Assembly Drawing theoretical question
Assembly Drawing theoretical question
(OP)
Hello,
I've considered to ask this question in CATIA forum, but I think it is more related to general mechanical engineering topics.
We've been working on an assembly drawing with a number of parts inside. In one of the sheets, I want to show some detail, but in order to do this I have to hide some of the parts in the assembly.
I cannot remember a rule about this and I also cannot remember any examples. So can we do this in an assembly drawing?
One solution may be to put a note explaining the hiding of the parts with their BOM item numbers.
Anyway, I would be happy for any help.
Best regards
I've considered to ask this question in CATIA forum, but I think it is more related to general mechanical engineering topics.
We've been working on an assembly drawing with a number of parts inside. In one of the sheets, I want to show some detail, but in order to do this I have to hide some of the parts in the assembly.
I cannot remember a rule about this and I also cannot remember any examples. So can we do this in an assembly drawing?
One solution may be to put a note explaining the hiding of the parts with their BOM item numbers.
Anyway, I would be happy for any help.
Best regards





RE: Assembly Drawing theoretical question
RE: Assembly Drawing theoretical question
In the same vein as:
"TOP"
"RIGHT SIDE"
"FRONT ISO VIEW"
"SECTION A-A"
"VIEW D-D ROTATED 45 DEG"
You would state:
"VIEW E-E
OTHER PARTS NOT SHOWN FOR CLARITY"
Or:
"FRONT VIEW SUBASSEMBLY 1"
And then call out SUBASSEMBLY 1 in your BOM on another page wherever it is inserted into the part.
And I would imagine that there are other ways of doing this as well.
Engineering is not the science behind building. It is the science behind not building.
RE: Assembly Drawing theoretical question
RE: Assembly Drawing theoretical question
The written standards cannot cover everything. A note attached to your drawing view can explain that you hid some parts.
I am a SolidWorks guy and have no experience with CATIA. In SolidWorks, I would never manually type an item number into a note. There are all sorts of ways an item number can change.
Make your part descriptions consistent and logical.
RE: Assembly Drawing theoretical question
It's sometimes nice to use item numbers to say which part isn't shown but as drawoh points out, some CAD can auto number balloons and numbers change accordingly which can cause problems.
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Assembly Drawing theoretical question
I also use the "... NOT SHOWN FOR CLARITY" method, though I question the need for standard view identification if the projections are obvious. If more than one section view is present, then the section views should all probably be named.
"Good to know you got shoes to wear when you find the floor." - Robert Hunter