Radial arm saw
Unlike most types of woodworking machinery, the radial arm saw has a clear genesis: it was invented by Raymond DeWalt of Leola, Pennsylvania.[1] DeWalt and others subsequently patented many variations on the original, but DeWalt's original design (sold under the moniker Wonder Worker)[2] remained the most successful: a circular saw blade directly driven by an electric motor held in a yoke sliding along a horizontal arm that is some distance above a horizontal table surface.The major shortcoming of most current radial arm saws for home-use is that, most radial arm saws that have been built after the early 1960s are manufactured with stamped sheet metal parts and are machined to loose tolerances, hence they are not precise for doing accurate work without 'tuning'.With the (wood) clamped and using the arm (not hand feeding, which is also possible), the cuts are better machined and require no jig setup; the advantage is not widely needed however."Top cutting" machined saw table with differing axis designs are still made and sold.
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