Activity 3.4 Linear Dimensions
Introduction
If you were given the responsibility of going to a store and purchasing a throw rugthat had to fit within a room in your home, how would you communicate the shapeand size of the room to the salesperson?Given the sketching skills that you’ve developed, you would probably sketch a topview of the room on a piece of paper. This would be useful, but a sketch alone onlycommunicates shape information.A shape has a size that must be communicated in order to make intelligent designdecisions. Information about an object’s size must be conveyed using dimensions. In
manufacturing, a part must be dimensioned fully and correctly and to the properprecision. Otherwise, the part may not function properly or may not fit into anassembly as intended. Dimensioning errors can lead to a delay in production time,increased design and manufacturing costs, and a potentially unsafe product.In this activity, you will apply your knowledge of dimensioning to identifydimensioning errors and provide missing dimensions on multi-view drawings. Youwill also fully dimension multi-view sketches according to dimensioning guidelines.
If you were given the responsibility of going to a store and purchasing a throw rugthat had to fit within a room in your home, how would you communicate the shapeand size of the room to the salesperson?Given the sketching skills that you’ve developed, you would probably sketch a topview of the room on a piece of paper. This would be useful, but a sketch alone onlycommunicates shape information.A shape has a size that must be communicated in order to make intelligent designdecisions. Information about an object’s size must be conveyed using dimensions. In
manufacturing, a part must be dimensioned fully and correctly and to the properprecision. Otherwise, the part may not function properly or may not fit into anassembly as intended. Dimensioning errors can lead to a delay in production time,increased design and manufacturing costs, and a potentially unsafe product.In this activity, you will apply your knowledge of dimensioning to identifydimensioning errors and provide missing dimensions on multi-view drawings. Youwill also fully dimension multi-view sketches according to dimensioning guidelines.
Conclusion
1. Why is placement of your dimensions so important?
Because it helps the engineering know what dimension it is
2. Why do designers need to fully dimension a part?
So they'll know where and how long is the dimension
3. What does it mean when a sketch is over dimensioned?
It means that the sketch is bad and not clear at all for the engineer to understand