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problem in technical design.

  • Thread starter Thread starter Apprendista
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I took 18, exam gone: I was a little unfortunate because the piece was not simpler...but by the way: do you know if a tree can be listed in series?
 
Attached the piece, I had to extract what I labeled in red with number 1...

It went as it went, but from today, put in place pencil and paper millimeter, I will still try to learn a real competence in the matter of drawing, a basic competence that will be indispensable to me in the future. to do this I will try to exploit the possibilities offered by the pc and various programs.. .

thanks to all for the support/help you have given me these months: a special thank you certainly goes to sampom that is what has prodigal towards me and that to which more than once I have lost the brackets:tongue:

thanks:wink:
 

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Attached the piece, I had to extract what I labeled in red with number 1...

It went as it went, but from today, put in place pencil and paper millimeter, I will still try to learn a real competence in the matter of drawing, a basic competence that will be indispensable to me in the future. to do this I will try to exploit the possibilities offered by the pc and various programs.. .

thanks to all for the support/help you have given me these months: a special thanks certainly goes to sampom that is the one that has prodigated towards me and that to which more than once I have lost the brackets

Thank you.
All right, it's gone (and sincerely I'm telling you I wouldn't bet on it:wink:) and I'm giving you compliments (but forget the academic kiss:biggrin:).
But in fact, do not do what past (...al fur..) the exam forgets everything. try to deepen as soon as you can.

and forgives if I have not followed you in the direction of arrival but lately I am taken and time I have not had any more. But in the end it went better so, good or bad you arranged that it is very important; the reason for my benevolent incautions was that, bringing you to reason with your head, look with your eyes (and keep them always open in this profession).

There is no need to thank, for me in the end it was a pleasure and a stimulus.. and let's say it all, even nostalgic teenage reminences (you are already older, I had stopped at itis but the arguments were those of the early years).
then you know well that when you can here you always find people available and prepared (and one is worth the other).

But still a prayer:
learn how to take pictures! !
Does it cost you so much to keep the room parallel to the sheet and possibly on fire? . .:biggrin:

greetings
Marco:smile:
 
But still a prayer:
learn how to take pictures! !
Does it cost you so much to keep the room parallel to the sheet and possibly on fire? . .:biggrin:
but above all.. take a damn multifunction that looks like a scanner??? :cool:

Anyway... congratulations on the 18th.
given the degree of preparation with which you left, I would say it is worth a good 28... :tongue:
 
But look at that photo I did it the day of the task to the photocopy! and with a mobile phone that has no good camera at all!

and anyway I went wrong even at the end, because in practice I had taken 17 to the test and the tables dava from 0 to 6 points: I had practically all of them, he was giving a max of 4 points, at least a 3 points had to give me them and took 20.

It is that by browsing the tables he saw some trees listed in series and said that they are not listed in series, I answered him that I had copied it from the book and he began to put it on staff and to say that if I wanted no ring to go home or chirone. I argued that he could also call them, but unless that page had made her do it to others, they had to share it like that...

at the end, he did: "go back next time or have to make me squeeze the meninges for another 2 minutes to try to understand if to put them 18 or 19?(and before me he had put a 19 to a boy who had taken 16 to the test, giving him three points to the tables, and they were at the same level as me), I answered: "I wanted to take away the drawing exam, I would not want to take it behind for too long" and he after this answer, without thinking about 2 times. .

I do not want to criticize anyone, nor judge anyone, but it does not seem right to me even the way of carrying out the test as to some people was given the overall exercise, the 9 to make you understand, and was asked for example to extract the two lids... to others, as in my case, the overall was entirely new: It is true that if one knows how to draw it is able to extract any detail and to quote it properly, but it is also true that to one that gives it to extract of the particular facts to exercise is to say little advantaged. . .

There are, for example, people who took 23 and don't know any more about me, indeed... and even people who took 26-27 and good designers from itis mechanics who are of a whole different level that unfortunately had to settle for a 24 because they happened to him an ostic piece. . .

This is the university: serve luck, cunning, perseverance, commitment and dedication. often a vote is not really descriptive of the real abilities of the person.

I can say, however, that I am quite satisfied, because I have made steps forward and that piece that came out of practice, which was not the most trivial, I was able to represent it well, apart from the fact that I made a mistake in the representation of threaded holes, with the thin line inside the hole instead of outside: inexperience, inadequate attention perhaps.

In the end it went as it went, I know that it is not that 20 or 18 that makes the difference, the difference will be if I can deny this relatively low vote to get a long-term revenge, which should materialize with the acquiring a capacity in the mechanical design worthy of being called such.. .

thank you all again for your contributions and good luck to each of you, in the working field and not only ;-)
 
apart from the fact of making an error in the representation of threaded holes, with the thin line inside the hole instead of outside
aaaaargh :eek:!!
inexperience, inadequate attention perhaps.
no, usual "cecity" and disconnected brain:biggrin:
That's what makes me look like. What's the point? to delimit the edges, edges from the surrounding empty space. inside a hole there is the void, how can you just think of putting on the thin line? besides enclosed between two thick. there ends the material, is the limit of your particular, is a well defined entity and must be properly underlined, beyond there is the barter; There is nothing to study, it is pure and simple logic.. and it is also bad to see, the doubt comes only by throwing an eye (already, always those..).

concerning the standard quotas on machine parts,
It's not that it's "forbidden", it's not a real mistake. But it is good to avoid it and to resort to the parallel to help the work of the speaker to the machines (already, but this to understand it you should know a little how they work and I do not think that for now you have done much about it. and it is true, on the texts is normally reported, but it is also explained if possible not to use it), this to minimize any errors of reading and calculation, especially now for programming cn.
we say you were right (almost) both, but the prof. more (which however is what he should have explained.. Is that the same thing that she holds?

greetings
Mar
 
the thin liinees to represent the thread, but they went external...however it was the same prof...
 
I think you don't have to do all the section, just cool half (like sampom but only half).
the only problem is that in this way the holes are not very clear, and it probably takes the front view. or better the professor could break for the front view, I consider it superfluous and would suffice a quotation made well
 
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Hello, guys, I apologize if I reexhume a 3-year-old post, but it was for me the only help I had from searching the internet for some support for this exam. My situation is like that of apprentice, only that to me is the last examination (among other things it is an integration of 3 cfu on another examination), and I do not particularly care (you do not offend :p) as my course is electric and not mechanical. After reading all 42 pages of messages, I was unable to fill my gaps. I would like to ask someone that we have some free time, if he can try to do me, (even in sketch) the extraction of the detail of the numbered pieces, from the totals that you will find attached. as to pass the exam I should carry as elaborate, these particular extracts.
the exam is set for Monday 23, and if I can't pass it slip the graduation examination session from October to December (with completed thesis). I would lose only 2 months of work.
I thank in advance both those who feel like helping me, and those who don't.
compliments for the site/forum.

cordially

klud
 

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Hello, guys, I apologize if I reexhume a 3-year-old post, but it was for me the only help I had from searching the internet for some support for this exam. My situation is like that of apprentice, only that to me is the last examination (among other things it is an integration of 3 cfu on another examination), and I do not particularly care (you do not offend :p) as my course is electric and not mechanical. After reading all 42 pages of messages, I was unable to fill my gaps. I would like to ask someone that we have some free time, if he can try to do me, (even in sketch) the extraction of the detail of the numbered pieces, from the totals that you will find attached. as to pass the exam I should carry as elaborate, these particular extracts.
the exam is set for Monday 23, and if I can't pass it slip the graduation examination session from October to December (with completed thesis). I would lose only 2 months of work.
I thank in advance both those who feel like helping me, and those who don't.
compliments for the site/forum.

cordially

klud
 
I don't understand, should we do your exam? if you have read all the ascussion you will have noticed that it is recommended, correct, directs to the correct solution, but you do not do the job instead of the applicant.
also in the 3rd post is written as follows:
"being a solid revolution would suffice a section along a diametrical plane... I recommend not to forget the rotation axis (it was always indicated for the trees and all these types of solids).
the problem is that here there are also all those pins on a face and so you also need a side view that shows them (I recommend not to forget the circumference on which the holes lie and indicates with what angle they are spaced). the fact that they are passing you see it in the section before.
"

As you of all the drawings see only one view, unless you forget to attach others, it is evident that it is cylindrical pieces, otherwise you would not have a way to obtain the third dimension. unique incognita are the fixing holes
so all you have to do and copy what you see without the surrounding geometries considering that the tilt change of the dash indicates two different pieces.
then what exactly would you need? only geometry, construction quotas, or just dimensions, tolerances and roughness?

the pieces to draw are 23 in total; feasible in 5 days for those who design it chews and obviously not by hand, too many for those who have no idea what and how it should do.

Ultimately try to understand what you have to do and start, then you willingly give yourself a hand
 
I should do the extraction of the detail in the minimum number of views and sections. from what I understand most of the pieces are symmetrical axial, therefore only one view and one section should be enough. my problem is, that having not done other mechanical studies, I cannot interpret the particular and therefore consequently extract it and reproduce it in sight or sections. I don't have to do all the drawings, but 1 or 2 details per drawing (by hand). I was wondering if anyone could give me any indication by doing a sketch, just to realize me. Thank you for the massive answer.
radio: I introduced myself, you have to forgive me =d
 
It is not about mechanical studies or something, but about being able to make projections.
the sections you already have; to do the other view and to understand the concept you take a cylindrical object (a glass, a bottle cap) and look at it perpendicularly to the axis, this is your section. Turn 90° and you have the view you have to get. is nothing difficult, define a common center and plot of the construction lines corresponding to the edges of the drawings section of the tangent circles to these lines. search on google "orthogonal projections of a cylinder"
 

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