DIBUJO CARLOS ESTURBAN
-
Upload
acharly-esturban -
Category
Documents
-
view
213 -
download
0
description
Transcript of DIBUJO CARLOS ESTURBAN
2
INTRODUCCION
This book is also drawing is building as plans leeer The word "graph"
means "Concerning the expression of Ideas by Means of lines or marks
on a surface." Then a drawing (plan) is a graphical representation of
something real. The drawing, Therefore, it is a graphic language I use
figures to Communicate Thoughts and ideas.
As a drawing is a set of instructions Comply With The That must operator,
Should Be clear, correct, accurate and complete. The fields are as
diverse as Specialized branches of industry. Some of the main areas of
the drawing are: mechanical, architectural, structural and electrical.
The term "technical drawing" Applies to Any Design That Is Used to
express technical ideas.
3
INDICE
CARATULA ………………………………………………… 1
INTRODUCCION……………………………………………….… 2
INDICE ……………………………………………….... 3
CONTENIDO …………………………………………………… 4 - 29
CONCLUCION ………………………………………………….. 30
BIBLIOGRAFIA ……………………………………………………. 31
4
Concept Plan
The word "graph" means "concerning the expression of ideas by means of
lines or marks on a surface." Then a drawing (plan) is a graphical
representation of something real. The drawing, therefore, is a graphic
language he uses figures to communicate thoughts and ideas.
As a drawing is a set of instructions that must comply with the operator,
should be clear, correct, accurate and complete. The fields are as diverse
as specialized branches of industry. Some of the main areas of the drawing
are: mechanical, architectural, structural and electrical.
The term "technical drawing" applies to any design that is used to express
technical ideas.
Implementation of Plans
As in the beginning of time man has used drawings to communicate ideas
to peers and to record them, so they do not fall into oblivion.
Man has developed the drawing along two distinct branches, using each
form for a different purpose. Artistic drawing is concerned primarily the
expression of ideas, real or imagined cultural. Instead, the technician
drawing the expression of ideas concerns technical or practical nature,
and is the method used in all branches of industry. In the daily activity is
very useful knowledge to understand drawing house plans, instructions for
assembly, maintenance and operation of many manufactured goods plans
and specifications of many hobbies and other leisure activities.
Classification Plans Drawings can be classified into:
General Plan or Set.
• Manufacturing and Exploded Drawing.
• Mounting plane.
5
•
Explosive Perspective Plan.
General Plan or the Joint
The Site Plan provides an overview of the device to build, so you can see
the status of the various component parts, with the relationship and the
commonalities between them.
The main function of the overall plan is to enable the assembly. This
implies that the vision should prevail in the situation of the various
parties, on the representation of detail.
The whole figure, we observe the following features, generally applicable to
any overall plan
• When performing the assembly drawing, you must take into account all
the issues of standardization, drawing format, line weights, scales, layout views, cuts and sections, etc..
• In the assembly drawing should draw the necessary views. In the figure of
example, it is necessary to draw the left profile view, as they already are and reference all the pieces in the elevation. We've included to give a better idea of how the whole.
• To see the inner parts must be made the necessary cuts. Because what
matters is to see the distribution of the pieces, you can combine different cuts in the same view. The elevation of the example, we have represented a
cut in the plane of symmetry of the parts 4, 5, 6 and 7 combined with a cutting plate 10 by the screw axis and a partial cut parts 1, 2 and 3 .
• In the assembly drawing must identify all the parts that compose it. So
you have to assign a mark to each piece, linking them through a reference line. These marks are essential for the identification of parts over the documentation and manufacturing process.
To have fully identified the pieces to be included in the overall drawing a list of items. This list should add information that you can see in the picture. For example, overall dimensions, the nominal size, standard
designation, or commercial standard references, materials, etc.. Because of the importance of marking parts and the list of elements, widely discussed
6
in the following points.
• Since they are clearly identified parts of the whole, we can simplify the
representation, especially in the case of standard and commercial items.
The following figure represents a set of four pieces, clearly showing the status of each.
In the figure below, hay simplified representation of the screw and washer. Since they are clearly identified, and who will go horseback riding
knowledgeable enough to correctly both the screw and the washer, the end result is the same. Thus we have simplified the design, facilitating their understanding and reducing time to fulfillment.
When assembling, have all the parts produced on the table, so who do the
installation only needs to know how to identify them properly and where to put them. •
All technical drawings should include dimensions necessary. Since the pieces are finished, at the only set of dimensions necessary to provide the performance or testing of the assembly.
Overall in the figure is essential to draw the dimension of 35 mm, since it indicates the separation welder must weld the two brackets on the motherboard. Note that there has been a partial cut on the right support
(part # 3) to establish its orientation.
Manufacturing and Exploded Drawing
Refers to size each of the elements to build or manufacture according to
process (machining, casting, stamping, etc..), In accordance with dimensions shown on the map. •
Machining: get the piece according to the plan either through processes of turning, milling, or planing.
• Cast: The dimensions of the castings are larger than real because they are
subject to other processes. •
Pattern: This is done through the use or application of matrices.
7
Mounting Plane
These plans are often made to fully represent simple objects such as pieces
of furniture, where the pieces are small and do not have complicated
shapes. All dimensions and information necessary for the construction of
this piece and for assembling all the pieces are given directly in terms of
assembly..
Design floor plans: When designing a machine, first of all is a plan or design to clearly
visualize assembly operation, the shape and the different game pieces. From the assembly drawings are detailed drawings and each piece is
assigned a number. To facilitate assembly of the machine, the assembly plan placed the
numbers of the different parts or details. This is done by attaching small circles (from 3 / 8 inch. To ½ inch. In diameter) that contains the number of the piece, with pieces by lines for signs. It is important that detailed
drawings are not identical numbering schemes when using multiple BOMs.
Mounting Installation Drawings:
This type of assembly plan is used when employing many inexperienced
people to assemble the different pieces.
How are you people generally are not trained in reading engineering
drawings, pictorial drawings using simplified assembly.
Catalogs Mounting Drawings:
Assembly drawings are specially trained to catalog companies. These
assembly drawings show only the details and dimensions that may interest
the potential buyer. Often the plane has dimensions expressed in letters
and is accompanied by a table that is used to encompass a range of
8
dimensions.
Unarmed floor plans:
When a machine needs service, repairs usually are made locally and does
not return the machine to the construction company. This type of shot is
often used in the appliance repair industry, which uses the assembly
drawings for the repair work and for the period of replacement parts. It is
also often used this type of assembly plans by companies that make DIY
equipment, such as model making equipment, where the plans must be
easily understood.
Explosive Perspective Plan
The perspective plan is intended to indicate explosive in an orderly and
accurate sequence location of the pieces that form a whole, thereby
allowing any operator to make disarmament and later, made the repair,
assemble the whole plane following information .
How to Make a Site Plan
The overall plan explains the different pieces that make up the object and
the relative placement of each.
To do this we will view the set (may serve an equally drawn to the general
level) and identified by markings (consecutive numbers enclosed in a circle
and point to each and every one of the pieces of the machine) each one of
the pieces that make up the object. Beside drawing up a schedule in which
each brand is associated with the name of the part to which it corresponds
(always singular).
The list is built starting with the mark "1", which will go on the bottom and
continuing up sequentially. If more columns are needed to be written one
on the right of the previous and so on.
When the object or planned technical system has some degree of
complexity can be used to divide the whole into its functional parts, and
then perform the assembly drawing of each of these parts.
9
If we do well this section we will find many errors that we would have gone
unnoticed: pieces that we had not taken into account dimensions that do
not match, the possibility of repeating the same parts and initially had
considered different.
architectural project
In the field of architecture, an architectural project is the set of plans,
drawings, diagrams and explanatory texts used to translate (paper, digital,
model or other means of representation) the design of a building before it
was built . In a broader concept, the entire architectural project design
includes the development of a building, the distribution of uses and
spaces, how to use materials and technologies and the development of all
plans, details and perspectives.
10
Design stages of a project
1. Definition of scope, needs or objectives: To develop an architectural
project, carried out a preliminary investigation process that guides
the architect in their task throughout the project. The interpretation
by the Architect of the results of this stage is largely defines the
personality of the project. Identified in this process start three basic
activities:
Program approach. It refers to the initial stage where a client seeks a
specialist (in this case, architect) to design a building that meets
your specific needs and uses of space. The client also describes the
designer's resources which should be based (land or existing
building, budget, execution time, etc.).
Interpretation of the program. The architect studies the needs of the
customer and according to their interpretation and their professional
capacity, establishes the objectives to investigate before making a
proposal. The interpretations that the architect makes the
11
customer's needs will guide the next stage, but are always subject to
change as you progress further the design process.
Research. Taking the results of the two previous stages, it is also
analysis and synthesis of information. First, it requires field research
and literature to enable the details of the building, according to their
type.
2. Program Design: The results of research synthesis, the designer
makes a list identifying the components of the system and its
particular requirements. This list is called the Architectural
Program. For example, the draft of a house, or room-family
(apartment), the program would include more of the following
elements:
Access
Porch
Driveway or garage
Foyer or hall
Room or living room
Dining room
Kitchen
Room service
Guest bathroom
Dormitories
Toilets
Terrace
Garden
Patio
3. : From the architectural program, the designer makes a graphic
scheme, similar to a flowchart, which represents every element of the
program and associated with lines or arrows according to the relations
between the spaces. For example, the kitchen should be related to the
dining room, but not the bedrooms. By the presence (or absence) of
arrows indicates this relationship. In this graph the relationships
between the spaces is called architectural diagram.
4. Design of the basic scheme: Studied as a stage of realization of an
architectural project, the design is the process of translating the results
into useful forms of all previous stages, which are represented
12
graphically in the later stages. It is considered a creative process that
involves elements such as:
Scenario Design: A conceptual approach to design object, which will
then be subject to change. Are considered simultaneously, with equal
or variable importance (according to the design philosophy of each
architect) aspects of architectural context, structural criteria, form,
function, budget and even fashion.
Zoning: The arrangement of the components of the design established
in the architectural program based on logical and functional relations
between them.
Outline: Three-dimensional structure is the architectural diagram,
applied in a specific area with emphasis on the qualities of systems,
subsystems, components and subcomponents.
Party: The realization of the solution architecture, shaping spaces
designed to fulfill its function. Sometimes, the designer produces two or
three games (preliminary design options) before settling on one that will
become a draft.
5. Draft: It consists of a set of drawings, models or other means of
representation that explain for the first time in a graphic way, but at
the outset, how it is designed the building. It represents the building on
the ground (horizontal section, top view), elevation or elevations (front
view of the facades), cuts or sections and perspectives. Generally,
although the drawing is scaled only include general dimensions. Its
purpose is purely preliminary, so the customer decide if the design is
pleasing and meets your requirements. In the event that the Bill is
approved, then performed the final draft.
6. Basic or Architectural Project: Used to describe the overall building
design: form, function, distribution, construction system, represented
in drawings, models or computer models, with a specification and a
general budget. It includes the urban characteristics of the building and
is often used to check its feasibility in official and sometimes processing
the request "building permit" subject to the submission of the relevant
Project Implementation (in Spain).
7. Project Execution: The purpose of the whole design process is the
Executive Project is defined as the set of plans, drawings, diagrams and
explanatory texts (Report and Budget) used to properly define the
building. It represents the building floors, elevations or elevations,
13
sections or sections, perspectives, models, three-dimensional model
(using computer techniques or CAD) or others, for consideration by the
client and designer. All plans must be to scale and properly
dimensioned along the lines of technical drawing, marking the
dimensions of the building and its location in the field, its orientation
with respect to magnetic north, the configuration of all spaces, quality
and materials and design details that deserve special mention.
Project Components (Basic)
The elements constituting the Basic Architectural or Project are:
Ground plane.
Location maps and location.
Plant whole.
Architectural floor plans.
Architectural elevation drawings or elevations.
Architectural plane cuts or sections.
Architectural drawings.
budget
In complementary fashion, usually include some or all of the following
means of representation:
Perspectives.
Storyboard.
Visit or virtual three-dimensional animation, using CAD software.
Executive Project, Project Implementation (construction plans)
It is a further step to the architectural project itself, and is prepared
when the design has been approved by the client and its construction is
imminent. The main difference with the Architectural and Basic Project
is that the earlier graphically describes "what to do" while the Executive
Project specifies "how it will do." Working on the basis of the plans that
integrate the architectural project, the same architect or a civil engineer
working as a team, adds information and technical specifications for
the builder and the various contractors to explain in detail what
materials and what techniques be used. In addition to the planes that
make up the package of architectural plans, must include at least the
following drawings and documents:
Plane Surveying earthworks, or topographical.
14
Structure plans of foundation.
Plans rudeness of walls, or reframing of walls.
Plans porches with columns and beams.
Drawings of floor slabs and roofs or floors.
Sanitation facilities Plano buried.
Plans installations: electrical, plumbing, sanitary, fire, mechanical,
special voice, data, and so on.
Enclosure and partitioning plan defines the enclosure and partitioning
elements: walls, partitions, doors, windows, fences, deck, and so on.
Plans Finishes finishes: flooring, paint, plaster, acoustic and thermal
insulation, waterproofing, and so on.
Construction Drawings of the elements that make outdoor areas:
sidewalks, landscaping, fencing, facilities, and so on.
Plans Construction details of construction details (for trades).
Constructive specification and applicable regulations.
Regulatory compliance sheets.
Justification of the solutions adopted
Programming of the work.
Structural calculation report.
Catalog of concepts or specifications.
Quantification of work or Budget Budget (with detailed measurements
and unit prices).
Design Process
Before even starting with the architectural design of a building, many issues must be considered preliminary. First, the situation of the property,
or land, its size and topography, along with guidance on factors affecting the place as light, sunlight, views can be admired, and the conditions for the supply electricity and water and sewer, during and after construction.
Once solved the above, should be assessed the space needs of the building
such as floor area, height of mezzanine or plants, the relationships between spaces, uses, etc.. The set of architectural requirements is also known as architectural program.
As important as the previous point is to consider the budget available for
construction, as before drafting the plans should be clear how much money they can invest, to avoid designing a project so expensive that it can not be paid by the owner or developer.
15
technical Drawing The technical drawing is a graphical representation of various types of objects,
in order to provide sufficient information to facilitate analysis, design to help
develop and enable the future construction and maintenance. Usually
performed with the aid of computerized or directly on the paper or other media
plans.
Is a graphical representation of an object or a practical idea. This
representation is guided by fixed and predetermined rules to describe
accurately and clearly, dimensions, shapes, features and build what you want
to play.
Objects, parts, machines, buildings, urban plans, and so on., Are usually
represented in the plan (top view, top view, ground floor, deck, etc..), Elevation
(front or front and side, at least one ) and sections (or short break), clearly
indicating its dimensions through dimensions, are needed at least two
projections (views of the object) to provide useful information about the object.
Forms of expression
Technical drawing includes work such as sketches and / or diagrams,
schematics, diagrams, blueprints, electrical and electronic representations of
any kind of mechanical, architectural plans, town planning, etc.., Determined by
the help of geometric concepts, which are applied the mathematics, Euclidean
geometry, different types of perspectives, scales, etc..
16
Media and media
The drawing can be expressed in a variety of materials such as various types of
paper, linen or acetate (mylar), also can be projected on screen, displayed on
monitor, graphic animations recreate the volumes, and so on.
Tools and instruments
For technical drawing using various tools or instruments: rules of various kinds,
compasses, pencils, set squares, bevel, chalk, markers, etc. Currently, the
computer is preferably used in its watershed through programs aided design
(CAD, 3D, vector, etc.) with optimum results and continuous improvement
process.
Architectural Drafting
The architectural design encompasses a range of graphical representations
with which we carry out the plans for the construction of buildings, houses,
villas, roads, churches, factories and bridges among others. Draw the project
with accurate instruments, with their respective details, adjustments and
corrections, which shows floor plans, facades, sections, perspectives,
foundations, columns, and other details.
Mechanical Drawing
The mechanical design is used in the representation of objects or machinery
parts, machinery, vehicles such as cranes, motorcycles, planes, helicopters and
industrial machines. The plans represent a simple mechanism or a machine
consisting of a set of parts, assembly drawings are called, and it represents a
single element, flat piece. They represent a set of pieces with graphic
indications for placement, and assemble a whole, are called assembly
drawings.
Electrical Drawing
This type of drawing refers to the graphical representation of electrical
installations in industrial, office or house or any architectural structure that
requires electricity. By corresponding symbols represent connections, meter
box, main board, line circuits, switches, sockets, lamps and other outlets. in any
17
case the fundamentals of mechanical drawing is shown in the drawing power
Electronic drawing
It represents the circuits that provide precise performance to various devices
that currently constitute a technological breakthrough as computers, amplifiers,
transmitters, watches, televisions, radios and others.
Drawing geological
The geological picture is used in geography and geology, he was representing
the various layers of the earth using a symbolic and conveys the minerals in
each layer. It is widely used in mining and oil field exploration.
Topographic drawing
The picture we plotted topographic features of a certain tract of land, by
conventionally established signs. It shows natural and man-made accidents,
dimensions or measures, horizontal curves or contours.
Drawing urban
This type of drawing used in the organization of cities: the location of urban
centers, industrial areas, boulevards, streets, avenues, gardens, roads,
playgrounds and more. Are drawn blueprints, plans, assembly drawings and
detail.
Technical design of sanitary facilities
It aims to represent the position of each piece sanitary ware: shower, sink,
toilet, etc. Including the location of internal and external pipes.
Paper
To translate the drawings into a physical medium of paper formats used with
standardized dimensions. The most commonly used are the series A of ISO,
the main sizes are (measured in millimeters):
18
A0 - 841 * 1189
A1 - 594 * 841
A2 - 420 * 594
A3 - 297 * 420
A4 - 210 * 297
A5 - 148 * 210
A6 - 105 * 148
A7 - 74 * 105
A8 - 52 * 74
A9 - 37 * 52
A10 - 26 * 37
Axonometric
The axonometric is a graphical representation system, consisting of geometric elements or volumes represented on a plane by parallel
projection or cylindrical, referred to three orthogonal axes, so that they retain their proportions in each of the three spatial directions: height,
width and length.
Axonometric perspective has two important properties that distinguish it from the perspective conic:
The scale of the represented object does not depend on its distance from the observer (equivalent to the observer was at infinity).
Two parallel lines are also parallel reality in axonometric representation.
Axonometric: proportion of the measures.
The three projecting plane axes are drawn as follows: the reference to the height is usually vertical, and those relating to length and width can
be arranged at any angle. The projecting plane axes to one another 120 ° in isometric perspective, a particular case of axonometric. The cavalier perspective is a type of oblique axonometric which represent the object is positioned with one side parallel to the picture plane (face
of true magnitudes) and projections of its points follow an oblique direction to it. In the military perspective (particular kind of cavalier) the face of real magnitudes is the plant. To make the picture look more like
19
reality, is sometimes applied a reduction factor in measures that are not in the face of real magnitudes or parallel to it.
To use for manual drafting
The axes must be made with straight, bevel, rubber, pencil, ruler,
protractor. Will mark a vertical line, called the vertical axis and then
the other two axes, width and length, with the angle you want. Once
the axes will be drawing only the part with the measurements given
by applying the reduction coefficients. The drawing must preserve
the condition of parallelism and proportionality as regards the three
principal axes. It is also used for previous designs called "freehand"
to see if you can really develop the piece, space, place or object to
be projected. This mode is used for pictures with proportional
measures.
History of technical drawing
The history of technical drawing is initiated by the need for graphics or pictures. The first performances we know are the cave paintings in them not only sought to represent the reality around him, animals, stars, the man himself, and so on., But also feelings, like joy of the
dance, or tension the hunts.
Throughout history, this need to communicate through pictures, has evolved, leading on one side to the other artistic design and technical
drawing. While the former attempts to communicate ideas and feelings, based on the suggestions and stimulating the viewer's imagination,
technical drawing, is aimed at the representation of objects as accurately as possible, in the form and dimensions.
Today, we are seeing a convergence between the objectives of artistic
and technical drawing. This results from the use of computers in technical drawing, they yield 3D virtual recreations that although
objects represent the true size and shape, they also carry a heavy load of suggestions for the viewer.
20
First manifestations
The first known demonstration of technical drawing is a construction
drawing that appears carved on the statue of Gudea Sumerian king
who ruled from 2.144 to 2.124 or 2.122 BC, called the architect, and
that is in the Louvre Museum in Paris. In this sculpture, in schematic
form.
The year 1650 a. C. Ahmes papyrus dating. The Egyptian scribe,
wrote in a papyrus of 33 548 cm, an exhibition of geometric content
divided into five parts covering: arithmetic, sternotomy, geometry and
calculus of pyramids. In this papyrus it comes to giving an approximate
value of the number π.
In the year 600 BC C., we find Thales, the Greek philosopher born in
Miletus. He was the founder of Greek philosophy, and is considered
one of the Seven Sages of Greece. He had knowledge in all sciences,
but became famous for his knowledge of astronomy, after predicting
the solar eclipse which occurred on May 28, 585 a. C. He is said to
introduce geometry into Greece, science learned in Egypt. Their
knowledge, helped him to discover important geometric properties.
These left no writings, the knowledge we have of him comes from what
is told in Aristotle's metaphysics.
Born on the island of Samos, Pythagoras was instructed in the
teachings of the early Ionian philosophers, Thales of Miletus,
Anaximander and Anaximenes. He founded a movement for religious,
political and philosophical, known as Pythagoreanism. A school that is
attributed to the study and design of the first three regular polyhedra:
tetrahedron, hexahedron, and octahedron. But perhaps his best-known
contribution in the field of geometry is the hypotenuse theorem, known
as the Pythagorean theorem, which states that "in a triangle, the
square of the hypotenuse equals the sum of the squares of the Hicks ".
In the year 300 BC C., we find Euclid, Greek mathematician. His
21
principal work Elements of Geometry, is a comprehensive treatise on
mathematics in 13 volumes on subjects such as plane geometry,
incommensurable magnitudes and geometry of space (see Euclidean
geometry. Probably studied in Athens with Plato's disciples. He taught
geometry in Alexandria, and he founded a school of mathematics.
Archimedes (287-212 BC), noted Greek mathematician and inventor,
who wrote important works on plane and space geometry, arithmetic
and mechanics. Born in Syracuse, Sicily, and educated in Alexandria
(Egypt). He invented ways to measure the area of curved figures and
the surface area and volume of solids bounded by curved surfaces.
Showed that the volume of a sphere is two thirds the volume of the
circumscribed cylinder. It also developed a method to calculate an
approximation of the value of pi (p), the ratio between the diameter
and circumference of a circle, and stated that this issue was on March
10/70 and March 10/71.
Apollonius of Perga, Greek mathematician, called "the Great
Geometer ', who lived during the last years of the third and early
second century C. He was born in Perga, Pamphylia (Turkey). His
greatest contribution to geometry was the study of conic curves, which
reflected in his Treatise on conic sections, which originally consisted of
eight books.
dihedral system The dihedral system is a method of geometrical representation of the
elements of three-dimensional space on a plane, ie, reducing the
three-dimensional space to two dimensions of the plane, using an
orthogonal projection onto two perpendicular intersecting planes. To
generate the dihedral view, one of the folds flat on the second.
Is a graphical method of representation is to obtain the image of an
object (in plan and elevation) through the projection beam two planes
perpendicular to major projects, horizontal (PH) and vertical (PV). The
object is represented by the frontal view (projection in the vertical
plane) and top view (projection in the horizontal plane), or you can
22
represent your side view and auxiliary view.
If we disregard land line, is called direct dihedral system.
Projecting flat major
The two planes are the main projecting Horizontal and Vertical. Their
intersection is called a land line.
Horizontal Plane (PH) contains the horizontal projection or plant. It is
divided by the land line (TL) in the horizontal plane posterior (back)
and Horizontal Plane Previous (front).
Vertical Plane (VP) contains the vertical projection or elevation. It is
divided by the Earth Line: Superior Vertical Plane (above) and lower
vertical plane (bottom).
The three main orthogonal projections: front, top and side (elevation,
plan and profile).
Usually only used planes PH and PV, which cut at the soil line (LT)
giving rise to a subdivision of space into four dihedral angles or
quadrants.
It is also used as auxiliary plane, called:
Plano Profile (PP) contains the lateral left (or right).
plane bisecting
The two planes bisectors are those that divide the quadrants into two
octants of 45 ° each. The first bisector is the first and third quadrant
and the second bisector in the second and fourth quadrant.
To represent in two dimensions (on paper) the major sights in the
dihedral system, it makes a depression, which is rotated, bat, or abate
a main plane so that the horizontal plane (PH) overlaps the Vertical
Plane (PV).
23
graphic projection
The projection graph is a drawing technique used to represent an object on a surface. The figure is obtained using auxiliary lines projecting that, starting from a point called the focus, reflect that object in a plane, like a
shadow.
The main elements of the projection are, as shown in the figures, the point of view or focus projection (V), the point to be projected (A), the
projected point (A ') projecting line (VAA') and the plane that is projected, which has different names like projection plane, picture plane or image
plane ().
central projection
When all the projecting lines pass through one point, he speaks of
central projection or conical projection, this is the case, for example, in
the shadow of an object on a surface when illuminated by a lamp
(point source).
Is adopted in conical representation system, or simply conical
perspective.
A variant of this system of representation is the stereographic
projection used for the flat representation of the surface of a sphere,
which is obtained by projecting all points of the sphere from one of
them on the plane tangent at the point diametrically opposite, or on a
plane parallel to this, drawn through the center of the sphere.
central projection
When all the projecting lines pass through one point, he speaks of
central projection or conical projection, this is the case, for example, in
the shadow of an object on a surface when illuminated by a lamp
(point source).
Is adopted in conical representation system, or simply conical
24
perspective.
A variant of this system of representation is the stereographic
projection used for the flat representation of the surface of a sphere,
which is obtained by projecting all points of the sphere from one of
them on the plane tangent at the point diametrically opposite, or on a
plane parallel to this, drawn through the center of the sphere.
parallel projection
When projecting lines are parallel, as the previous object illuminated
by sunlight-he speaks of parallel projection or cylindrical projection. A
special case of central projection, where the projecting beam focus
distance would be infinite.
The dihedral system
Is the case of dihedral system, which also marks the projecting lines
are perpendicular (orthogonal) to the plane of projection. In this
system, unlike others, do not get a volumetric representation of the
object in perspective, but its elevation, plan and profile. From these
views, you can get a three dimensional representation of the object in
axonometric system, whose lines can be either orthogonal projecting
and oblique, with the [[cavalier perspective].
The outline drawing
A variant of the dihedral, is that, in practice, can not be described
adequately with the systems mentioned above. They are widely used
in architecture, engineering, surveying, etc..
Plans The drawings are drawings that represent the views of an object from
different positions. We have floor plans (as viewed from above),
elevation plans (ESP) or front (arg) (front view), flat profile (ESP) or
Views (arg) (side view), it's actually like having a cube, desplegáramos
and all there on that side is represented in a plane. We detail drawings
25
(they are on a larger scale to better appreciate the details), section
planes (esp or Court (arg) (that face is how we would give him a break
if imaginary) In addition to construction site plans have (esp)
implantation (arg) (simply a street where anger indicates where the
work)
Plant Stake (arg) Distribution (esp)
This type of plan shows the building as seen from above if it is cut at 1
meter from the floor level generally (this level can vary depending on
the need to show details of the project that are above this level). They
are close-ups of a play and quickly as possible to understand the work
in broad strokes. Show the position of walls, foundations, setting out
axes, levels, others.
First example
Here's an example. We will model a very simple house and make your
plant (a plant is not complete but will stake out a first approximation)
File: Sequence corte.jpg
1 - shows the house
2 - identify the elements that appear on the ground
3 - are shown in red in line (imaginary) where the court and cut each
element (wall, door, windows)
4 - shows the house is cut
5 - shows the resulting plane
Here we report the same plane, the larger
26
File: First planta.jpg
In terms of rethinking not use colors, red only used in the image above
to show the cut. On a stakeout what is cut and the remaining
"background" differs with the thickness of line, which is above (closer
to the observer is) and was drawn with thicker lines, what this below or
is less important it drawn with thinner lines.
Things to take into account this close:
-The design of the windows: In the cut glass windows and the frame
(which are drawn with a thick line), while further away you can see the
chest (the piece of wall that is below).
The door: The door is always open draw. And it also draws an
imaginary line that shows the path of the door opening. This line is
imaginary and unimportant, so the draw is finite. The importance of
this part of the picture is telling us to side to open the door: Inside or
outside, left or right and if during its course affects elements located on
the premises such as a toilet.
Scale
On one level all the measures are proportional, ie if the house is going
to build two walls and one is twice larger than the other, the plane will
be a twice as long than the other. If they are both equal, measured at
the same.
We can say that all elements maintain a ratio to each other, and this
proportion will have a real home. This ratio between the drawing and
scale we call reality.
The plans for construction staking commonly used scales of 1:50 or
1:100.
27
1:50 we pronounce "one in fifty" and means that any measure of the
plane is 50 times smaller than reality.
1:100 (one hundred) means that everything is 100 times smaller, as
measured at the 1 cm (centimeter) in reality measured 1m (meter)
Many people do not feel comfortable when dealing with numbers and
have difficulty understanding the meaning of the scale, but interpreting
a scale does not necessarily require translation to understand metric
units, is simpler: if a plane indicates that the scale is 1: 50 placed on it,
for example, a shoe, and the distance that the shoe cover on the plane
means that to cover that distance in real need shoes threading 50 as
used.
Dimensions
As we have seen could take all of the work by measuring with a ruler
or a scaler drawing. However the staking plan has a graphic element
(the dimension), which marks a measure summarizing the construction
work and avoiding possible confusion when you need a measurement.
There are three types of dimensions, the three have the same end
point measurements of objects in the plane.
Dimensions partial =
They measure a distance in the plane: the distance between walls to
know the extent of local column wheelbase, the distance between the
edge of a carpenter and the closer, and so on.
Are drawn as a line crossed by smaller ones on the ends that indicate
where to where you are taking the measure.
28
File: Cota parcial.png
Then add all partial dimensions to our example. (Attention, we have
turned the plane to let better on the screen of your monitor.)
File: Plant Stake heights parciales.jpg
This plan gives us the following information.
-The location inside the building measuring 4.57 m long and 2.88 m
wide.
The local-width is bounded in the front and rear so that work is
confirmed that both walls are kept parallel.
-The thickness of the walls completed is 17 cm (including plaster)
-The door width is 90cm. This width includes the door frame.
-The distance of the door is bounded on both sides to verify on site
that is well located. It is also one of the inner side bounded by what is
most important to its location on the inside than the outside. The door
is at 1.69 m from the inside edge of the wall of the left (left to whoever
enters the house) and 29 cm from the inside edge of the right wall.
-The small window (the bottom) measures 65cm wide, 68cm is at the
outer edge of the wall.
The window size, 1.60 m wide and is 43cm from the edge of the small
window. Here, unlike the door he said no to both sides because the
windows are interested in a little closer or a little farther from the front.
Are bounded on the outside because it matters most as you'll see from
the outside than going to be located inside (in this case).
29
-In a plant does not indicate the height of windows and doors and their
level of placement.
accumulated levels
These levels indicate more cumbersome measures to verify at work but of great importance. The accumulated levels indicate the position of each
element to build into the ground. The first thing that indicated for this are the axes of staking. The axes are staking two imaginary lines that are located on the ground. all dimensions are accumulated literature are
distances between a point and mark the elevation axis.
The axes were staking a line drawn with very thick and with a stroke of "dash dot". In addition it is recognized because it is indicated with two
crossed flags at each end.
In our example we place the axis of rethinking this. One parallel to the longer wall through the door. Another pass through the window. The two
axes are always perpendicular to rethink itself, when the walls of the house form a right angle.
Then mark the axes of stake in our example.
The accumulated levels are drawn as arrows with the number indicating
the distance (magnitude) is always expressed in meters as follows 2.53 (2 meters, 53 centimeters). are also accompanied by a letter indicating from
which axis is to be taken away.
Then mark the accumulated levels
30
CONCLUCION
THIS WORK IS PRIMARILY FOR PRACTICAL METHODS OF
DRAWING METHOD TECHNICAL DRAWING PRACTICAL
INTERPRETATION The drawings are drawings That Represent the
views of an object from Different positions. We have floor plans (as
viewed from above), elevation plans (ESP) or front (arg) (front view),
flat profile (ESP) or Views (arg) (side view), it's Actually like Having a
cube, desplegáramos and All There on That side is a plane
represented there. We detail drawings (they are on a larger scale to
better Appreciate the details), section plans (or esp Court (arg) (that
face is how we give him a break Would if imaginary) In Addition to
construction site Plans have (esp) implantation (arg) (Simply a street
Indicates anger WHERE Where the work)
31
BIBLIOGRAFIA
DRAWING BOOK OF PLANS TECHNICAL AND INTERPRETATION
AUTHOR: GARCIA WILLIAN
YEAR: UPDATED EVERY YEAR
BOOK PRACTICE METHOD FOR THE PREPARATION OF
CONSTRUCTION PREUSPUESTOS
AUTHOR: GARCIA WILLIAN
YEAR: UPDATED EVERY YEAR
Technical Drawing Practical Method
AUTHOR: GARCIA WILLIAN
YEAR: UPDATED EVERY YEAR