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Both apparatus types have an adjustable drawing-head with rules attached to a protractor scale so that the angle of the rules may be adjusted. [6]: 35–36 A drafting machine allows easy drawing of parallel lines over the paper. The adjustable angle between the rulers allows the lines to be drawn in varying accurate angles.
They are commonly made from clear plastic. The most common set squares are 45° squares, (one 90° corner and two 45° corners) and 60/30 triangles (a 90°, a 60° and a 30° corner). Another type of set square is an adjustable square, which features an edge that can be adjusted to any angle from 0° to 90°. [19] [20]
A drafting machine is a tool used in technical drawing, consisting of a pair of scales mounted to form a right angle on an articulated protractor head that allows an angular rotation. [ 1 ] [ 2 ] The protractor head (two scales and protractor mechanism) is able to move freely across the surface of the drawing board , sliding on two guides ...
The list of materials (L/M, LM, LoM), bill of materials (B/M, BM, BoM), or parts list (P/L, PL) is a (usually tabular) list of the materials used to make a part, and/or the parts used to make an assembly. It may contain instructions for heat treatment, finishing, and other processes, for each part number.
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A Texas grandmother is accused of having an unnecessary gastric feeding tube placed into her granddaughter. Lisa Campbell-Goins is charged with unlawful restraint, exploitation of a child and ...
With its vibrant orange and black theme, this spooky set from 1960 includes a 4-4-0 locomotive, haunted gondola complete with livestock, and pumpkin-themed accessories.
parts list: A list, usually tabular and often on the drawing (if not accompanying the drawing on a separate sheet), listing the parts needed in an assembly, including subparts, standard parts, and hardware. There is no consistently enforced distinction between an L/M, a BoM, or a P/L. PLM: product lifecycle management; plant lifecycle management