Orthographic Projections - Engineering drawing - Technical drawing

Orthographic projection is a method of representing three-dimensional objects in two dimensions.
It is generally used by
Engineers, designers, architects, and technical artists to help a manufacturer understand the specifics of a product that needs to be created commonly use it.
There are 2 types of orthographic projections
(1) First angle method of Projections and
(2) Third angle method of Projections.
What is the difference between the 1st angle and 3rd angle method of Projections?
The difference between the first and third angle projection is in the position of the Top, Front and Side views.
Why we can't use the 2nd and 4th angle projection?

Note: Overlapping projection views creates confusion in the drawing. Therefore, the Second angle method of projection and Fourth angle method of the projection system are not used.
The Third angle is mainly used by the USA and CANADA and Entire EUROPE and Rest of the world use First angle method of projection
Some people also say orthogonal Projections.

Advantages of using orthographic
(1) You can show hidden detail and all connecting parts.
(2) You can show all dimensions necessary for manufacture.
Limitations.
Orthographic drawings do not show depth or realistic views.
A single-view orthographic drawing represents every object as having only two dimensions.
In orthographic projection, there are six possible views of an object, because all objects have six sides - front, top, bottom, rear, right side, and left side.
Typically, an orthographic projection drawing consists of three different views: a front view, a top view, and a side view.
Occasionally, more views are used for clarity.
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#Technicaldrawing #Engineeringdrawing #Orthographic

[@djolee28]

Where is hatching on third view?

[@mozartchopin6163]

In that front view ,what about the half circle ,is it not part of it

[@technicaldrawing]

Yes it is part of FV

[@nicholaskibiwot5188]

Nice duty to everyone

[@transformyourmind5702]

very very Excellent , Thank you very much my dear

[@runbou3485]

អរគុណthank👏

[@retador557]

Thanks you so much

[@RM-xu7mj]

Which angle is this?

[@technicaldrawing]

1st angle

[@RM-xu7mj]

@@technicaldrawing thanks

[@veerathepkeeratipitayanusa8444]

Good

[@alaaisraa9459]

IL YA UNE ARRÊTE visible DANS LA VUE DE DESSUS QUE VOUS NE AVEZ pas REPRÉSENTER ,svp dit pourquoi et aussi dans la même vue pourquoi tu présente les arrêtes visibles de demie cercle avec cette façon

[@technicaldrawing]

En vue de dessus, ce bord chevauchera avec le bord supérieur, nous ne pouvons donc pas afficher de ligne en pointillé et pour la partie circulaire, vous obtiendrez un point extérieur gauche et droit où le bord est créé, mais nous ne pouvons pas voir de la vue de dessus, c'est pourquoi il est en pointillé .

[@alaaisraa9459]

@@technicaldrawing merci pour votre réponse

[@technicaldrawing]

😀

[@piyushpatil0]

Please explain in details

[@EmmanuelTobiloba-h3o]

Lasu engineering students 😂

[@kcelee597]

Real😭💔

[@omunde2611]

Are aaighalya adhich plan karun thevala mg kadhto ka 😤🤬