For more than three decades, artisan Ron McPherson has produced limited-edition graphics and nationally recognized works of art ranging from hand lithographs in the National Gallery of Art to prints for famous artists such as Roy Lichtenstein. After starting his own company in 1974, McPherson's print work gradually evolved into sculpture work. To create sculptures, which ranged from a 10-ft metal chair for Yoko Ono to public artwork, McPherson relied on a plasma cutter. However, the plasma cutting process left a damaged thermal edge that required secondary finishing such as edge grinding or polishing to remove.
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