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Why 30 degree angle is used in isometric?
isometric drawing create the illusion of 3 dimension by drawing the depth of the object on the both side.. in isometric drawing they are both set on the 30 degree angle..
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 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)
Find dimension for a barn height 32 ft and you need a lenght for a scale of 116?
If the scale is 1 to 16, then each dimension in the real world is 16 times its size on the drawing, and its size on the drawing is 1/16 of its real size. The barn must be drawn 2-ft high on the plans.
What is a Dimension line used in drafting?
there are several different types of lines used in dimensional drawing, most are vertical and horizontal in design.
If you are drawing a drawing for school and asked to give it a title would it be in quotes or underlined?
Underlined
What does scale in draffting mean?
Scale provides the ability to measure a depicted feature or arrangement of features on the drawing, and scale it to what it was / will be in the real world. It is not always possible to dimension every possible feature, and a scaled drawing allows someone to infer what a given dimension will be.
What does ref mean on a drawing?
Ref usually means that this dimension (and any associated tolerancing), is specified somewhere else, possibly on a lower level sub-assembly 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.
Dimension not to scale representation in engineering drawing?
NTS
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.
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.
What is 3D drawing?
A 3D drawing is a three dimensional drawing. There are a number of ways an artist can convey dimension in a drawing. Perspective is one of them. Shading and contouring are others.
How is a material in stock dimension shown on a drawing?
.125 STOCK
What are the two system of placing dimension on drawing?
relative and polar
What does period of the underlined digits mean?
Oh, dude, the period of the underlined digits is just the number of digits in a repeating decimal pattern. It's like when your friend keeps telling the same joke over and over again. So, if you see 0.333... the period of the underlined digits is 1 because it just keeps repeating that "3" forever. It's like a never-ending story, but with numbers.
What is orthoghrapic drawing?
An orthographic drawing attempts to represent a 3D picture in a two dimension drawing. Usually shows a front, side and plain view
