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Common lines made using a speed square include perpendicular cut marks and Angles definition of an angle for roofs, stairways, and decks. The tool uses a 0° reference. This means when a board is squared off the tool reads 0°. The angle derived is actually a complementary angle, for example a 22.5° angle is actually 67.5°. The sum of the ...
The quarter sawing is process for rip cutting logs into lumber. It produces quarter-sawn or quarter-cut boards. The resulting lumber can also be called radially-sawn or simply quartered. Wood cut in this way is prized for certain applications, but it will tend to be more expensive as well.
Diagonal- and stepped-cut rift-sawing is intermediate to flat-sawn and radial cut lumber. The angle of the bastard grain may differ along the width of the board or between opposing sides, and enhances the appearance of ray fleck. Flat-sawing is the quickest method, producing the least wood waste and largest possible boards from a log.
A combination square features a ruler (the blade) which can be slid and adjusted within a head (the stock). The head usually has one face at 90° to the ruler, and another face at 45° to the ruler. Originally designed for machinists, the tool is also commonly used in woodworking.
The research from the ACM FAccT conference has greatly influenced both public rules and how companies operate. Governments and organizations have used ideas from the conference to create guidelines and policies. For example, studies on bias in algorithms have helped change hiring methods at big tech companies, making them fairer.
Marking out or layout means the process of transferring a design or pattern to a workpiece, as the first step in the manufacturing process. [1] It is performed in many industries or hobbies although in the repetition industries the machine's initial setup is designed to remove the need to mark out every individual piece.
A "fat quarter" is one square meter (or one yard by the width of the fabric, typically 42–44") folded into four and cut along the folds, thus giving a relatively square piece of fabric 50 cm on a side, as opposed to buying a quarter of a meter off the roll, resulting in a long thin piece that is only 25 cm wide.
The first step away from slide rules was the introduction of relatively inexpensive electronic desktop scientific calculators. These included the Wang Laboratories LOCI-2, [ 30 ] [ 31 ] introduced in 1965, which used logarithms for multiplication and division; and the Hewlett-Packard HP 9100A , introduced in 1968. [ 32 ]