Automoblox Parts on Inventor
5.2b: CAD Modeling Skills
5.2b CAD Modeling Skills Conclusion Questions
1. What advantages do CAD sketches have over freehand sketches?
Doing CAD sketches on Inventor are more accurate as to doing them over freehand sketches. It also allows you more freedom to add different features.
2. What disadvantages do CAD sketches have when compared to freehand sketches?
CAD programs used to make sketches are very expensive and it requires a fast computer. Also, if the program is down, you may lose all your work.
3. What types of numeric constraints may be applied to sketches?
Dimensional and geometric constraints can be added to sketches.
4. Explain the difference between the Fillet sketch tool and the Fillet placed feature.
Fillet sketch tool is used on 2D sketch and must me extruded to be able to see the feature while Fillet place feature is used on 3D sketch and there is no extrusion needed.
5. The Fillet placed feature is used to create both a “fillet” and a “round”. Describe the difference between the two results.
Fillet increases the strength of the material while rounds are used to prevent chipping.
6. Could the Shell feature be used to create the opening in the Automoblox body passenger section (as in number 2 above)? Explain your answer.
No, you can't use the shell feature to create the opening in the Automoblox body passenger section because shell features are based in the center of your plane and the opening isn't on the center of the passenger section. Also, there are fillets that must be done.
1. What advantages do CAD sketches have over freehand sketches?
Doing CAD sketches on Inventor are more accurate as to doing them over freehand sketches. It also allows you more freedom to add different features.
2. What disadvantages do CAD sketches have when compared to freehand sketches?
CAD programs used to make sketches are very expensive and it requires a fast computer. Also, if the program is down, you may lose all your work.
3. What types of numeric constraints may be applied to sketches?
Dimensional and geometric constraints can be added to sketches.
4. Explain the difference between the Fillet sketch tool and the Fillet placed feature.
Fillet sketch tool is used on 2D sketch and must me extruded to be able to see the feature while Fillet place feature is used on 3D sketch and there is no extrusion needed.
5. The Fillet placed feature is used to create both a “fillet” and a “round”. Describe the difference between the two results.
Fillet increases the strength of the material while rounds are used to prevent chipping.
6. Could the Shell feature be used to create the opening in the Automoblox body passenger section (as in number 2 above)? Explain your answer.
No, you can't use the shell feature to create the opening in the Automoblox body passenger section because shell features are based in the center of your plane and the opening isn't on the center of the passenger section. Also, there are fillets that must be done.
5.5 CAD Model Features
5.5a CAD Model Features Conclusion Questions
1) What 3D functions can be used to create a wire coat hanger?
You can make a 2d sketch and use the sweep function to model the wire coat hanger.
2) For each of the following, sketch a 2D shape and an axis of rotation that you could use to model each of the following solid forms using the Revolve function within 3D modeling software.
1) What 3D functions can be used to create a wire coat hanger?
You can make a 2d sketch and use the sweep function to model the wire coat hanger.
2) For each of the following, sketch a 2D shape and an axis of rotation that you could use to model each of the following solid forms using the Revolve function within 3D modeling software.
![Picture](/uploads/2/2/4/2/22423108/1384699113.jpg)
a. A solid cylinder with a diameter of 3.5 in. and a height of 7 in. Be sure to dimension the shape.
Construction line: axis of rotation
Construction line: axis of rotation
3) How would you model a solid sphere using the revolve function?
You sketch half a circle then treat the straight side as the axis of rotation; finish sketch and revolve.
You sketch half a circle then treat the straight side as the axis of rotation; finish sketch and revolve.
4) For each of the following, describe the solid form that would result from rotating the given shape about the axis of rotation by the given rotation angle.
5.5b CAD Model Features Conclusion Questions
1) What CAD feature would be used to most efficiently model a baseball bat (Extrude, Loft, Revolve, Sweep)? Explain your answer.
To most efficiently model a baseball bat, the revolve function would be used. Make a 2d sketch of half a baseball bat, finish sketch, and revolve.
2) How does a 3D CAD solid model program display the progression of work involved in creating a model?
When you open Inventor, it'll show "recent files" you've worked on.
3) If a mistake is made, how does the user make a correction without using the undo function?
Go to your browser and you can right click the features and edit them.
1) What CAD feature would be used to most efficiently model a baseball bat (Extrude, Loft, Revolve, Sweep)? Explain your answer.
To most efficiently model a baseball bat, the revolve function would be used. Make a 2d sketch of half a baseball bat, finish sketch, and revolve.
2) How does a 3D CAD solid model program display the progression of work involved in creating a model?
When you open Inventor, it'll show "recent files" you've worked on.
3) If a mistake is made, how does the user make a correction without using the undo function?
Go to your browser and you can right click the features and edit them.
Automoblox Explosion
Description: Reverse Engineering is an important process in the documentation and redesign of products. Through reverse engineering all aspects of a product can be analyzed. There are many reasons to reverse engineer a product. This can provide information on products for which documentation has been lost. Reverse engineering can help us determine what changes we can make to improve the product
Conclusion
1. Is there another reason for product disassembly besides the modeling and electronic documentation of parts?
Reverse engineering is done not only for modeling and documentation, but also to make changes to improve the product, and even for military or commercial intelligence
2. Explain the process used to complete a mass property analysis, and explain why this process is commonly used in industry.
Mass property analysis involves measuring the weight, determining the center of gravity, weight and other properties of a product. It is commonly used in the industry prior to manufacturing the product.
3. Describe how important it is to have good interpersonal communication skills in a technically related field, such as engineering and design.
Having good inter-personal skills is not only necessary in engineering but also other technically related fields. Time is valuable and being able to work with others efficiently helps get the work done early.
Conclusion
1. Is there another reason for product disassembly besides the modeling and electronic documentation of parts?
Reverse engineering is done not only for modeling and documentation, but also to make changes to improve the product, and even for military or commercial intelligence
2. Explain the process used to complete a mass property analysis, and explain why this process is commonly used in industry.
Mass property analysis involves measuring the weight, determining the center of gravity, weight and other properties of a product. It is commonly used in the industry prior to manufacturing the product.
3. Describe how important it is to have good interpersonal communication skills in a technically related field, such as engineering and design.
Having good inter-personal skills is not only necessary in engineering but also other technically related fields. Time is valuable and being able to work with others efficiently helps get the work done early.