Scale Used In Engineering Drawing

In this case all the scales used on the drawing should be indicated.

Scale used in engineering drawing.

When the drawing ages the engineer s scale shrinks and may not give accurate results. More than one scale may be used on a drawing. Then consider the reduction scale ratios in required format 1 2 1 5 etc. An engineering scale also known as an engineer s scale is actually a type of ruler that produces ratio drawings.

Typically in civil engineering applications 1 10 1 10 is used exclusively for detail drawings. Find an even whole number dimension on the drawing and check it with the scale. We use the enlarged scales for very small objects. Where the denominator is the number after the colon.

1 20 1 50 or 1 100 si units or. 1 20 and 1 40 scales are used for working plans. The engineer s scale came into existence when machining parts required a greater precision than the usual binary fractionalization. Graphical scales are used in survey maps.

For example with an engineering scale it is possible to manually create a drawing that is ten times larger or ten times smaller than the original that the engineer is drawing from. You can use this technique to check if you have the scale set correctly for your printed drawings. Check the drawing scale in the example at the left the scale is 1 1 0 use a engineering scale. To scale a si drawing.

The graphical scale is drawn on the drawing. 1 60 is normally used only to show large areas of a project. Example blueprint drawing scale 1 50. But the change is while representing the drawing on a sheet.

Increasing the drawing scale even more to 1 5 it becomes quite obvious how much extra area are displayed but again the cost is details that can be seen. A common use is to specify the geometry necessary for the construction of a component and is called a detail drawing usually a number of drawings are necessary to completely specify even a simple component. No changes in dimensions. The number 1 means 1 graduation of 1 inch represents 1 foot.

1 4 or 1 8 imperial units us scales. Multiply the measurement on the drawing with the denominator. Engineers typically use this scale for drafting and blueprint creation. Hence graphical scale is used as the drawing shrinks the scale will also shrink.

This is the same drawing of the v block but at a scale of 1 2. These is used to locate a huge drawing in a particular sheet.