This video will help you to understand the difference between different types of lines used in technical drawing. Type b lines are dimension lines and are used for dimensioning.
Engineering Drawing Wikipedia
Drawing Views Multiview Projection.
. Figure 3-7 These are common line types used in drawings to describe objects hidden conditions and important relationships between components and space. 3H 03mm for the thinnest visible ie. In this followup to my first line types video I talk about a few more types of lines used in technical drawings.
B type Continuous THIN. 9 Line styles and types Line styles are used to graphically represent physical objects and each has its own meaning these include the following. C type Continuous THIN Freehand.
Thick dark medium and thin light. All other lines contrast with the visible lines by having either a thinner weight andor a combination of dashes. The break line represents a long piece which is shortened.
H type Chain THIN and THICK. Visible lines - are continuous lines used to draw edges directly visible from a particular angle. Following are the different types of lines used in engineering drawing.
LEADER LINE Medium line with arrowhead to show notes or label for size or special information about a feature. Object lines are solid heavy lines 7 mm to 9 mm. F type Dashes THIN.
It is used to. Perpendicular lines or projectorsare drawn from all points on the edges or contours of the object to the plane of projection. H 09mm strongest lines ie.
Up to 24 cash back Fold Lines. Type a lines show the outline of the feature of an object. PHANTOM LINE Long line followed by two short dashes use to show alternate position of a moving part.
They are drawn as solid lines with a thickheavy weight. Up to 24 cash back Text on Technical Drawings Standard engineering lettering uses single stroke Gothic upper case letters. These lines define the shape of the object portrayed.
Spring 2006 MEC1000 Technical Drawing - D. Here is another version. E type Dashes THICK.
Line weight is the thickness of the line. You should make the line so that end of the line ends with the long dash on both ends. Outlines solid look hatching.
Construction lines and guide lines are very light easily erased lines used to block in the main layout. 4H mark-up lines which are not meant to show. The line weights ought to be in the ratio three21.
D type Continuous THIN Zig-Zag. 2H 05mm general inc. SECTION LINE Medium lines drawn at 45 degrees use to show interior view of solid areas of cutting plane line.
Lead strengths to use for different elements of the drawing. Thick lines are generally twice as wide as thin lines usually V32 inch or about 08 mm wide. Hidden lines- are short-dashed lines that may be used to represent edges that are not.
There are then different types of lines among the main ones are. Following are the different types of lines used in engineering drawing. Shown below is the projection of an object onto the frontal plane.
G type Chain Thin. Types of Lines in Technical Drawing Object Line. Start studying 12 types of lines used in technical drawing.
Drawings for interior designprojects generally use three line widths. A B C D E F G H I J K L M N O P Q R S. Isometric Projection A means of producing an accurate drawing of a 3- dimensional object using a combination of 30o lines for lines which are horizontal in.
A type Continuos Thick B type Continuous THIN C type Continuous THIN Freehand D type Continuous THIN Zig-Zag E type Dashes THICK F type Dashes THIN G type Chain Thin H type Chain THIN and THICK J type Chain. A center line is a 3 mm to 5 mm line that alternates between short and long dashes. Fold Lines are lines used to represent an object flattened out into a 2D shape the bend lines are represented by long line and two short dashed line and then a long line again as shown on the left.
OBJECT OR visible LINES thick dark line use to present outline of object clearly shows edges and surfaces. The projection of an object. Within the branch of the technical drawing appears the line a fundamental characteristic of it important to illustrate the different objects.
Dimension lines dashed lines. Visible lines are the edges or outlines of an object. A hidden line.
Resources are provided under each of the following four general topics of study with accompanying sub-topics as recommended. A PFD normally comprise of but not limited to i all the process lines utilities and operating conditions essential for material balance and heat and material balance ii utility flow lines and their types which are used continuously within the battery limits iii equipment diagrams to be arranged according to process flow designation and equipment number iv. Every practised draughtsman will have their own preferences and advice re.
A type Continuos Thick. These recommended free e-resources are specifically aligned with the Caribbean Secondary Education Certificate CSEC curriculum framework as suggested in the CSEC Technical Drawing Syllabus. The vital to successful drafting is to have actually a an excellent technical expertise of these miscellaneous line features to know where and when to apply them in technological drawing.
Lines used in the technical drawing.
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