EGN1111C
Midterm term review
Midterm term review
Fichier Détails
| Cartes-fiches | 92 |
|---|---|
| Langue | English |
| Catégorie | Electrotechnique |
| Niveau | Université |
| Crée / Actualisé | 10.10.2019 / 10.10.2019 |
| Lien de web |
https://card2brain.ch/box/20191010_egn1111c
|
| Intégrer |
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Working Drawing
Complete set of plans so product can be built completely without any other information
Why working drawings exist?
New product, redesign of an existing product, system or service.
Universal Standards are set by these organizations:
ANSE, ASME, ISO
These are all parts of a working drawing:
Shape description (views), size description (dimensions), and miscellaneous information (notes).
Orthographic Projection
Drawing of a 3D product on a flat piece of paper by unfolding it's 6 sides and drawing the views perpendicular to your sight.
Prictoral Drawing
One view, with 3 sides. 3D image often in the upper right hand corner.
What kind of type lettering do you use?
Single stroke GOTHIC, inclined or verticle, and in one style only.
Text Characteristics
1/8", thick and black, words spaced by eye, 1/8" between rows of words.
Horizontal or inclined fraction bars? open 4 or no open 4?
Horizonal fraction bars. No open 4.
Sketching
A quick way of expressing an idea, drawn in PROPORTION but not always to scale.
Orthographic Views
Front, top and right side. Normally with 3 views but with a minimum of 2 views. No maximum view.
What view do you draw first? Which view is the entire drawing based on?
The drawing with the best shape description, fewest hidden lines, or position one is most accustomed to seeing.
Can you place views out of alignment to the others?
NEVER. Every view should line up with the other ones.
Basic overall dimensions of a drawing:
Height, width, and depth.
What is the front views' dimension?
Width and height
Top views' dimensions:
Width and depth
Right side's views' dimensions:
Height and depth
Line type of an object line:
Thick and black
Line type of a hidden line:
Dashed with a medium thickness, black line.
Line type of a center line:
Long-Short-Long-etc. dashed, thin and black line.
Line type of construction, projection, and guide lines:
Light, dull, and grey. Not visible to a copy machine.
Line precedence order:
Object>hidden>center
The tool used to create horizontal, straight lines. It has 3 parts: the head, which rests against the sides of a table; blade, which is the ruler part; and working edge, which is used for your pencil to guide itself along.
T-square
Used to create circles and arcs too big for a circle stencil.
Compass
30, 60, 90, or 45, 45, 90 tool used for verticle or perpendicular lines and drawing angles.
Triangles
Templates with set shapes and sizes such as circles and squares. Saves time.
Standard Templates
Used for irregular angels.
Protractor
Industrial grade paper often used for drawings.
Vellum
Used for irregular shapes.
French curve
Used for transfering distances.
Dividers
Hard leads for light lines
6H
Soft leads for dark lines.
2H or HB Leads
You ____________ lead on paper.
Burnish
You _____________ lead on sandpaper.
Dress
Circle viewed at an angle.
Ellipse
A flat surface
Plane
The edge of a plane viewed horizontally.
Line
Where two lines intersect
Point
Edge view of two intersecting planes
Angle
Point of intersection
Vertex
