Week 3: Multiview Drawings – 1 Here’s what we talked about last time Let’s now take another look at multiview drawings in more detail

Week 3: Multiview Drawings - 1 Here’s what we talked about last time Let’s now take another look at multiview drawings in more detail www.phwiki.com

Week 3: Multiview Drawings – 1 Here’s what we talked about last time Let’s now take another look at multiview drawings in more detail

Hoekenga, Elizabeth, Media Desk Manager has reference to this Academic Journal, PHwiki organized this Journal TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings – 1 TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 Here’s what we talked about last time TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 The “Alphabet of Lines” Lines have both style in addition to precedence. Object (visible) lines are the MOST important then hidden lines then center lines etc.

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TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 Examples of Sketches: Multiview Sketch Pictorial Sketch TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 Sketches use “proportion”, not scale! Proportion allows the designer to use approximate values to create a balanced looking object. Sketches are accurate freeh in addition to drawings which use single lines to represent edges in addition to features. Multi-line sketching is NOT used in engineering design. (Scribbling!) TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 Classification of Sketches: Each classification of sketch has a particular purpose from production use to technical illustration.

TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 Projection types: Here’s how the same object may look using different projection styles. TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 Projection types: Projection type is defined by the “line of sight” from the observer. Let’s look at some of these TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 Let’s now take another look at multiview drawings in more detail

TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 We have already seen how views are aligned with the surface of an object. Using the “glass box” method of visualization helps us underst in addition to the relationship views have with one another, i. e. the front view is next to the top in addition to right side views, etc. TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 Here we can see all the principle views of an object as the glass box is unfolded. It is easy to see that some of the principle views have more detail through the use of object (visible) lines than others. Always choose views that have the least amount of hidden lines in them in addition to show the most detail. TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 Using miter in addition to projection lines, we can easily transfer “space dimensions” between views.

TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 Projection methods: 3RD Angle (US St in addition to ard) ISO (1ST Angle Metric St in addition to ard) NOTE: Reverse construction methods work just as well in 1ST Angle projection. TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 Here, we can see that surface C is shown as both as object in addition to hidden lines depending on the view we are looking at. Remember: One definition of a “line” is that it is the geometry on the edge of a surface. (Surface C appears in its edge view in the front in addition to top views.) TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 When choosing which of the principle views to draw, remember these rules: 1. Choose as many views as it takes to show ALL the details of the object. The front view usually shows the most detail, or best view of the general shape of the object in its natural position. 2. Choose views that shows a majority of object (visible) lines, in addition to a minimum of hidden lines. 3. Choose views that show features as surfaces first, in addition to as lines second.

TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 Always try to draw views in their most natural position. This is obviously more difficult to visualize! TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 Why is the left side view not required ANSWER: It doesn’t add any new in as long as mation! TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 Why is the left side view not required ANSWER: It has too many hidden lines!

TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 Surfaces will appear as edges at times. Edges may be as long as eshortened (shorter than normal), or “True Length” (TL). TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 Oblique edge lines are created by oblique surfaces. These are surfaces that are neither true shape or true size in any principle view. TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 Even simple, primitive shapes often need several views to fully describe their topology.

TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 “Limiting Elements” are lines that show the outer boundaries of cylindrical or conical objects. How many views of such objects are usually needed to show its shape TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 Remember: In multiview drawings, tangency is shown between to surfaces by the absence of any line. Here, the arched in addition to planar surfaces are tangent. Arched in addition to planar surfaces which are NOT tangent. TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 Holes in addition to cylinders may appear “True Shape in addition to Size” (TSS), or as long as eshortened depending on the view in which they appear. (Foreshortened circles will appear as ellipses.)

Hoekenga, Elizabeth TimesDaily Media Desk Manager www.phwiki.com

TECH 104 – Technical Graphics Communication Week 3: Sketching Assignments TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 3 TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 4

TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 13 TECH 104 – Technical Graphics Communication Week 3: Multiview Drawings 1 18 TECH 104 – Technical Graphics Communication Week 4: Multiview Drawings – 2

Hoekenga, Elizabeth Media Desk Manager

Hoekenga, Elizabeth is from United States and they belong to TimesDaily and they are from  Florence, United States got related to this Particular Journal. and Hoekenga, Elizabeth deal with the subjects like Local News

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This Particular Journal got reviewed and rated by Ecole Normale Suprieure de Paris and short form of this particular Institution is FR and gave this Journal an Excellent Rating.