developments in engineering drawing is the simplest topic bt with this video it seems as if it is a big deal to come up with the development of a truncated cone surface
Thank for your comment! I agree it is quite easy to develop a cone. However, it may get challenging for some students to understand the development of a sectioned cone. I am happy to know that you found it easy. My intention was not to make it look difficult, but some students may wish to understand every step at their pace. With practice, one can be faster in engineering drawing. Thanks for your interest!
Thanks for asking. Sorry, I did not get the question clearly. The section is currently making 45 degree with the base of the cone. The height of the cone is given in the question as 65 mm. So you draw the axis of the cone and measure 65 mm from the base to fix point O. Please also watch (different but similar problem): th-cam.com/video/P9cSOUKg6xw/w-d-xo.html 👍✔
Dude!! If you simply take chord length from the orthographic view and mark it on your development, the notion of development being in TRUE LENGTH is lost. Just visualise, summimg up all your small interval lengths on the development will NOT give 2πr. It will be less than that. However, if a cone is literally cut open, the unwound circular curve will give the length 2πr. Hope you get it!!
Dear Onkar, you are perfectly right. The chord method will not give the true length of curved edge of the developed cone. The idea was to find the developed surface without any calculation. Dividing the top view circle into 12 parts was aimed at reducing the error we may introduce. As you increase the number of divisions in the top view, you are going to reduce the error. Imagine, dividing the arc into very large number of chords will bring the error to very small (acceptable) value. For exact solution, we will need to calculate the angle that the developed cone surface will have. This is give as angle, theta = 360 (cone base radius/cone slant length). Cone slant length is the length of the generator of the cone. Angle Theta is the angle the fully developed cone will make at the apex. This is fine if you are developing a complete cone which is not sectioned any where. Now, for sectioning problem, you need to divide and re-divide this angle Theta until you have divided this angle into 8 or 12 parts (as the case may be). You can draw the generators at those angles and follow the remaining procedure. Thanks for bringing a very valid point!👍
The heights as measured aren’t the true heights radially, they by rights should be measured at each segment. Squaring them off to one side doesn’t accurately measure them pick the lengths up off the points of intersection. Not taking away from the video being helpful because I knew I’d missed a process in developing the cone, but as a fabricator I’d probably end up swearing a bit because of gaps in fitup. Wire comes by the kilo though so that’ll fix it. Don’t call it canyoncraft without reason.
Dear Matt, Thanks for the comments. I am not sure I have understood your questions correctly. I would appreciate if you could ask the question with mention of the time in the video. Thanks. Just trying to understand your first question. My answer is that the length of each generator (sectioned) should be measured at the side most generator only then we can get true length.
Thanks for your comment. There is a setting at the right lower side of TH-cam video where you can set the video speed. This particular video has no sound so that make it easier to follow without the annoying high pitch sound when you increase the speed of the video.
Thank you so much Mr Tutor💯💯
You are genius sir tomorrow is my exam you help me a lot plzz reply sir
You are welcome! How did the exam go?
This is very useful for my technical graphics exam tomorrow,thank you
Thanks
Jamie how was your exam
Thank you very much this really helped me a lot.🤭🤭😀😀😀
My teacher sent me your link and boi I happy because I can get more learning in this times.
👍✔Great
very good video. what prupouse does the line through the cone have though?
could you clarify your question, please.
I have exams in a few and now I'm going to pass thanks so much
Best of luck!👍
I also have exams today and I will definitely pass now
Kindly write the questions in description so that it will be easier watching both answer and question.
done✔
developments in engineering drawing is the simplest topic bt with this video it seems as if it is a big deal to come up with the development of a truncated cone surface
Thank for your comment! I agree it is quite easy to develop a cone. However, it may get challenging for some students to understand the development of a sectioned cone. I am happy to know that you found it easy. My intention was not to make it look difficult, but some students may wish to understand every step at their pace. With practice, one can be faster in engineering drawing. Thanks for your interest!
Thank you very much. This video has also been referenced to my channel.
👍 Greatly appreciate
Thanks for giving useful tips
👍
Good teacher
Thank u so much sir i prepare the exam
👍
very useful channel
Thanks!👍
Without explanation just drawing what we understand sir it really huge task
Sorry, old videos do not have sound. But recent ones are all with sound. I will make this too with sound when I get time.👍
If you were to add sections to make a 45 degree, what would need to change between each segment? And how do you determine the height of the O°mark?
Thanks for asking. Sorry, I did not get the question clearly. The section is currently making 45 degree with the base of the cone. The height of the cone is given in the question as 65 mm. So you draw the axis of the cone and measure 65 mm from the base to fix point O. Please also watch (different but similar problem): th-cam.com/video/P9cSOUKg6xw/w-d-xo.html
👍✔
Mantap pak
Terima kasih!
What is the name of the scale u using
Rolling ruler.
Please can you explain the drawing
th-cam.com/video/P9cSOUKg6xw/w-d-xo.html
Thank u sir u clarify me neatly thank sir very much
Always welcome👍
What about angle?
th-cam.com/video/P9cSOUKg6xw/w-d-xo.html
you could follow the above link.👍
thank you so much
👍
What subject is this?? And what semester?
The title of this channel says that. 👍
Without voice??
sorry, old videos are without voice.
Dude!! If you simply take chord length from the orthographic view and mark it on your development, the notion of development being in TRUE LENGTH is lost. Just visualise, summimg up all your small interval lengths on the development will NOT give 2πr. It will be less than that. However, if a cone is literally cut open, the unwound circular curve will give the length 2πr. Hope you get it!!
Dear Onkar, you are perfectly right. The chord method will not give the true length of curved edge of the developed cone. The idea was to find the developed surface without any calculation. Dividing the top view circle into 12 parts was aimed at reducing the error we may introduce. As you increase the number of divisions in the top view, you are going to reduce the error. Imagine, dividing the arc into very large number of chords will bring the error to very small (acceptable) value.
For exact solution, we will need to calculate the angle that the developed cone surface will have. This is give as angle, theta = 360 (cone base radius/cone slant length). Cone slant length is the length of the generator of the cone. Angle Theta is the angle the fully developed cone will make at the apex. This is fine if you are developing a complete cone which is not sectioned any where.
Now, for sectioning problem, you need to divide and re-divide this angle Theta until you have divided this angle into 8 or 12 parts (as the case may be). You can draw the generators at those angles and follow the remaining procedure.
Thanks for bringing a very valid point!👍
excellent work
Thanks!👍
Like this men
The heights as measured aren’t the true heights radially, they by rights should be measured at each segment. Squaring them off to one side doesn’t accurately measure them pick the lengths up off the points of intersection. Not taking away from the video being helpful because I knew I’d missed a process in developing the cone, but as a fabricator I’d probably end up swearing a bit because of gaps in fitup. Wire comes by the kilo though so that’ll fix it. Don’t call it canyoncraft without reason.
Dear Matt, Thanks for the comments. I am not sure I have understood your questions correctly. I would appreciate if you could ask the question with mention of the time in the video. Thanks.
Just trying to understand your first question. My answer is that the length of each generator (sectioned) should be measured at the side most generator only then we can get true length.
Thankyou
👍
Nice sir
Thanks 👍
Wow😮
amazing tnx#1
👍
No sound
sorry, only for newer videos.
Nice;y done, unlike my spelling and FIRST!!!
Thanks!
Watch this in 1.75x
👍
Sir agar video me audio bhi hota to or bhi achha rahta
Thanks! But I will do that for newer videos. ✔
Nice vedio
Thanks!
thanks sir
You are welcome!👍
I don't understand how you did the plan
Baar ooh botum 😂
✔
Why does your video lack volume... personally gained nothing
sorry for old videos.
À
👍
mmm that is bieng too slow
Thanks for your comment. There is a setting at the right lower side of TH-cam video where you can set the video speed. This particular video has no sound so that make it easier to follow without the annoying high pitch sound when you increase the speed of the video.