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A reference dimension is a dimension that is not crucial for the effective use of the part. Reference dimensions are not inspected.

A reference dimension may also be a dimension that is shown elsewhere in the drawing but is shown in the current view to help clarify the position of other features in the view. This practice eliminates "double-dimensioning" which is not acceptable in drafting standards.

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Whats the purpose of a component range drawing?

A component range drawing provides detailed information about the components, materials, dimensions, and tolerances required for a specific project or product. It serves as a visual reference for manufacturers to ensure that the components are produced accurately and according to specifications.


Why is the placment of your dimension important?

The placement of dimensions in a drawing is important because it helps to clearly and accurately communicate the size and location of features. Placing dimensions in a consistent and organized manner makes it easier for others to interpret the drawing and manufacture the part correctly. Improperly placed dimensions can lead to misinterpretation and errors in production.


What is the scale and why scale must be considered when the draughtman drawing the plan?

Scale is how much smaller(or bigger) the drawing is compared to the real object. It'd be real awkward if you were drawing a house to have to make the drawing as big as the house would be. But for the drawing to work out you need to know how to translate between the drawing and reality - so you decide something. Scale 1:12 for instance would mean that something that's one inch in the drawing would be one foot in reality.


Say in detail about theory of simultainity?

The theory of simultaneity, proposed by Albert Einstein's special theory of relativity, suggests that the concept of two events happening simultaneously is relative and dependent on the observer's frame of reference. In other words, what one observer perceives as happening simultaneously may not be perceived the same way by another observer in a different frame of reference. This challenges the classical notion of absolute simultaneity and adds a new dimension to our understanding of time and space.


What is difference between tools and materials in drawing?

Tools refer to the physical instruments used to create a drawing, such as pencils, erasers, and rulers. Materials, on the other hand, refer to any substances or surfaces that are used in the drawing process, such as paper, canvas, or pastels. While tools are what you use to create the artwork, materials are what you use the tools on.

Related Questions

Can a reference dimension on an Engineering drawing be toleranced?

No, then it would not be a reference dimension. Reference dimensions by definition have no tolerance.


How is a material in stock dimension shown on a drawing?

.125 STOCK


What does for reference only mean on an engineering drawing?

It means you can't look at it or you'll go catatonic Cute. Actually, it means that the entity that is being "referenced", usually a dimension, should NOT be inspected. It might be an overall length of the part. This might be a "cut length" for the machinist where the actual required dimension is shown elsewhere on the drawing.


On a manufacturing drawing what does it mean to hold dimension?

Every dimension has a shown or implied tolerance, the dimensions shown as HOLD are the dimensions that are not to be affected by the stack up of tolerances of the holes or features around them.


The first dimension string on an architectural drawing should begin were?

The first dimension string on an architectural drawing should begin at the point representing the starting reference point of the dimension being measured. This point is typically indicated by a small arrow or dot.


What does a dimension in brackets on a drawing?

This is a reference dimension. I.e. the part can and should be manufactured without using it directly. The non-bracketed dimensions should define the form of the part completely.


What is the difference between shown in drawing and shown on drawing?

Shown in drawing and shown on drawing can mean the same thing. These statements would both indicate that the concept is shown somewhere within the drawing.


What is the definition for datum dimension?

A dimension that exactly locates a reference point, reference line, or reference plane


What do parentheses around a dimension represent?

Generally it means that the dimension is for reference only. The actual (real dimension) will show up somewhere else on a drawing. It could also be put on a dimension that you really don't want an inspector to hold tight (material thicknesses that vary with vendor or batch run)


What does an underlined dimension mean on a drawing?

An underline on a dimension means that it is not to scale.


Dimension not to scale representation in engineering drawing?

NTS


What does a small n next to a dimension signify The part is aluminum to be hard anodized?

The "n" next to a dimension on a drawing typically indicates that it is a nominal dimension, which means it is the target or reference dimension without any tolerance applied. In the context of a part being aluminum and to be hard anodized, the nominal dimension may be specified to ensure that the part can accommodate the additional thickness created by the hard anodizing process.