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Cards (100)
advantages of computer-aided design
-
CAD library
-
speed
-
storage
-
accuracy
disadvantages of computer-aided design
- data
theft
/viruses
- power/system
failures
-
expense,
training
advantages of manual methods
-
low cost
- can be
produced
on
site
- not
prone
to
viruses
/data theft
- freehand drawing are a
quick
way of generating a
range of ideas
disadvantages of manual methods
- each
graphic
must be
drawn separately
-
storage space
- cannot be sent
electronically
-
slower
- less
accurate
-
environmental
effect (paper)
role of
preliminary graphics
used at the
design
stage to generate ideas and allow for
evaluation
of ideas
role of production drawings
drawings that include
dimensions
and technical details so that products can be made and
buildings
constructed
role of promotional graphics
used in advertising to
promote
a
product
extrude
When
2D
profiles can be
pulled
into
3D
shapes
revolve
Tool to
rotate
a
profile
around an
axis
to make a
3D
feature
shell
Tool to
remove
the
interior
of a
3D
feature - hollowing it out
substraction
3D feature that is used to
remove
material
from another feature.
fillet
The command that allows an edge to be
replaced
by a
curve.
chamfer
The command that allows an edge to be replaced by an
angled face.
mate command
An
assembly command
, whereby
two faces join each other.
align
An assembly command, whereby two faces
line
up with
each other.
centre axis
To
align
cylindrical
objects, circular edges or circular faces.
Advantages of computer-aided design/draughting libraries
- Same component can be
reused
-
Standardisation
-
Speeds
up process
- No need to
re-draw
repeated
components
what is a location plan?
Drawing that identifies the location of the
proposed
new
building
within its
surroundings
use and scale of location plan
scale -
1
:1250
use - helps builder plan layout of building and is required by local planning officers
information on a
location
plan
Neighbouring buildings and boundaries, roads, street names and fields
what is a site plan?
Plan that shows site boundary and outline of new building
scale and use of
site
plan
scale -
1
:
200
use - helps builder to mark out site, lay drainage pipes and build manholes
information on a
site
plan
Paths, roads and neighbouring plots (also contour lines, drainage pipes and manholes)
what is a floor plan?
sectional view of
house
that shows
arrangement
of rooms
scale and use of
floor
plan
scale -
1
:
50
use - used by builders, electricians and joiners to help plan the construction work and to cost building materials
information on
floor
plan
positions of windows and doors, types of internal and external walls
what is a sectional view?
A
cross-section
showing a slice through the
wall
scale and use of
sectional
view
scale -
1
:
20
use - gives builders, joiners and roofers information about how the house should be built
information on
sectional
view
structural features (e.g. floorboards, joists etc.)
what is an elevation?
orthographic
projection of a
building
produced by the architect or
designer
information on elevations
style of building,
external appearance
,
roof style
, positions of doors, windows and chimneys.
alignment
The placement of text and graphics so they
line
up on the page.line
use of alignment
• create
order
•
group
items
•
organize
page elements
• create
visual
connections
dominance
when a graphic
stands
out
more
than others
use of dominance
to provide
visual
emphasis
to a certain thing
line
The use of
lines
on a
page
use of
line
-
separate parts
of a
layout
-
connect
parts of the
layout
- create
emphasis
by
underlining
- create
physical connections
between
graphics
Unity
When
different elements come together
in a
layout
use of
unity
to create a sense of
wholeness
and a
visually
logical
page (can be created by
proximity
, repitition etc.)
Depth
The creation of the
illusion
of
depth
in a layout
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