Reply by Lee Barker

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Posted on A 25 ft trammel in the parking lot

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Lee Barker

2170 posts in 2875 days

#1 posted 04-10-2013 03:54 AM

There’s a way to do this that does not require the radius of the circle. All you need to know is the length of the chord and the altitude of the arc at the center of the chord. If you’re dead set on the trammel, I’ll not bother to describe it.

It has been written of in Fine Woodworking twice in my reading of the magazine.



-- " his brain, which is as dry as the remainder biscuit after a voyage, he hath strange places cramm'd with observation, the which he vents in mangled forms." --Shakespeare, "As You Like It"

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