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Why is it important to used fixed common reference point for dimensioning of drawings and sketches?
to avoid cumulative error developing when making the component
What is the most common reference point?
The north star is the most common reference point.
Fixed reference point?
A frame of reference in physics, may refer to a coordinate system or set of axes
What must be true about an object that serves as a reference point?
motion
Can moving objects be a reference point?
No because enable to see if the object is moving it needs a reference point other than itself.
Why is it important to used fixed common reference point for dimensioning of drawings and sketches?
to avoid cumulative error developing when making the component
Why is it important to use a fixed common reference point for dimensioning of drawings and sketches?
It is important to use a fixed common reference point on your work peace or drawing to avoid cumulative error, i.e. if a hole is drilled using an incorrect measurement initially, then continuation to measure from the error instead of using a common reference point could result in a whole piece of work being scrapped. Also if somebody has to take over the work, they would need to understand were the dimensions were taken from to enable them to carry on with the work.
Why is it important to use a fixed common reference for dimensioning of drawings and sketches?
It is important to use a fixed common reference point on your work peace or drawing to avoid cumulative error, i.e. if a hole is drilled using an incorrect measurement initially, then continuation to measure from the error instead of using a common reference point could result in a whole piece of work being scrapped. Also if somebody has to take over the work, they would need to understand were the dimensions were taken from to enable them to carry on with the work.
What is the difference between datum dimensioning and chain dimensioning?
Datum dimensioning is where a single reference point is used for all dimensions in a single direction. E.g. If Point A is declared the reference point, then Points B, C, D, etc, will all be measured relative to Point A, not to each other. Chain dimensioning is where each point is measured to the next. E.g. Point B is measured from Point A, Point C is measured from Point B, Point C is measured from Point B, and so on. The problem with chain dimensioning is that each measurement relies on the accuracy of the previous measurement. If there is a tolerance associated with each measurement (+/- X), then the tolerance for each subsequent dimension accumulates and becomes the number of measurements times the tolerance of each measurement (+/- n*X). Since datum dimensioning uses only one reference point, the tolerances cannot accumulate as each measurement is isolated, rather than relying on the accuracy of the previous measurement. Common practice is to only use datum dimensioning in design drawings to ensure greater accuracy over the entire design without requiring tighter tolerances.
What is the fix reference point in photos?
What is the fixed reference point in the photos?
How important the point reference?
Without a fixed Point of Reference, there is nothing to be relative to.
What is a fixed reference point?
A set point where all measurements can be taken from
What is the most common reference point?
The north star is the most common reference point.
What is a fixed place on the earths surface?
reference point
Why do we always start at the origin point?
It is because many things are measured with reference to a fixed point: it space or time. This point is called a reference point or origin.
What is the most common reference point for detecting motion?
Earth's surface is a common reference point for detecting motion.
Fixed reference point?
A frame of reference in physics, may refer to a coordinate system or set of axes
