurements.

-- David '65

View Innovator's profile

Innovator

3125 posts in 308 days


posted 90 days ago

Came out great. I have plans for it, I just need to get it done.

-- Whether You Think You Can or You Think You Can't, YOU ARE RIGHT!!!

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