Multiview Sketching

     Today, I tried multiview sketching. Multiview sketches provide different two-dimensional views on different sides of an object. A typical multiview sketch provide four sketches - a front, right side, and top view, along with an isometric. These are taken from glass box sketches, which include all six sides on an object and essentially act as a point of view of an object from every side if it were in a glass box. It was hard to interpret at first, but got a lot easier once I got used to it. 

Conclusion Questions

1. What is the purpose of construction lines? Object lines?

They help show the edges and the depth of different parts of an object. If part of an object sticks out, these lines will outline that part to indicate the difference in depth.

2. What is the purpose of hidden lines and center lines?

Hidden and center lines show edges behind parts of an object and symmetrical parts of an object. If part of an object is blocking another part, hidden lines will be used to indicate its existence. If a part of an object has a circle part within it, center lines can show the center of that object and indicate that it is a circle by proving its symmetry.

3. What type of pictorial is shown in the first representation in item 2? How can you tell?

The first item in number two looks like a one-point perspective sketch. I can tell because all of the lines going to the back seem to be tilted slightly towards the middle. That is probably where the vanishing point previously laid.

4. What type of pictorial view is shown in item 6? How can you tell?

In question two, item six looks like a two-point perspective sketch. The way the object is facing makes it look like it could be like a two dimensional drawing. The dimension shown is not tilted to one side, meaning that it was probably a two-point perspective sketch. This is because two-point perspective sketches seem “normal” because the depth isn’t going towards one side - it is going straight back, a two-point perspective sketch characteristic.  

5. Why would building professionals, such as machinists and contractors, prefer multiview drawings over pictorial drawings?

While pictorial sketches give a 3D drawing, they can hold a lot of hidden lines without any indication of its existence. Multiview drawings show all necessary sides so that every hidden portion is seen at some point. Within each view, any hidden parts are also indicated, even if it is not on the view shown. Although it isn’t in 3 dimensions, multiview sketches are helpful in clearly showing all of the object.