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a filet should be dimensioned as - radius An engineering drawing should specify the preferred method of manufacturing of the part - no ASME Y14.5 dimensioning rules - - every feature shall be explicitly and fully dimensioned leaving nothing to assumption - each necessary shall be shown; no redundant dimensions allowed - each dimension should have a tolerance (exception: stock) best practice is to dimension cylindrical features in the view where they show as - rectangles best practice to dimension hole features in the view where they show the drawing as - circle best to dimension from - left wall Chain Dimension - Dimensions are established from one point to the next. Also known as point-to-point dimensioning. Tolerance accumulates dimensions holes where - circles are visible. Opposite rule for cylinders. Dimension cylinders in their profile view. (helps distinguish from holes). To prevent misreading hole as cylinder. dimensions in an engineering drawing are specified to be when the part is - at room temp and pressure. exceptions of rule: all dimensions are applicable in a free state condition (unstressed0 - - non-rigid parts- parts that must be restrained for inspection (drawing must specify how) holes - - dimension as circles - hole call out (click on annotations) horizontal dimension - relative to right edge if a feature is very important, it is good to show its dimensions In multiple views. - no in engineering drawing, every dimension requires tolerancing - yes instead of specifying the manufacturing method - specify the the desired final dimensions and final geometry instead its ok to dimension hidden lines - no bad partial arcs - use radius instead of diameter. use diameter for 360 stock material - should follow by its gage or code the nomenclature "typ" or "typical of" indicates - the feature is repeated in the drawing a certain number of times to design is to manage uncertainty by - Dimensioning the right items from the right places with right tolerance. true design - - requires that we establish the least restrictive dimensions on said parts that will allow the device to perform as intended