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X Marks the Spot
To be precise, the "pointy sticks" X-1 through X-8 marks the spot. All these layout marking tools do the job, but all in a somewhat different way to…
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The Ellipse Stick Trick
Here's a really quick way to layout a good-enough ellipse using just a batten: Ellipse from a Batten from Jim Tolpin on Vimeo.
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Thales Theorem Proof
Thales of Miletus In one of the recent posts we showed you how to get a right angle out of a circle, thanks to this guy. A…