Download presentation

1
**Design & Drafting Technology Unit 4**

Terms & Definitions Design & Drafting Technology Unit 4

2
Arc Any portion of the circumference of a circle

3
Diameter The distance across a circle passing through its center point

4
Radius The distance from the center point of a circle to the outside circumference

5
Ellipse A foreshortened circle having a major axis and a minor axis

6
Focus (Foci) Point(s) at which lines come toward each other or move away from each other

7
**Freehand Technical Sketching**

Making a drawing without the use of instruments, yet with care taken to obtain the correct line widths

8
Major Axis The axis passing through the foci of an ellipse

9
Minor Axis The chord of an ellipse passing though the center perpendicular to the major axis

10
Isometric Sketch A sketch based on the object being drawn on three axes spaced 120 apart

11
Oblique Sketch A sketch that shows the face of the object parallel with the plane of projection

12
Cabinet Sketch A sketch that shows only the face or the front of an object

13
Proportioning Drawing parts of an object in the same size relationship as the object itself

Similar presentations

OK

Lecture 5 Monday, 29 June 2015 1 ENGINEERING GRAPHICS 1E7 Lecture 5: Isometric Projections.

Lecture 5 Monday, 29 June 2015 1 ENGINEERING GRAPHICS 1E7 Lecture 5: Isometric Projections.

© 2018 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google