MassiVonWeizen
Guest
the design is inguardable and quoted terrible. But now I do not dare to stretch out in explanations. that the hole is passing is obvious from the fact that the screw is inserted on that side and cannot be screwed on both bodies
MassiVonWeizen
Guest
so much to say there are so many constructive quotas and the reinforcement handkerchiefs do not share with the inclination in percentage because they are parts built generally by oxytaglio or however without need of precision and who has to obtain it is not sure to make the calculations of the inclination
giordixasd
Guest
Okay thank you so much so on the reinforcement handkerchiefs do not have inclination tolerances? What are the worst mistakes?
MassiVonWeizen
Guest
I'm with my phone so it's a problem to be exhaustive. there are plenty of quotas and technical drawing standards (disposition quotas, texts, hidden lines, axes etc...).
and reinforcements are not a question of tolerances, but of quotation. I don't know what class you frequent but there are big shortcomings
and reinforcements are not a question of tolerances, but of quotation. I don't know what class you frequent but there are big shortcomings
giordixasd
Guest
thank you so much again .my is a basic course of mechanical design from 6 credits, so in lesson we did not have way to deepen many topics cmq as at the examination we have little time the prof said that the important is to do well the design and put only the main quotas with some tolerance and roughness , regarding the hidden edges said that it is not necessary to represent them with dotted line just to make the view in section
MassiVonWeizen
Guest
Then I think there is little to consider. It doesn't matter, let's forget that other one you have to give us an account of what you have studied, understand what the professor means by important, what would be hypothetically the application of the drawing,
(constructive, installation, design layout)
I have exaggerated with hypothetical nformations, but the speech is that or corrects everything as it must be done, and the design is bad, or nothing could be corrected or not. the streets are a land of no one
(constructive, installation, design layout)
I have exaggerated with hypothetical nformations, but the speech is that or corrects everything as it must be done, and the design is bad, or nothing could be corrected or not. the streets are a land of no one
meccanicamg
Guest
that the screws were screwed from above and therefore the bracket has the holes passing it was immediately understood.
the design is fearlessly incomplete and does not even follow the iso norms for quotation graphics, arrows and other.
Everything is missing to build it.
I'd say if we're doing this at university, it's better to do the exam. I don't say that everyone must be mechanically lost to continue. . .. but among incapable teachers and students who apply little if they see some beautiful ones.
the design is fearlessly incomplete and does not even follow the iso norms for quotation graphics, arrows and other.
Everything is missing to build it.
I'd say if we're doing this at university, it's better to do the exam. I don't say that everyone must be mechanically lost to continue. . .. but among incapable teachers and students who apply little if they see some beautiful ones.
giordixasd
Guest
among incapable teachers and students who apply little if they see beautiful ones.[/QUOTE]I assure you that on my side there is so much desire to improve and my profes are more competent than you, so be careful with words.
volaff
Guest
I assure you that on my side there is so much desire to improve and my profes are more competent than you, so be careful with words.[/QUOTE]Mechanicalmg is a master of this forum that pays to many teachers.
if they are so competent go to reception from them so we are all more serene
giordixasd
Guest
mechanicalmg may also be the god of design but if it starts to offend people who do not know then it is an arrogant person . Now I close this is my last message I write on this forum , I hope to find help elsewhere, I am sorry but respect is first of all
volaff
Guest
I can assure you that his was not an offense, but only a sad reality: today teachers were anchored to 30 years ago; if they fail to convey the basic notions of the design (which are also done in the higher ones) they changed mestiero: It makes no sense to respect a program running and then students don't understand a bat.
giordixasd
Guest
I apologize if I got angry, but if he has the power to hire professors then why does he continue to hire professors who are not capable?
volaff
Guest
Huh? They are old didactically. . .
MassiVonWeizen
Guest
We start from this phrase that I would tend to desumerate as a leading axis of the exercise.
given as a precondition that you should give indications not to the carpentry department, but first to the machine tool department and then to the assembly you must indicate which surfaces are to be worked (all and not only some) that are indicated with the degree of roughness and, if they do not fall into the general ones, with a tolerance of form and/or dimensional.
You also need to indicate the necessary steps to correctly mount and verify its functionality.
all this respecting, as you have already been told, the regulations of the drawing that surely in the chirone are explained and you must have explained also the professor
meccanicamg
Guest
I repeat why it is not clear:
- the natural path to mechanical engineering is coming from mechanical expert. for many reasons there are also those who come from the classic and have no technical base
- starting from the previous state of fact, books and teachers, assume that you know all the basics, in your case you should know 3 technical drawing volumes, complete with rules and explanations of representations and rules and you should do tens and dozens of hand drawings, with teams and pencils etc. etc.
So, you can also bang, but the base doesn't have it if you have these problems. in my time the teacher said to a group of boys coming from the classic: buy high school books and study on your own, then you can figure out what I'm explaining in class.
Unfortunately because we are at school, because so many beautiful dances... you can still teach a cnr 10011 that no longer exists for about ten years or norms for gears buried by a twenty-year period.
It is a pity that, on the practical side, more detailed knowledge is needed and adheres to the rules in force.
and then there are also gurus with 50 years of experience....but if they plan with the norms of 30 years ago....that then the reducers break and the lawyers work.
So... see what you want to see about what's around you
- the natural path to mechanical engineering is coming from mechanical expert. for many reasons there are also those who come from the classic and have no technical base
- starting from the previous state of fact, books and teachers, assume that you know all the basics, in your case you should know 3 technical drawing volumes, complete with rules and explanations of representations and rules and you should do tens and dozens of hand drawings, with teams and pencils etc. etc.
So, you can also bang, but the base doesn't have it if you have these problems. in my time the teacher said to a group of boys coming from the classic: buy high school books and study on your own, then you can figure out what I'm explaining in class.
Unfortunately because we are at school, because so many beautiful dances... you can still teach a cnr 10011 that no longer exists for about ten years or norms for gears buried by a twenty-year period.
It is a pity that, on the practical side, more detailed knowledge is needed and adheres to the rules in force.
and then there are also gurus with 50 years of experience....but if they plan with the norms of 30 years ago....that then the reducers break and the lawyers work.
So... see what you want to see about what's around you
meccanicamg
Guest
going to the then, let's see what there is to do:
- First of all, a nice cartilage and a square in accordance with the sheet. already here are defined scales, materials, weights, general tolerances of form and position according to uni en iso 22768, European or American projection, general bevel, thermal treatments possible etc.
- thickness suitable according to standard to represent edges and other lines
- draw the main view of the piece and its "rightly necessary" views plus a set of sections and/or views in detail
- then we go to quota the mechanical processes of removal of truciole and some indication on the casting crude (or electro-welded steel), we indicate the signs of roughness, tolerances shape and size
* It is strongly indicated to make views with partial sections on site
* it is not recommended to use the representation of edges not in sight dotted because they weigh the design, even if they raise many doubts on the very complicated pieces
* the handkerchiefs and ribs do not share with 1:1 conicity or inclination but indicate the individual dimensions. at the limit 50x45°...(attention can not be written 50x30° but should be quoted with size and angle quota). however are not conical the elements that you mistakenly quoted such
* as far as you use the b method for the quotation seen from the base of the drawing, must report all the quotas written horizontally and not at home. Therefore you should learn the method to which is the most correct and compact one especially if there are many odds in parallel
* holes are always listed n°4 holes ø 5.5 ....if there is a m5...because if you write ø5 you put a m4
- First of all, a nice cartilage and a square in accordance with the sheet. already here are defined scales, materials, weights, general tolerances of form and position according to uni en iso 22768, European or American projection, general bevel, thermal treatments possible etc.
- thickness suitable according to standard to represent edges and other lines
- draw the main view of the piece and its "rightly necessary" views plus a set of sections and/or views in detail
- then we go to quota the mechanical processes of removal of truciole and some indication on the casting crude (or electro-welded steel), we indicate the signs of roughness, tolerances shape and size
* It is strongly indicated to make views with partial sections on site
* it is not recommended to use the representation of edges not in sight dotted because they weigh the design, even if they raise many doubts on the very complicated pieces
* the handkerchiefs and ribs do not share with 1:1 conicity or inclination but indicate the individual dimensions. at the limit 50x45°...(attention can not be written 50x30° but should be quoted with size and angle quota). however are not conical the elements that you mistakenly quoted such
* as far as you use the b method for the quotation seen from the base of the drawing, must report all the quotas written horizontally and not at home. Therefore you should learn the method to which is the most correct and compact one especially if there are many odds in parallel
* holes are always listed n°4 holes ø 5.5 ....if there is a m5...because if you write ø5 you put a m4
meccanicamg
Guest
However they are not ø5...5.5 holes because on the axieme there are m10 screws, so the holes are ø10,5 or ø11.
If scale drawings, the odds are those of the original in 1:1 and should not be scaled.
If scale drawings, the odds are those of the original in 1:1 and should not be scaled.
meccanicamg
Guest
the view on the top right is wrong because the view of the greater diameter of the gun of the curtainr is missing.
also the view at the bottom left, as it is superfluous, therefore useless.
also the view at the bottom left, as it is superfluous, therefore useless.
meccanicamg
Guest
the basic hours requirements for the design course you are facing are in this pdf http://www.docente.unife.it/alessandro.carandina/allegati/disegno_tecnico_industriale_slides.pdf and knowledge is required on the internally indicated topics.
Unfortunately the first course of drawing is poor but it serves to force students to have a base.
the course that is then a little more targeted to the use of cad.
there are some projects of year that make the ingenuity aguised but not enough.
Unfortunately the first course of drawing is poor but it serves to force students to have a base.
the course that is then a little more targeted to the use of cad.
there are some projects of year that make the ingenuity aguised but not enough.