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druxey

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Posts posted by druxey

  1. I've used a mechanical pencil for many years for drafting and for marking out. One can keep an extremely fine point on them, and hence a very thin line. This minimizes error, particularly when fitting joints. I generally use 4H leads. The pencils are still available at places like Michael's (U.S. and Canada) and one can still find boxes of harder grade leads on eBay. 

  2. Sometimes the stem curve is made of two different radii, which complicates things! If you are lucky, you can see the prick-mark left by the draftsman's compass when he drew the arcs for the stem and rabbet. Take a line vertically up from the point where the straight part of the rabbet begins to curve and look carefully. 

     

    The other method is to make an arc of the specified radius (13' 7 1/2" in your example) and put the center at different points along the curve and strike several arcs. The intersection of those arcs will locate the center of the curve.

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