Skip to main content

Engineering Drawing/ graphic tools

 Engineering Drawing/graphic tools

Drawing is the language of engineers. Thousands (1000) of words cannot describe a part correctly which a single drawing represents accurately. Ideas of engineers are recorded by preparing a drawing, and execution of work is also carried out on basics of drawings. Communication of engineers is done with the help of drawings. Like music, drawing is an universal language of the engineering world.


Drawing instruments are used to prepare drawings easily and accurately. The accuracy of drawings depends on the quality of instruments. Desirable accuracy is only possible with quality instruments. It is therefore necessary to obtain the instruments of superior quality.


DRAWING INSTRUMENTS AND SUPPORTING MATERIAL 

 1. Drawing board. 

2. T-square or Mini drafter.

3. Set-squares - 45° and 30° -60

4. Drawing instrument box having :

  (i) Large size compass with inter-changeable pencil and pen legs. 

  (ii) Large size divider.

  (iii) Small bow pencil.

  (iv) Small bow divider.

  (v) Small bow pen.

  (vi) Lengthening bar.

  (vii) Linking pen 1

5. Protractor

6. Scale.

7. French curves.

8. Drawing paper.

9. Drawing pencils.

10. Rubber eraser.

11. Drawing pins.

12. Sand paper block.

13. Duster.

Labels:

Comments

Post a Comment

Thanks for your comments

Read this Article

Laws of Motion – Class 11 Physics NCERT | Newton’s Three Laws, Formulas & Derivations

🧲 Laws of Motion – Class 11 Physics (NCERT) The Laws of Motion were given by Sir Isaac Newton and are fundamental to understanding force, motion, and mechanics in physics. This chapter from Class 11 NCERT explains how forces affect the motion of objects. 📘 Newton's First Law of Motion (Law of Inertia) Statement: A body remains at rest or in uniform motion in a straight line unless acted upon by an external force. 🔹 This law defines inertia – the natural tendency of objects to resist change in their motion. Inertia depends on mass. More mass → more inertia. 📌 Real-Life Example: You fall forward when a bus suddenly stops. 📘 Newton's Second Law of Motion Statement: The rate of change of momentum of an object is directly proportional to the applied force and takes place in the direction of the force. ✅ Derivation: Momentum, p = mv Rate of change of momentum = d(mv)/dt = m dv/dt = ma (if mass is constant) F = ma 📌 This is t...
Post a Comment
Read more

Space-Time Fabric-what-how-why-science

 Space-Time Fabric: A Complete Overview The concept of space-time fabric originates from Albert Einstein’s General Theory of Relativity (1915). It describes how gravity is not just a force (as Newton thought) but rather the curvature of space and time caused by mass and energy. This explanation transformed our understanding of the universe. Read More Our Solar system Earth vs Mars Is it time travel possible! Space-Time Fabric The Unity of the Universe 1. What is Space-Time? The Four-Dimensional Continuum In classical physics, space and time were seen as separate entities: Space: A three-dimensional framework (length, width, height). Time: A separate, independent dimension that flows uniformly. However, Einstein’s Special Relativity (1905) showed that space and time are deeply linked, forming a four-dimensional continuum called space-time: 1. Three spatial dimensions (X, Y, Z – length, width, height). 2. One time dimension (T – the passage of time). Thus, events in the...
Post a Comment
Read more