Use this unique method to square a foundation.

There is a guide to geometry at http://www.fine-woodworking-for-your-home.com/Geometry.html

I always set out one edge first then use the scribing the arc method to put in each side. Because you can use something fixed like battens it takes reduces errors. Once you have the base and two side laid out its simple then to measure off and final check of the diagonals.

But of course its what works best for you

 

When scribing an arc, if you use a batten then there is no measuring or play in a line

 

Well, I got to 4.23 before I cut my wrists. Anyone get further?

And - sorry to be a pedant - didn't he get the measurement for marking out the second 5.5" line wrong? I mean, he took his tape from the first datum line and went up towards the where he wanted to put the second line, and the distance was supposedly "twenty foot minus five and a half inches..."

Shouldn't it have been 20' minus 11"? Eleven, because he was starting 5.5" from the bottom line and he wanted to stop 5.5" from the new top one?

And why five point five inches anyways? Why not, oooh, just five? Or six? Or four? Or ten? Or eight?

And why the dull, hesitant monotone?

And why didn't his vertical centre-line pass through where his diagonals crossed near the middle of the square? I mean, surely it should have?

Apart from that it was all good.

At least up to 4.23.

 

I'm going to place a video of me cutting my wrists.

 

Cool, full colour ?

 

Aw maaaan - you are faaaar too patient with me .

Thanks for the reply, Nail.

 

WAIT!!!!

I found another error

On your Youtube video, you courteously replied to a viewer "Your very welcome, and thank you for watching."

It should be "you're" very welcome.

And you are very welcome .


(walks away into the sunset, whistling smuggly... )

 

Corner cross heads is the tried and trusted method. Then parallel the string lines and tape corner to corner. From there the foundation can be pin pointed and marked.
But an even easier way is a laser level with "laydown" facility. Shoots a beam in one direction exactly at 90 degrees to the rotating beam that's picked up with the receiver.
Then finish with the tape corner to corner.

 

[Nailbender "No problemo" [/QUOTE]

My work here is done...

 

I stopped the video at 4:11. Because at that point the right angles are created. Not a bad method I suppose.

The square of the hippotomaus equals the sum of the square of the other two sides. From that the hippo is easily worked out. If you carry a calculator that is.

 

Pythagorean theorem!
Cross heads. Two posts staked into the ground with a lath nailed horizontal across them.
Corner cross heads. Three stakes driven into ground with laths nailed horizontal to form a corner.

 

(Ry is on aboot the 3,4,5 method...)

 

20 posts about marking out a square