Project Description
For this assignment, we were given a packet with 9 individual parts for a toy train and instructed to create them in Inventor (with the given dimensions), assemble the pieces, and dimension the pieces as well as the assembled and exploded view. Below includes all of this criteria.
Pieces (With Dimensions)
First shown is the train body and smoke stack. Other pieces below include the hitch magnet, the hitch peg, the axle peg, the cow catcher, and linkage peg.
Presentation
Conclusion
Q1:
Challenges
The challenges I faced during this project included correctly dimensioning each part as well as assembling the train. When dimensioning, there are certain guidelines you must follow (i.e. do not dimension to hidden lines, do not over/under dimension, do not cross dimensions when possible, etc) which can add a bit of stress while working. Assembling is difficult because you have to understand how each constraint works and which faces you are constraining. Overcoming these challenges gave me the skill to do use these tools properly in the future.
Q2: What is the purpose of a sectional view?
A sectional view shows the inside of the figure, which is useful in better observing any holes the object has and seeing if the object is hollow or not. The two types of sectional views are full section views (show half of the object) and half section views (show one-quarter of the object). To see an example of a full section view, look at the wheel piece dimensions.
Q3: What is the purpose of an auxiliary view?
An auxiliary view better shows a feature on a face of an object that is not clearly depicted in other views. To see an example, view the images of the cow catcher piece dimensions.
Q4: What is the purpose of a broken view? A broken view removes a portion of the object from the original view to better show other features.
Q5: Why are symbols used instead of words to identify hole types?
Symbols are used instead of words to identify hole types because they are less likely to be mistaken and also save space.
Q6: Why do we need tolerances?
Tolerances are important because they provide a margin of error for the engineer. Without tolerances, we would need to use exact measurements, which would involve machines constantly being updated (because as they age, they become slightly less precise).
The challenges I faced during this project included correctly dimensioning each part as well as assembling the train. When dimensioning, there are certain guidelines you must follow (i.e. do not dimension to hidden lines, do not over/under dimension, do not cross dimensions when possible, etc) which can add a bit of stress while working. Assembling is difficult because you have to understand how each constraint works and which faces you are constraining. Overcoming these challenges gave me the skill to do use these tools properly in the future.
Q2: What is the purpose of a sectional view?
A sectional view shows the inside of the figure, which is useful in better observing any holes the object has and seeing if the object is hollow or not. The two types of sectional views are full section views (show half of the object) and half section views (show one-quarter of the object). To see an example of a full section view, look at the wheel piece dimensions.
Q3: What is the purpose of an auxiliary view?
An auxiliary view better shows a feature on a face of an object that is not clearly depicted in other views. To see an example, view the images of the cow catcher piece dimensions.
Q4: What is the purpose of a broken view? A broken view removes a portion of the object from the original view to better show other features.
Q5: Why are symbols used instead of words to identify hole types?
Symbols are used instead of words to identify hole types because they are less likely to be mistaken and also save space.
Q6: Why do we need tolerances?
Tolerances are important because they provide a margin of error for the engineer. Without tolerances, we would need to use exact measurements, which would involve machines constantly being updated (because as they age, they become slightly less precise).