letter details mechanical design

[easymec]

Good morning to all, question:
when in the technical drawing I carry out a detailed view of a particular, what letter is it preferable to use? (the foreign ones? )
Am I obliged to indicate the scale of detail?
in case I finished foreign letters (j,k,w,x,y) with which letter should I continue?

 

[MassiVonWeizen]

when in the technical drawing I carry out a detailed view of a particular, what letter is it preferable to use? (the foreign ones? )

Usually you start from the a, but you can put them to pleasure if you prefer as long as it is unequivocal to what they refer to. you could also put the numbers, but it goes from if being a technical design is full of numbers and therefore could generate confusion. then also do not use anything and do directly a link between main view and detail, or if it is a detail of a typical situation (welding chinaf, center toe hole...) you write under typical detail and that's enough. someone avoids i and o becauseé can be confused with 1 and 0, but also depends on the type of character used.

Am I obliged to indicate the scale of detail?

This question asked by a designer is worrying. the stairs must be indicated when different from the general one indicated in the cart. details serve to represent something specific and generally are larger than the main view from which they are derived. if then even if it is equal to the general scale and you put the writing equally no one will strike you with a big club.

in case I finished foreign letters (j,k,w,x,y) with which letter should I continue?

If the letters are finished, you can't invent them and you can't recover them from other alphabets.
when you get to the z you continue with aa, ab, ac....
I'm a little bit of the technical design. . .

 

[welcome to the machine]

Chinese ideograms not...... .

 

[meccanicamg]

I confirm, we start from to and we use all, then aa, ab...
the technical drawing rules prescribe the obligation of the circle on the main design and the near letter and detail with detail a. below is better to put the scale without the saying "scale".
alternatively circle on the main view connected to detail, without letters and possibly the scale.

 

[easymec]

Usually you start from the a, but you can put them to pleasure if you prefer as long as it is unequivocal to what they refer to. you could also put the numbers, but it goes from if being a technical design is full of numbers and therefore could generate confusion. then also do not use anything and do directly a link between main view and detail, or if it is a detail of a typical situation (welding chinaf, center toe hole...) you write under typical detail and that's enough. someone avoids i and o becauseé can be confused with 1 and 0, but also depends on the type of character used.

This question asked by a designer is worrying. the stairs must be indicated when different from the general one indicated in the cart. details serve to represent something specific and generally are larger than the main view from which they are derived. if then even if it is equal to the general scale and you put the writing equally no one will strike you with a big club.

If the letters are finished, you can't invent them and you can't recover them from other alphabets.
when you get to the z you continue with aa, ab, ac....
I'm a little bit of the technical design. . .

As for the part of the scale of detail, in a not very recent book there was written that it is wrong to indicate it under detail, which seemed strange to me.

 

[easymec]

in most drawings the detail is indicated with the letter x or y, from here I wonder that these letters were preferable.
Thank you.

 

[MassiVonWeizen]

As for the part of the scale of detail, in a not very recent book there was written that it is wrong to indicate it under detail, which seemed strange to me.

If you bring the ensemble back or make its image you can discuss it and evaluate its reliability. probably it was written that in the case of scale equal to the general one it is wrong to indicate it. if, however, it is an old book the norms were dictated by the need to use expensive tools in time (technique) so the norms were aimed at simplifying and optimizing work; with today some norms have become obsolete and have been replaced

in Most of drawings the detail is indicated with the letter x or y, from here I have arisen the doubt that these letters were preferable.

I have no idea what drawings you have seen, but if most has x and y means that it has just two details and are probably quite old; Moreover, it is easy for drawings that almost always represent the same object. or so far you have had a dozen rather simple designs for which the majority is so small that it is easy to have the same type of representation
Obviously you cannot use the same letter attributed to a section or view.

 

[meccanicamg]

I confirm, we start from to and we use all, then aa, ab...
the technical drawing rules prescribe the obligation of the circle on the main design and the near letter and detail with detail a. below is better to put the scale without the saying "scale".
alternatively circle on the main view connected to detail, without letters and possibly the scale.

Actually, it's a 15-year-old that the rules wouldn't want you to induce "sez" or "detail" or "scale" or other things just to unify in a general way. then no one says anything if they are indicated.

 

[easymec]

I reviewed the text, tried to see the date of the edition, it's only forty years!
that time we made the rules on purpose a little like the laws in politics.
Thank you for having solved my doubt!