Freehand Sketching Flashcards
is a process or the ability to draw something without relying on any
instruments like those that we use for measurements. We only depend on our hands to illustrate
something.
Free hand sketching
by definition, is a way of drawing that is quick and rough. Artists used this
method to plan their ideas which were drawn on a paper.
Sketching
are commonly used in technical drawing to
show an item in 3D on a 2D page.
Isometric drawings
Represents a 3D object using the 2D views of
an object.
Orthographic Sketch
Hand sketches are efficient for problem solving construction details. A
number of illustrations can be produced quickly, incorporating varying ideas that
reach a single solution.
details
The analysis of a project’s site is often documented
with overlaid diagram sketches illustrating wind directions, solar paths, topography
and terrain, vegetation etc.
site analysis and planning
Thickness of the line
weight
The object line, the cutting plane line, and the short break
lines should be drawn (what?)
thick (like ur mum)
The center lines, dimension lines, extension lines, long-
break lines, and phantom lines should be (what?)
thin like ur brain
the hidden should have an (what?) thickness between the thin and
the thick lines.
intermediate
Thick lines are (what to what mm) wide,
0.5 - 0.8
thin lines are
between (what? to what)) wide.
0.3 - 0.5
Very Thick and Solid
Continuous
Used to show the boundary of the drawing.
Separate different objects drawn on one sheet.
Used to separate the title block from the rest of the
drawing.
Border Line
Thick and Solid
Continuous
Used to outline the visible edges or contours of an
object.
Define features you can see in a particular view.
Visible Line
Medium
Broken Line
Used to show surfaces, edges, or corners of an object
that are hidden from view.
is composed of approximately 1/8” (2-3 mm) long
dashes with 1/16” (1-2 mm) spaces between each.
Hidden Line
Thin
Combination
Show the actual size or measurement of an object.
Capped with arrowheads at both ends that terminate at
the extension lines.
Dimension Line
Thin
Shows the limits of dimensions.
Dimension line arrowheads touch (blank)
The (blank) is drawn approximately 1.5mm away
from the object line and is extended 3mm long beyond
the outermost arrowhead.
extension line
Thin
Combination
Used to show the centers of holes, arcs, and
symmetrical objects.
Composed of alternating long and short dashes/ lines
Long Dash- 20- 40 mm
Short Dash- 3mm
Spacing In Between- 1.5 mm.
center line
Heavy Thick
Combination
Shows the internal shape of an object by mentally
slicing it.
Used to show where the drafter has taken a sectional
view to better describe that object.
cutting plane line
Thin
Continuous
Shows the surface that has been cut,
They are spaced evenly at 45 degrees horizontally to
make a shaded effect.
Section lines
thin
Continuous
Used to point to an area of a drawing requiring a note
for explanation.
Dimension
Label
Preferably drawn at 45° angles.
leader line
Used to break out sections for clarity or for shortening
a part.
Break line
Thin
Continuous
Used to show that the middle section of an
object has been removed so it can be drawn
on a smaller piece of paper.
Also known as limiting line.
Long break line
Thin
Continuous
Used to show round parts that are broken in
half to better clarify the print or to reduce the
length of the object.
cylindrical break line
Thin Line
Indicates that a part of an object is movable.
Are made up of long dashes alternating with pairs of
short dashes.
phantom line
a design plan or other technical drawing
➢ draw up (a plan or model)
➢ building plans and specifications form part of the working
drawings needed in any construction project.
blueprint reading
essentially shows the location of a building or house site.
It includes the following:
● Lot Number
● Distance of the house from the site boundaries
● Name of the road on which the site is located.
Actual size of the site
● Compass direction
● Position and size of casement
● Scale of the drawing
site plan
is a scaled drawing of the front rear or side of a building.
it includes dimensions that cannot be shown on a floor plan such as
the height dimension.
Elevation
Most working drawings are drawn to the scale of 1:100
which is rather small. It is not always possible to show important
shapes, positions for assembly, and dimensions of specific parts of
a building. A separate drawing is made using the larger scales of
1:5 or 1:10.
details
is a written document prepared by an architect
which serves as a set of instructions or guidelines that accompanies
a working drawing. It describes how certain aspects of building
construction are to be done and which materials are to be used. It
also describes their desired quality and the expected standard of
work.
specification
