Model Train
This project was an extensive student-led effort to complete an entire train according to given specifications. Based on dimensioned engineering drawings, IED students recreated an entire train on the Inventor CAD software. We had a few weeks to complete each activity, which not only helped to further develop our Inventor skills but also our efficiency in working under time constraints. There were a total of 10 different parts to be created, and 9 of them (not including the straight track) were assembled to create the completed train. The train was inscribed in engineering drawings both through a real-life view and through an exploded view.
Conclusion:
1. Why are drawings composed of different line conventions?
Drawings are composed of different line conventions because there are many different types of objects, and each line convention is useful for accurately/efficiently conveying information for a specific or broad range of shapes/features. There is no one line that is used today that has the function of all of the modern line conventions put together.
2. What is the purpose of a sectional view?
A sectional view shows a specified section of an object in greater detail than it is shown in the original model or drawing. This allows different scales of one object to be viewed simultaneously, so the features visible on each scale become visible (as opposed to keeping one set of details too small to see).
3. What is the purpose of an auxiliary view?
An auxiliary view is used to help machinists or other people create the part. It gives additional views of the object that needs to be made, so that the fabricators of the object know exactly what they are going to be making.
4. Why are symbols used instead of words to identify hole types?
Symbols are used in place of words to identify hole types in working drawings because symbols can convey the same meaning as words but utilize a smaller area. They are more efficient and faster to write than descriptions of the hole.
5. What advantage is there to using algebraic equations instead of numerical values when defining the dimensions of a CAD model?
N/A for now
6. What three types of constraints can be applied to CAD sketches or models?
The 3 types of constraints that can be applied to CAD sketches or models are:
7. What advantages do CAD drawings have over paper sketches?
Sketches are primarily concerned with the aesthetics of an object, while CAD drawings are meant to show all of the detail necessary to physically recreate the object. Thus, CAD drawings have the ability to convey dimensions and specifications of parts to a greater degree than paper sketches. In addition, CAD drawings do not have misleading shadows or other "artistic" aspects that take away from the features of the object.
1. Why are drawings composed of different line conventions?
Drawings are composed of different line conventions because there are many different types of objects, and each line convention is useful for accurately/efficiently conveying information for a specific or broad range of shapes/features. There is no one line that is used today that has the function of all of the modern line conventions put together.
2. What is the purpose of a sectional view?
A sectional view shows a specified section of an object in greater detail than it is shown in the original model or drawing. This allows different scales of one object to be viewed simultaneously, so the features visible on each scale become visible (as opposed to keeping one set of details too small to see).
3. What is the purpose of an auxiliary view?
An auxiliary view is used to help machinists or other people create the part. It gives additional views of the object that needs to be made, so that the fabricators of the object know exactly what they are going to be making.
4. Why are symbols used instead of words to identify hole types?
Symbols are used in place of words to identify hole types in working drawings because symbols can convey the same meaning as words but utilize a smaller area. They are more efficient and faster to write than descriptions of the hole.
5. What advantage is there to using algebraic equations instead of numerical values when defining the dimensions of a CAD model?
N/A for now
6. What three types of constraints can be applied to CAD sketches or models?
The 3 types of constraints that can be applied to CAD sketches or models are:
7. What advantages do CAD drawings have over paper sketches?
Sketches are primarily concerned with the aesthetics of an object, while CAD drawings are meant to show all of the detail necessary to physically recreate the object. Thus, CAD drawings have the ability to convey dimensions and specifications of parts to a greater degree than paper sketches. In addition, CAD drawings do not have misleading shadows or other "artistic" aspects that take away from the features of the object.