Section Views
Section Views
(OP)
have looked for the answer to this question in several drafting text books, although not in the ANSI standards. Is it required that section views be identified in sequence (A,B,C...) or can a letter be skipped. I had a drawing with several section views, A through F, and decided to delete C.
I was told that I would need to rename all of the sections that appeared after C. Not that it was difficult to do, especialy with SolidWorks.I have never heard of this requirement before. Is this really a necessary?
I was told that I would need to rename all of the sections that appeared after C. Not that it was difficult to do, especialy with SolidWorks.I have never heard of this requirement before. Is this really a necessary?





RE: Section Views
Some places I've seen skip letters "I" and "O" in drawing names. Yes, some drawings do get that big.
http://www.EsoxRepublic.com
RE: Section Views
RE: Section Views
Can't use letters I,O,Q,S,X & Z.
RE: Section Views
RE: Section Views
RE: Section Views
You can have a View A and a Section A-A and a Datum A all in the same drawing because these are all distinctly different drawing entities. If a drawing gets so busy that Z is reached, then you move on to double letters e.g. AA.
As the drawing is changed to add and remove sections, views, datums, etc. it's OK to leave a gap in the sequences. There certainly are no hard and fast industry-wide rules or standards that say that the gaps have to be filled! In fact, to reduce on errors, it's best to just move on to the next available letter.
The same goes with reference designators for electronic equipment; a new assy should have no gaps in reference designators. As the design is revised it is expected that gaps will appear as parts are designed in or designed out. It is certainly a fruitless exercise to fill in these gaps as the design changes. In fact, efforts to fill in those gaps has screwed up many a schematic, BOM, silkscreen, and assembly drawing!
Tunalover
RE: Section Views
On to the point of this thread. In school it was always emphicised to me that a drawing is like a map and if someone looked at it and got lost, well it needed to be changed. If it isnt clear how can they build it. Using A, AA or A1,etc will add clarity to the interpertation then that is allowed.
Best Regards
pennpoint
RE: Section Views
If the drawings are computerized into a GIS, National CAD Stds may be appropriate. See AIA/CSI/A/E/C CADD Stds. Also ISO 13567 layering standards.
RE: Section Views
leave the other section or views as before.
We simply state removed Sec AA in the
revision. It is too expensive to change
all of the views, sections, etc. just
because you delete one of these. The
same applies to datums.