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Terms & Definitions Design & Drafting Technology Unit 4
Arc Any portion of the circumference of a circle
Diameter The distance across a circle passing through its center point
Radius The distance from the center point of a circle to the outside circumference
Ellipse A foreshortened circle having a major axis and a minor axis
Focus (Foci) Point(s) at which lines come toward each other or move away from each other
Freehand Technical Sketching Making a drawing without the use of instruments, yet with care taken to obtain the correct line widths
Major Axis The axis passing through the foci of an ellipse
Minor Axis The chord of an ellipse passing though the center perpendicular to the major axis
Isometric Sketch A sketch based on the object being drawn on three axes spaced 120 apart
Oblique Sketch A sketch that shows the face of the object parallel with the plane of projection
Cabinet Sketch A sketch that shows only the face or the front of an object
Proportioning Drawing parts of an object in the same size relationship as the object itself
1.Circle Notes A circle is the set of all points in a plane at a given distance from a given point Circles (Part 1)
Drafting – Product Design & Architecture Pictorial Drawings – Isometric, Oblique, & Perspective.
Parts of a Circle Aim: To understand and know the vocabulary for parts of a circle.
C=π d C=2πr r=½d d=rx2 A=πr² The diameter is the longest chord. The ratio of the circumference is always …. π is a Greek letter. π can also.
Terms & Definitions Drafting & Design Technology Unit 2.
ME 101 ENGINEERING GRAPHICS Dr. Oğuzhan YILMAZ (Assist.Prof.) Mechanical Engineering Department Room: 319
Objectives: 1.To find the intercepts of a graph 2.To use symmetry as an aid to graphing 3.To write the equation of a circle and graph it 4.To write equations.
Topic E: Sketching. Purpose: ◦ The main purpose of sketching is to convey ideas. Engineers have to use sketches to brainstorm ideas, as well as, to.
Fundamentals of Engineering Isometric Pictorials and Ellipses GSMST.
Circle Theory. 2x2x x This is the ARC o Centre of Circle The Angle x subtended at the centre of a circle by an arc is twice the size of the angle on the.
Career & Technical Education Drafting – Product Design & Architecture Geometric Construction & Terms.
Holt Algebra Ellipses Write the standard equation for an ellipse. Graph an ellipse, and identify its center, vertices, co-vertices, and foci. Objectives.
Drafting – Product Design & Architecture Orthographic Projection.
H 3-D DRAWINGS CAN BE DRAWN IN NUMEROUS WAYS AS SHOWN BELOW. ALL THESE DRAWINGS MAY BE CALLED 3-DIMENSIONAL DRAWINGS, OR PHOTOGRAPHIC OR PICTORIAL DRAWINGS.
Sketching & Dimensioning. Pictorial Drawings Shows an object like you would see in a photograph Give a three dimensional view of a room or structure Three.
© Dr Simin Nasseri Southern Polytechnic State University 1 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
Line A straight path that goes on forever in both directions; it is named by any two points on the line. ZY ZY or YZ.
Write equations and graph circles in the coordinate plane. Objectives.
GE 121 – Engineering Design Engineering Design GE121 Isometric and Orthographic Sketching Lecture 3A.
Draw six segments that pass through every dot in the figure without taking your pencil off the paper. Session 55.
Lecture 2 Friday, 30 May ENGINEERING GRAPHICS 1E7 Lecture 2: Basic Construction.
Fundamentals of Engineering Isometric Sketching and Coordinate Systems GSMST.
2x2x x This is the ARC o Centre of Circle The Angle x subtended at the centre of a circle by an arc is twice the size of the angle on the circumference.
A chord that goes through the center of a circle diameter.
1.Quiz Review a)Is this polygon convex or concave? How do you know? b)Give three names for the polygon. c)What is happening When you assume? d)Draw an.
TOC 1 Physics 212 and 222 Lenses Properties of Thin Lenses Lens Makers Equation Ray Tracing Equations.
Section 10.1 Circles Notes What is a CIRCLE? A CIRCLE is the set of all points in a plane equidistant from a given point.
Geometry Honors Section 9.1 Segments and Arcs of Circles.
Liceo Scientifico G.Ferraris Taranto Maths course The ellipse Teacher Rosanna Biffi UTILIZZARE SPAZIO PER INSERIRE FOTO/IMMAGINE DI RIFERIMENTO LEZIONE.
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