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Panel saw
A panel saw is any type of sawing machine with a sliding table that cuts sheets into sized parts.〔Anthony, Paul. ''Taunton's complete illustrated guide to tablesaws''. Newtown, CT: Taunton Press, 2009. 5. Print.〕
A sliding panel saw was invented by Wilhelm Altendorf in 1906 in Germany.〔http://www.altendorf.com.au/about.html〕 Its invention set a new standard in woodworking, with dramatic differences from traditional machines. Up to that time, a conventional table saw had no mechanism for edging. Meaning that for the first and second longitudinal cut on untreated massive wood, the lumber always had to be fed manually through the saw blade. The new system accomplished the task more elegantly by allowing the work piece to be fed through the saw blade while lying on a sliding table. Thus cutting becomes faster, accurate and effortless.
Panel saws are used by cabinet shops to easily cut panels, profiles, solid-wood, plywood, MDF, laminates, plastic sheets and melamine sheets into sizes or cabinet components. They are also used by sign shops to cut sheets of aluminum, plastic and wood for their sign blanks. Some higher end panel saws feature computer controls that move the blade and fence systems to preset values. Other lower end machines offer simplicity and ease of use, including full scale hobbyist level panel saws at a mere fraction of the cost. While the entry level machines are designed for light duty usage, they offer home DIYers a cheap alternative for infrequent cutting when accuracy and clean cuts are not required.
Panel saws can have one main saw blade, or a scoring along with a main saw blade. Scoring is used to create a groove, especially in double side laminate before the main saw rips the piece apart, to avoid chipping. The scoring saw rotates in an opposite direction, as the main saw to avoid chipping.
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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