 Hello friend, myself Sanjay Mutt, Assistant Professor of Mechanical Engineering Department, Paul Chen Institute of Technology, Solapur. Today I am explaining the orthopic projection of a simple object. The learning outcome for this topic is student will be able to draw the orthopic projection of a simple object. So here I am showing the simple object. In the previous video I am showing the same planes are there. So some added features are here. Some holes are here along with the guideway. Some holes I am showing that's why this problem I am selecting. So when you have to see the object from in the direction of arrow x in this direction, how to draw it? Previously I am showing that first you have to calculate the maximum dimensions, what are the maximum dimensions? One 10 to mm and height is 35 mm. So draw the fend line of 120 mm. So in that 60 mm this portion is to be removed here. So from this end you have to travel 60 mm line as a dark one, vertical height is 35 mm, okay. This gap is given as, how much this gap? It is given as 15 mm, okay. Then what is the vertical travel? Vertical you have to travel is 10 mm. Then this is the 10 mm and again it is a 15 mm gap and what is the vertical height? Here 10 mm gap is from the 60 mm to travel 10 mm and up to 20 mm that is total length is 120 mm. This is a portion which is parallel again this 10 mm is 25 mm and this width is 15 mm it is given, okay. So this shaded portion when it is parallel to you in the direction of arrow it will draw as it is front view. Now it is our third video. Now you think of that which portion you have to remove remaining here you have to draw in the front view. Which topic? Which portion is absent here? That is these two circles are there, holes are here. So when you have to see from the front view how to draw it? Yes, these when you have to see from the front view these holes is invisible. They are hidden one, they are invisible one. So how to draw it? The other portions are to be there how to draw it? Draw as a dotted line, okay. So first of all locate their centers, where is the center? From this end it is a 20 mm, this is first center and from this end it is a 45 mm. So locate their centers 20 mm, so draw the center line first, how to draw the center line? Line, dot, line, okay so then you fix the center then you have to draw the hole that hole is invisible one. These are the surfaces, the end surfaces are here and ends surface here. What is the diameter? Diameter is given as 2 holes of diameter 20. If diameter is 20 is there, it is 10 mm. You have to remove 10 mm and 10 mm from both ends. Draw the dotted line from top to end one because it is invisible one. So invisible hole you have to show it. Same thing for this hole, 10 mm you have to travel 10 mm and 10 mm both end. So this is the front view, which topic remaining? This portion is there which is parallel, this portion is there and this surface which one this place as a edge I am explaining. Now you go for a top view. In the top view calculate the maximum dimensions, already the length is given 120 mm and this width is 60 mm. So draw the center line, so center line is very important. From the center line you have to transfer the distances, calculate the measurements, calculate the holes, their edges. So center line is very important. From the center line you have to travel 60-60 mm, 30 mm from the upward and 30 mm from the downward. So first you have to complete the faint of the rectangle. In the rectangle you have to do whatever you have to draw it with. When you see the object from the top view, first of all start with this rectangle, each portion, this one which is parallel to you draw as it is, this portion is to be there. Now these two ends, when you go for this end one, this plane and this plane is parallel, this portion it is imaginary up to here, this corner is imaginary up to here, you get a rectangle, you get the three rectangles, it is a given 15 mm here, 15 mm here. So from here you have to travel 15 mm and from here you have to travel 15 mm and the width is given as 15, from the top view already you have to draw it, only draw the generators. First block, second block and this third one is here, this portion is here. Now which topic is remaining here, again two holes are here, the center line is already here. So locate the center line, so what are the radius, radius up to here and it is parallel to you from the top view, so you get as a circle as it is with the given diameters. So whatever the plane or age is parallel you have to draw it. Now one more line or age is invisible here, which one is invisible, think over that. So just like in the previous one I am explaining regarding this one, this age, which age, this age, which is start to end, this age which is start to end, around the top view it is invisible. So draw, it is a dotted one, it is a front view, same thing for me to go for a side view, draw the respective generators from the top view, front view, rotated generators from the top view, you get as a third angle side view, right hand side view or left hand side view. Thank you.