Answer to essential questions from Unit 2.3

1. The six degrees of freedom that an object has in space are rotation in the x, y, z and translation in the x, y and z.

2. Assembly constraints are very different from geometric and numerical constraints. They are all relevant in the fact that they all are dealing with the constraints placed upon an object. Once past that though they really are not all that similar. Assembly constrains is something that specifies the place or position were two objects meet and the relationship between them. Geometric constraints differ in that they have to deal with constraints of parallel and perpendicular lines. Numeric constraints deal with distance and size of an object; a few examples are length, width, and depth. Geometric constraints ate constant and numeric constraints are number values.

3. An assembly is the putting together of complex machinery, as airplanes, from interchangeable parts of standard dimensions, whereas, a subassembly is a structural assembly, as of electronic or machine parts, forming part of a larger assembly.

4. An engineer might need to create auxiliary view of an object because an auxiliary view is used to show a surface that is not parallel to any of the principal view planes.

5. An engineer might need to create a section view of an object in order to see what dimensions are on that section of an object or to see it in greater detail.

6. table located in the bottom right-hand corner of an engineering drawing that identifies, in an organized way, all of the necessary information that is not given on the drawing itself, also referred to as a title strip.

7. Designer Name, Scale, Name of part or product, client name, date, etc.

8. An assembly drawing is a drawing that shows the various parts of an item when assembled.

9. The purpose of balloons and a parts list in an assembly drawing are to identify parts of the assembly and to give more detail.

10. Item, Quantity, Part Number, and Description of the part.

6/28/11


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