Here is a list with different line types and their application: If you are a beginner in technical drawing, you will see the stichpunktartigen information on the cases of application of different line types is not very anschlaulich be. Artwork master is a precision scale pattern on stable base material used to produce printed boards within the accuracy established by the master drawings and to establish and control the configuration of the conductor or circuit and marking patterns when these details are not included in the master drawings. A line can be a straight or a curve, they must have a specific starting point and an endpoint, and may be with or without interruption through his. Implied lines And their 5 functions are: 1. A mono detail drawing defines a single part. It is made when operating principles cannot be readily determined from a study of the assembly drawing. Texture 5. I guess like any type of technical drawing you need to have an understanding of what device you’re trying to illustrate, its functions, and the space creators need to understand while assembling. It is a diagram which shows the interconnection of process equipment and the instrumentation used to control the process. If the drawing consists of lighter subjects (e.g. The fourth category of control drawing is the design control drawing. The title block includes (i) title of the drawing, (ii) type of drawing, (iii) drawing number and revision number, (iv) date of the preparation, (v) scale of the drawing, (vi) measurement unit, (vii) name of the organization who prepared the drawing, (viii) name of persons who prepared and approved the drawing, and (ix) any other information which is needed for the drawing identification. Line drawings present themselves in a number of ways including outlines of objects, movement or density of objects and even erasing. It includes (i) logic functions depicted by logic symbols connected by lines which represent signal paths, and (ii) pin numbers, test points, assembly boundaries, and non-logic functions necessary to describe the physical and electrical aspects of the circuit. It includes (i) symbolic representation of each element in the circuit with the symbols interconnected to depict circuit paths, (ii) reference designations, (iii) values for such items as resistors, capacitors, and inductors, and (iv) standard type designations for such items as semiconductor devices, microcircuits, and electron tubes etc. It is also a great option for those who just begun to draw and wish to add very light shades to their drawing. Two or more parts, subordinate assemblies, or combination of these items. It establishes new item identification for the altered item. Each line is used for a definite purpose and it should not be used for anything else. Section Lines. It is prepared as a detail, assembly, or detail assembly drawing. A master drawing provides the complete engineering description of a printed board which includes (i) all dimensions and tolerances necessary to establish board size and shape, mounting hole locations, cutouts, and hole sizes, etc., (ii) un-dimensioned holes located by the conductor pattern and at theoretical grid intersections, (iii) minimum annular rings for conductor patterns surrounding terminal holes to control both hole-to-terminal relationship and registration between layers, (iv) minimum conductor width, spacings, and distance to board edges, (v) registration marks to assure proper alignment of patterns and marking masters on two-sided and multilayer boards, (vi) definition of the cross section details of multilayer boards, (vii) dielectrics thickness between layers of multilayer boards, (viii) raw materials and plating requirements, (ix) etch back allowances, (x) reference designation marking, (xi) maximum rated voltage, (xi) identification and traceability marking requirements, (xii) test points, (xiii) test tab requirements, (xiv) the shape and arrangement of conductor or circuit patterns, hole locations, and printed marking requirements, (xv) critical pattern features which may affect circuit performance, (xvi) views of conductor or circuit patterns and printed marking requirements, (xvii) applicable process specification, and (xviii) process allowances used in preparing the artwork master. The structural drawings guide in detailing, fabricating, and installing parts of the structure. ), (iii) connection of items with wire leads, (iv) material (wire, and sleeving etc.) Section :3: Line types -identification PURPOSE In this section you will be able to recognise and interpret different line types, and the need for variation in thickness used on engineering drawings. They normally represent two dimension view of the object though some drawings also provide three dimensional views. The first type is the functional block diagram. Gesture lines 5. Where an assembly drawing contains detailed requirements for one or more parts used in the assembly, it is a detail assembly drawing. Curved You can make a variety of lines using these tools: 1. Objectives At the end of this section you should be able to: D Identif~"liilre types used on engineering drawings… ), all the drawings are normally prepared in plan and different section views usually to the scale in order to provide complete information of the drawing object. The rules for lines in technical drawings are in the ISO 128-20 described. It is prepared when the required dimensions, tolerances, or other characteristics of items can only be specified in terms of the matched relationship. The first category of control drawing is the procurement control drawing. However, small electrical items mounted by wire connections only may be located either by depiction on the assembly drawing or inclusion in the pertinent wiring list or connection diagram. Through the ispatguru.com website I share my knowledge and experience gained through my association with the steel industry for over 54 years. Zigzag 5. google_ad_height = 250; Technical drawings are also known as ‘engineering drawings’. The computer program assembly drawing contains computer generated load maps of computer programs with multiple components / subprograms. The person who will read drawings have to learn what they mean. This drawing controls one or more of the interfaces such as mechanical, electrical, interconnections, configuration, installation, operational sequence requirements, and system switching etc. Complex technical drawings were made in renaissance times, such as the drawings of Leonardo da Vinci.Modern engineering drawing, with its precise conventions of orthographic projection and scale, arose in France at a time when the Industrial Revolution was in its infancy. The layout drawing is prepared either as (i) a conceptual design layout to present one or more solutions for meeting the basic design parameters and to provide a basis for evaluation and selection of an optimum design approach, (ii) a design approval layout to present sufficient details of the design approach for cost estimating and design approval, (iii) a detailed design layout drawing depicting the final development of the design in sufficient detail to facilitate preparation of detail and assembly drawings, (iv) a geometric study to develop movement of mechanical linkages, clearances, or arrangements. ), (iii) rigging instructions, and (iv) critical structural items to display loading or lifting data. It depicts the course of an electric or electronics circuit, or system of circuits, and the elements thereof using single lines, symbols, and notes. A view of this kind is called a section. and process requirements for connections, (v) reference to associated assembly drawing, connection diagram, interconnection diagram, or wiring harness drawing. It includes (i) physical relationship of circuit elements and their connections, (ii) items identified by reference designations, (iii) clearly identified terminal arrangements, (iv) wires numbered for reference, and (v) wire and termination descriptions. Weight 4. Assembly drawing defines the configuration and contents of the assembly or assemblies depicted thereon. It is common for artists to use various line drawings as a warm-up, oftentimes giving them fresh ideas on how to begin working on a longer study, which may end up a final work of art. They are of following types. google_ad_width = 300; A ‘general layout drawing’ is normally prepared in plan-view. Vertical 2. LINES. This is particularly because 2H contains a very light amount of lead. 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