Swing blade sawmill technology was introduced in in New Zealand by inventor Carl Peterson. There are now several swing blade mill manufacturers all over the world. The technology of these mills is gaining in popularity and the industry is growing. Swing Blade technology works similar to band sawmills in that a movable head travels along a track to cut a stationary log.
A circular saw is a power- saw using a toothed or abrasive disc or blade to cut different materials using a rotary motion spinning around an arbor. A hole saw and ring saw also use a rotary motion but are different from a circular saw. Circular saws may also be loosely used for the blade itself. Circular saws were invented in the late 18th century and were in common use in sawmills in the United States by the middle of the 19th century. A circular saw is a tool for cutting many materials such as wood , masonry , plastic , or metal and may be hand-held or mounted to a machine.
A saw is a tool consisting of a tough blade , wire , or chain with a hard toothed edge. It is used to cut through material , very often wood though sometimes metal or stone. The cut is made by placing the toothed edge against the material and moving it forcefully forth and less forcefully back or continuously forward. This force may be applied by hand , or powered by steam , water , electricity or other power source.