doubt about the quotation of the fittings

[DIEGO98GT2RS]

good evening to all, I would like to know if it is necessary to quote the center of the ray of the fittings or it is a redundant thing. . .
I leave you a small example design that I listed on the flightThank you so much in advance to all!

 

[MassiVonWeizen]

No need.

Why not use the correct line thicknesses? I already wrote it in the other thread.

 

[MassiVonWeizen]

by racordi means radius r2 and do not need to quote the center
for radius r9, which is not a fitting, instead it serves

 

[exxon]

can not even serve for r9 if the external dimension of the piece is listed.

in general, to check if the quotation is correct, you need to quote the whole piece, otherwise it is impossible to give a certain opinion.

with regard to the 5,6, the same refers to a diameter. the norm provides that the quotas referring to diameters are usually preceded by the relative symbol. when it is evident, as in the case in question, the symbol is not mandatory, but not even forbidden. I never object to the symbol as it makes reading the drawing more immediate. in particular cases I only object when the measuring line passes through the center of the circumference.

 

[DIEGO98GT2RS]

by racordi means radius r2 and do not need to quote the center
for radius r9, which is not a fitting, instead it serves

I read the files you recommended, but our professor wants us to use that kind of thickness... and even his explanations leave as much doubt and I am at the beginning I have no experience. . .

Thanks anyway!
Good day to all

 

[DIEGO98GT2RS]

can not even serve for r9 if the external dimension of the piece is listed.

in general, to check if the quotation is correct, you need to quote the whole piece, otherwise it is impossible to give a certain opinion.

with regard to the 5,6, the same refers to a diameter. the norm provides that the quotas referring to diameters are usually preceded by the relative symbol. when it is evident, as in the case in question, the symbol is not mandatory, but not even forbidden. I never object to the symbol as it makes reading the drawing more immediate. in particular cases I only object when the measuring line passes through the center of the circumference.

in theory that is only a view of a fairly complex piece. So if I have total dimensions in another view I don't have to express the center of the larger radius?

 

[exxon]

a university professor who demands from students who do not follow the norms. Good to know. is this imposition verbal or has it written somewhere? I'd like to see you.

 

[DIEGO98GT2RS]

a university professor who demands from students who do not follow the norms. Good to know. is this imposition verbal or has it written somewhere? I'd like to see you.

verbal imposition... but to tell you that it also makes us cartilages not according to norm

 

[exxon]

when you have doubts whether a quota serves or not, try to ask if you would be able to build (or re-design) the piece, without that quota. If you could do so, the share is superfluous, otherwise it is necessary.

about the line thicknesses, can you bring back what it asked you specifically? There are dozens of type/thick combinations, different for each function in a design, how do you do without a reference table?

 

[MassiVonWeizen]

I read the files you recommended, but our professor wants us to use that kind of thickness

It's impossible.
how do you distinguish the boundary line from the quota line, which besides is attached to the piece and not distanced as it should be?

 

[DIEGO98GT2RS]

when you have doubts whether a quota serves or not, try to ask if you would be able to build (or re-design) the piece, without that quota. If you could do so, the share is superfluous, otherwise it is necessary.

about the line thicknesses, can you bring back what it asked you specifically? There are dozens of type/thick combinations, different for each function in a design, how do you do without a reference table?

we have only two types of thicknesses:
bigger for contours
thinner for all other...

However it is industrial design for design

 

[MassiVonWeizen]

if you are using autocad you should disable the display of the line thickness and maybe set the layers with different colors

 

[MassiVonWeizen]

the rules must be followed. If you challenge the reason you have it because you have a written thing that regulates the design and not a word.


However in this design the difference of thickness is seen... When I wrote the post#2 I was a little reckless...

 

[DIEGO98GT2RS]

the rules must be followed. If you challenge the reason you have it because you have a written thing that regulates the design and not a word.


However in this design the difference of thickness is seen... When I wrote the post#2 I was a little reckless...

no problem! I will follow your advice, thank you!