Timber Framing Math

[empip]

I am guessing there is more here than you'll ever need to know on the theory .. or is there?
The next difficult part is ------ physically doing it and getting it right !!
http://ca.geocities.com/xpf51/LOG_AND_TIMBER_FRAMING_ANGLES/

Gets quite complex .....
http://ca.geocities.com/xpf51/

Some pictures here ..
http://ca.geocities.com/xpf51/gallery/PHOTO_GALLERY.html

See this folks stairs, roofing, etc,etc ... Where are these sites hiding??
http://www.blocklayer.com/Default.aspx
Any comments - ??

 

[Nige F]

Thanx for the link..I can just about manage a stud wall Tho` others may find that using a Roofing Square and it`s instruction manual may be useful....If you can get hold of one.

 

[masona]

empip, might be an idea to have a word with admin to put it on for a sticky reference on here?

 

[JohnD]

What's a "kernel?"

 

[empip]

What's a "kernel?"

A tetrahedron (polygon or closed plane figure having 4 faces) each face consisting of a right-angled triangle, is called a 'kernel'..... allegedly ! As was Buffalo Bill !

 

[empip]

empip, might be an idea to have a word with admin to put it on for a sticky reference on here?

I would if I understood it ! I wonder if the Yankee chippy learns all this when training? Pretty impressive.

 

[noseall]

i frequently use triginometry when working out a roof pitch. if you had a 20deg lean-to roof, looking sideways on, you've basically got a right angle triangle, one vertical side, one horizontal, and one slopey (hypotenuse). if you divide the shorter vertical one (say 2200mm) by the longer horizontal one (say 6050mm) this gives 0.3636, then press inv. tan on a scientific calculator, it will give the roof pitch in degrees. easy! also pythagoras comes in useful too when setting out floor tiles etc, or just use the 3,4,5, method, to acheive a perfect right angle.

 

[empip]

 

[Joe Bartok]

Your definition of a "kernel" (not the "Buffalo Bill" one) is correct. It's kind of a neat name I picked up from the Timber Framer's Guild. Much like a kernel is related to the whole cob of corn, the roof kernels describe or model the geometry of the entire roof. Sometimes I just call the "kernels" models or tetrahedrons.

 

[empip]

Joe, is this your stuff by any slim chance? 'Joe Pi' ?
http://ca.geocities.com/xpf51/

I, sadly, was a mechanical Eng. Worked mainly with some sophisticated measuring kit .. where software allowed 'virtual' 3D - lines, planes, points etc, made it relatively easy to find intersections, angles etc.
Quicker than calculator or Cadd, when you know how.

Buffalo Bill .. kernel or was it Colonel Will Cody

Edit
I popped here constructionforumsonline Click LINK
I think you are Joe Pi !! Am I right?

 

[Joe Bartok]

That would be me. My real name is the screen name in forums. It's also in the source code and will appear if you hover your mouse over that avatar in the web pages.
I tried to work some math into that avatar. The "Pi" is from a famous formula: the exponential function raised to the exponent negative imaginary pi. The proportions of the rectangle are close to the Golden Ratio. I originally tried a cool fractal pattern for the background but it made my name unreadable so I switched to blue.
I don't have any drawing/engineering programs; the online calculators, programmable calculators or just a scientific calculator with trig functions will do the trick. And if the computer and calculators break I can use a slide rule ...

 

[empip]

Very impressed with your offerings Joe, well done sir !
I was surprised that the pages were difficult to find .. bookmarked now tho'.

Blimey, I lost my old slide rule, but remember it quite fondly.

My first programmable calculator sits on the desk now .... Commodore P50, 22 programmable steps, it still works and I have the original manual - bought it in late 70's.
Here lies the same

Cheers.

 

[Joe Bartok]

This Casio programmable calculator has been sufficient for my needs for the past ten years. Programmables have come a long way since; increased memory (this model has 4K of RAM), flash cards, color graphic, iconic displays, etc.

 

[empip]

Yes, my final buy has been the 32k power graphic fx-9750G ... around 5 yrs now.
E.

 

[chappers]

mine is more like empip's can you run that baby on a mains adaptor, think mine must be abit more modern it has a green LED.