Unit Three - 3D Modeling

Write an abstract (brief paragraph) on the use and importance of CAD:

CAD, or computer-aided design is the use of computers in the creation of everything from models, to sketches, to designs. CAD's importance lies largely in computer's ability to create and render models with a degree of accuracy impossible for humans to achieve. By having geometric principles and equations built in to CAD software, one can create anything from triangles, to cubes, to full mechanical devices with near-perfect measurements. This leads to products that are much more effective and precise.

What are the advantages of using computer aided design to create a model versus using a hand drawn sketch?

The advantage of using CAD to create a model, as opposed to using a hand drawn sketch, is the accuracy and assistance provided. Rather than have to create a circle with a compass, and risk inaccuracies, a CAD program's built in circle tool can create a circle with pinpoint precision. This ensures that manufactured models run with the utmost efficiency.

Why is it important to following the Rules of Dimensioning when adding dimensions to a drawing?:

It is important to follow the Rules of Dimensioning when adding dimensions to a drawing as it results in a cleaner, more understandable drawing. Because of the standardized nature of the Rules of Dimensioning, any engineer can understand a properly dimensioned document.

Choose 3 of the Rules of Dimensioning and type out the entire rule. Explain why these 3 rules are vital to follow when adding dimensions to a drawing:

1. Dimensions should reflect the actual size of the object, not the scaled size.

This rule is exceedingly important, as without it, it would be impossible to maintain the correct size for objects. For instance, if a 5 inch dimension was meant to represent the scaled height of the Empire State building, the actual building wouldn't be 5 inches, because that is only the scale size. Otherwise, we wouldn't have any tall buildings.

2. Include all dimensions necessary to produce or inspect the part. 

This rule is important, as without all dimensions, a product cannot be manufactured. 

3. Do not include unnecessary dimensions.

While not necessary, this rule is important in order to maintain the cleanliness and legibility of a sketch. With too many dimensions, a sketch can get crowded and hard to read.

Answer the following in regards to your Isometric Castle 3D Model:  

If you had a chance to further improve this model, how would you do so?

If I had a chance to improve further open my model, it would be by adding floors and detailed interiors to the central and surrounding towers. Currently, they are completely hollow, with entrances.

What difficulties did you encounter in creating this model? How did you address these issues (trade-offs)? 

I encountered countless challenges in creating this model. From the disorganization of my bodies, to difficulties with the appearance command, I often struggled until I found a subpar alternative. However, I feel I improved tremendously in creating this model. I am now able to use many new commands, and I organize and name all bodies. I also keep any bodies separate unless it is necessary to combine them. This being said, as I was less skilled in the beginning, the foundation of my model (Not the literal foundation (: ) was flawed. The mistakes piled up, and I eventually found it easier to restart. Things went substantially smoother on the second attempt, and I am very happy with the resulting model, despite the extra work it required.