huangyhg

assembly drawing, level 3
i have a question on level 3 assembly drawings. the company i work for is really not into creating level 3 drawings. so with a contract with a military customer, the customer request level 3 drawings.
the company i work for typically does their assembly drawings as isometric explosion view.
my question, does level 3 drawings prohibit the use of isometric explosion views to depict an acurate assembly type drawing. i do not think so, but not sure if there is a spec that specifies this.
thanks.
check out our whitepaper library.
you can use exploded views as additional to the other views, but not alone.
chris
systems analyst, i.s.
solidworks 06 4.1/pdmworks 06
autocad 06
the specs are now found in the appendix if asme y14.100. the appendix are a copy of what was mil-std-100 and mil-dtl-31000.
--scott
thanks ctopher and swertel.....i knew you could use it, but not alone, especially if this is a large assembly with many sub-assemblies fastened to it....hard to explain to people who are not use to seeing that. only some kind of spec will prove a point.
an exploded view doesn't actually show the part assembled and as such shouldn't be used as the only view(s). it's kind of in 14.5 (or maybe a related document, can't re
also, swertel, you know of a site where i could look thru asme y14.100? this company will not spend the money to get a copy.
thanks
you can't look through asme docs without purchasing them.
that's too bad. every eng company should have a copy.
chris
systems analyst, i.s.
solidworks 06 4.1/pdmworks 06
autocad 06
this company only has short version, and unfortunately asme y14.100, it doesn't....
kenat, read that forum...wow. but in a nut shell, seems depending on the customer requirement, so goes the drawings. usaf, wants level 3....to me, only an isometric assembly does not give them what they want, or paid for.
thanks
i've never worked level 3 as such (my defense work was back in the uk) but i'd doubt if just iso would do them, especially just an exploded iso.
y14.24m-1989 (our current edition has gone walk-about) says at requirements paragraph 4.3d
[quote]depiction of the items in the assembly relationship, using sufficient detail for identification and orientation of the items. details of a subordinate assembly are not normally repeated on the assembly drawing of a higher order.[quote\]
i think is says the same in the newer version.
so certainly i would expect just an exploded iso not to be acceptable, it doesn’t show items in the assembly relationship and doesn’t rigidly define the orientation of the items.
i know a man who has checked level 3, i'll see if i can get him to chip in.
ken
oops, make that
............
quote:
depiction of the items in the assembly relationship, using sufficient detail for identification and orientation of the items. details of a subordinate assembly are not normally repeated on the assembly drawing of a higher order.

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