CH4-2 线面、面面相对位置,relative position, Descriptive Geometry, Engineering drawing 978 -- 24:23 App 线面、面面相对位置关系,画法几何,工程制图,三峡大学李洋波,relative position of line/plane and plane/plane 1366 -- 6:25 App 工程制图基本知识,engineering drawing,instruments and line types 1.4万 26...
1.2 Engineering drawing 1.3 Projection theory 1.4 Orthographic projection 1.5 Drawing standards /Standard code /Drawing sheet /Bolder lines & title block 1.6 Drawing standards /Drawing scales /Line types 1.7 Lettering 1.8 Traditional drawing tools ...
A Drawing types and scales B Types of views used on drawings 2 Design development 10 A Initial design phase B Collaborative development 3 Design solutions 12 A Design objectives B Design calculations MEASUREMENT 4 Horizontal and vertical measurements 14 A Linear dimensions B Level and plumb 5 ...
Engineering drawing: categorizing lines in blueprints An engineering drawing employs various types of lines, including dimension lines, to illustrate both hidden and visible parts of an object. Hidden line Hidden lines, as the name suggests, show the parts of an object that cannot be seen from th...
Engineering drawings often include such features as various types of lines, dimensions, lettered notes, sectional views, and symbols. They may be in the form of carefully planned and checked mechanical drawings, or they may be freehand sketches. Usually a sketch precedes the mechanical drawing. ...
Line styles and types[edit] Standard engineering drawing line types A variety of line styles graphically represent physical objects. Types of lines include the following: ? ? ? ? ? visible – are continuous lines used to depict edges directly visible from a particular angle. hidden – are ...
Different Types of Lines Not every line on an engineering drawing is equal. The different options make it possible to show both visible and hidden edges of a part, centre lines, etc. The most common is a continuous line, also known as a drawing line. This represents the physical boundaries...
lines at various relative positions A straight triangle method of straight line length from projection of straight line Projection, drawing and judgment of points on a straight line (4) projection of 2-4 plane planes Geometric element representation of plane Various position planes: general position ...
ENGINEERINGDRAWING ENGINEERING DRA W I N G CLASS-XI THEORY One Paper 3 Hours7O Marks Unit Marks PLANE GEOMETRY 1.Construction of lines, angles and rectilner figures4 2.Construction of circles, semi-circles and tangents6 3.Construction of ellipse, parabola, involute, cycloid, helix and sine...
Engineering drawings often include such features as various types of lines, dimensions, lettered notes, sectional views, and symbols. They may be in the form of carefully planned and checked mechanical drawings, or they may be freehand sketches. Usually a sketch precedes the mechanical drawing. ...