![]() ![]() ![]() Ī set square is used in technical drawing, providing a straightedge at a right angle or another particular planar angle to a baseline. ![]() They are designed to be rigid enough to be clamped in place. Positioning square, or clamping square, or assembly squareĪn L-shaped square used in woodworking for checking an inside or outside angle when assembling workpieces, such as boxes. : 472, 476 Despite being named a square, most mitre squares are not used for marking or checking a 90° edge.Ī multifunction tool originally manufactured by Stanley that incorporates both a try square and a mitre square.Ī square incorporating a plumb bob to check if something is level, and for making horizontal markings. Factory made mitre squares usually have a metal tongue and a wooden stock, though historically woodworkers would often make their own out of wood. The most common type (pictured) has a tongue set at 45° to the stock. Ī mitre square is used in woodworking to mark and measure 45° angles and it's supplementary angle, 135°. Ī mitre bevel is an historic mitre square of a similar design to the Melencolia try square. Has seen renewed interest in recent years by some woodworkers. The shorter edge usually being the stock, and the longer edge the blade.Īn historic style of woodworking square, in which the width of the blade matches the length of the stock. L-square is a generic term used for L-shaped squares, including framing squares, engineer's squares, and try squares. It can also be used for measuring lengths and for calculating angles. Originally designed for timber framing, a framing square is made from a single flat piece of metal or polymer to a standardised design with a long, wide blade and at 90° to that a shorter, narrower tongue. įraming square, or steel square, or carpenter's square, or roofing square ![]() Īn historic 'A' shaped woodworking square, which can also be combined with a plumb bob for marking out angles. It consists of a steel blade inserted and either welded or pinned into a heavier and thicker steel stock at a 90° angle. Īn engineer's square is the metalworkers' equivalent of a try square. By placing it upright on a known flat surface, such as a surface plate it can be used for checking the accuracy of other items, such as engineer's squares. : 124–127 Ī cylinder square is a heavy solid steel cylinder used in metalworking that has been machined to a high degree of accuracy, with the ends perpendicular to the axis of the cylinder. They can also be purchased with centre finder heads and protractor heads and often incorporate a spirit level. Originally designed for machinists, the tool is also commonly used in woodworking. The head usually has one face at 90° to the ruler, and another face at 45° to the ruler. Ī combination square features a ruler (the blade) which can be slid and adjusted within a head (the stock). : 477 Centre squares are also manufactured to be used as a head for a combination square. Another type is made from a single piece of metal with two perpendicular pins which are placed against the edge of the workpiece. The most common form consists of an 'L' shaped stock with the blade fixed on top bisecting the stock. There are a number of different types of square used for a variety of different industries and purposes:Ĭentre square, or centre finder, or radial squareĭesigned for marking the centre of round materials, such as dowels in woodworking. : 472 Some woodworkers continue to make their own squares. From the 18th century squares began to be manufactured in factories, prior to that they were typically made from wood and were often made by the tradesmen themselves. Wooden try squares have survived from Ancient Egypt and Ancient Rome and can be seen in art from the time. Ancient Egyptian wooden try square from the 20th century BC. ![]()
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