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.
If the working drawings are what is used to manufacture the object then there should be no difference. There will be more detail given in the working drawing but they would be engineering tolerances.
You take a ruler or tape measure and measure the dimensions you need.
You need to measure the dimensions.
If you multiply two measurements, you get only two dimensions - an area. For a volume, you need three dimensions.
The dimensions have to be within the tolerances of a specified datum.
because to fine out up and down valu.
Symbols used in a Geometric Dimensioning and tolerancing system to specify certain types of dimensions and tolerances.
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.
If the working drawings are what is used to manufacture the object then there should be no difference. There will be more detail given in the working drawing but they would be engineering tolerances.
The dimensions, tolerances and so forth is either over a horizontal line, or to the left of a vertical.
when reading a blueprint, a general tolerance would apply for all dimensions that are not individually identified. eg, all tolerances are +\- .030" General tolerances are normally found in the information blocks of the blueprint. If for example a tighter tolerance is required, then a specific tolerance is noted for certain areas of the blueprint. These tolerances are normally found beside the affected area.
when reading a blueprint, a general tolerance would apply for all dimensions that are not individually identified. eg, all tolerances are +\- .030" General tolerances are normally found in the information blocks of the blueprint. If for example a tighter tolerance is required, then a specific tolerance is noted for certain areas of the blueprint. These tolerances are normally found beside the affected area.
Baseline dimensioning is a method of dimensioning in technical drawings where all dimensions are referenced from a single baseline, reducing the chance of errors due to accumulation of tolerances. It helps to maintain clarity and consistency in the layout of dimensions on a drawing.
A manufacturing tolerance chart can be defined as a graphical representation of a sequence of metal removal operations. Such a chart provides the raw material dimensions, the rough cut, semi finish and finish machining dimensions for each machining operation along with the machining tolerances, stock removal amounts for each cut and the resultant finish dimensions and tolerances. These charts were used for many years to help produce cost effective processes that provided the most liberal machining tolerances while meeting the B/P requirements. In recent years, because of increased machining accuracy, the tolerance chart is frequently ignored and processes are developed more by trial, error and experience.
You take a ruler or tape measure and measure the dimensions you need.
You need to measure the dimensions.