What Is A Reference Dimension In An Engineering Drawing

What Is A Reference Dimension In An Engineering Drawing. This is often used when there are similar features, and to avoid unnecessary dimensioning by the draftsperson. Figure 2.1 use of projection and dimensioning arrcwheads are drawn open or solid about g mm long i mm wide projection lines are lines and may cross are thin lines 2mm past dimension ine mm gap rowheads should touch projection lines at extremities the dimension are on the outside of projection for smaller.

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These dimensions are to be used as reference only. Bottom of the drawing sheet. This method is commonly used in mechanical drafting.

Enough Views To Adequate Describe The Component.


A reference dimension is just what it sounds like. These dimensions are to be used as reference only. The standard size of a drawing.

Dimensions Specifying Features Of Size, Position, Location, Geometric Control And Surface Texture Must Be Defined And Appear On.


The dimension may also be surrounded by parentheses to signify a reference dimension. Aligned dimensions are placed so the horizontal dimensions can be read from the bottom of the drawing sheet and the vertical dimensions can be read from the right side of the drawing sheet. The overall dimensions are placed outside the smaller dimensions this dimension is showed by the common reference line.

Correct And Incorrect Usage Of Dimensions.


A reference dimension is a repeat of a dimension or is derived from other values on the drawing or related drawings. Figure 2.1 use of projection and dimensioning arrcwheads are drawn open or solid about g mm long i mm wide projection lines are lines and may cross are thin lines 2mm past dimension ine mm gap rowheads should touch projection lines at extremities the dimension are on the outside of projection for smaller. It also could be a dimension that is described on another drawing or elsewhere.

Last Updated On Sun, 23 Jan 2022 | Engineering Drawing.


It is a dimension shown for reference. This method is commonly used in mechanical drafting. This is often used when there are similar features, and to avoid unnecessary dimensioning by the draftsperson.

Other Design & Engineering Books:


(.250) gd&t reference & training books: Ref on drawings is generally defined as reference. What is meant by nominal size?

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