Text Book Notes Flashcards
What items don’t get sectioned in a sectional view?
- webs
-studs
-gear teeth
-axles
-pins
-ball bearings
-nuts and bolts
-keys
-roller bearings
-screws
What sectional view cuts all the way through an object?
Full sectional
What is a half-sectional view?
Half-sectional views cut away a quarter of the object. They are given the name ‘half section’ as they cut away half of a full section.
What is a stepped sectional view?
Stepped sectionals can also be called offset sections. They allow a cutting plane to change direction. 
Revolved sectional views
These views are used to save space and show the section of a long, constant-sectioned object. Revolved sectional views show the sectional view within the elevation of an object. They are rotated around a centerline and at 90° to it. The sectional view is shown on top of the elevation.
What are removed sectional views and why are they used?
Remove sectional views are similar to revolved sections, but are drawn outside of the original view. A cuttting plane is used to show where the section is made.
They are used to show small details and to help with clear dimensioning where required. For this reason, they are often drawn in enlarged scale.
Part sectional views?
Part sectional views are used when only a small part of the internal shape of an object is required and a full or half-section may not be necessary.
How to show a flat surface?
Shown using a cross
What is a web?
A web is a sloping bit of material added to an object in order to add strength. Webs are not hatched when sectioned to show them separately from the rest of the part.
Isometric views
Drawn at 30° and 30° angles
Used to produce 3D views as they show realistic but technically structured views of a product
Assembly drawings
Used to show how parts fit together
Not usually dimensioned
Exploded views
Allow you to see how a product is assembled
Auxiliary view
Looks at an object from an angle.
Used to show particular parts of a drawing in more detail.
Internal tangency
Where a circle or arc is inside another.
For internal tangency, SUBTRACT the radii of the arcs or circles from each other.
External tangency
Where the circles or arcs are outside each other.
For external tangency, ADD the radii together.
Inter penetration
I will never understand this and it rarely ever comes up.
I’m sorry but if this comes up in the exam you’re properly fucked.
Oblique view
(Cavalier oblique)
Drown from the front like an elevation and projected back at 45°. Depth drawn to full size. Circles are not distorted
Cabinet oblique
Drawn from front like an elevation and projected back at 45° but the depth is drawn to half the size.
Circles are not distorted
Planometric view
Used by interior designers as they clearly display internal details of a room. Drawn at either 45° and 45° or 30° and 60°.
Perspective views
Lines are taken to vanishing points in order to produce the perspective effect.
All things a colour could mean
-Primary secondary or tertiary -contrasting or harmonizing,
-warm or cool
-advancing or receding
-accent colors
Name the design elements
(SLMSTC)
-Shape
-line
-mass
-size
-texture
-color
Name the design principles
-Alignment
-balance
-contrast,
-depth,
-dominance
-unity/proximity
-white space
-proportion
-rhythm
-emphasis
-grid structure
Effects of line
-Connect and separate parts of a layout
-suggest movement within a layout -create visual interest
-underline
-frame
-flash bar
