drafting standards... ha ha...

[Anonymous]

i was just in an argument(petty) over his version vs. my version of a dwg
standards question.... Opinions greatly appreciated.... On a std 4 view
dwg... (My understanding)... the base view should be the view that depicts
the most detail... and should be in the bottom left hand corner of the
page.... Okay the part in question.... flat plate with multiple holes and
pockets, on the edge of the plate are 3 tapped holes... when i do my views
for the part, using my way... ha ha... the bottom left hand view is the
plates surface which shows all the holes slots etc..., the top view of the
part shows the 3 tapped holes that are on the edge of the part.... the
problem he has with this way is that the top view shows those 3 holes as
hidden, and i dimensioned to hidden holes for their location.... He says
that it is not proper to dimension to hidden holes or features, his
resulting fix is to make my now top view... my base view , which in turn
puts my most detailed view on top, and makes a whopsided iso.... Any
opinions on this or location on the internet for some stds on this stuff...
its not real important but this topic became a (edited)this morning
and has turned out to be a whose right or wrong deal...
thanks

--
Brian Land
Mechanical Design
Lorik Tool Inc.

[jmartzig]

myself, i don't care (location) of my base view, as you do care. dim the view that shows what features the best - common sense. but of course dimming to hidden holes are a no no. but then again, your machine shop guy WILL figure out where to put the holes even though they are dimmed to hidden. could you cut a section so your holes aren't hidden? so as to satisfy your anal work associate? since i've worked at the place that i've been working at doing systems stuff (one time jobs), the most important thing is to get the product out on time, and not to be so meticulous about what the drawing looks like. just my 2 cents. hope this helps. -Joe

[Anonymous]

Change from 3rd angle to 1st angle projection and when you project your top view the holes will not be hidden. Alternatively
rotate you base view 180%%d

John Bilton

[Anonymous]

I have always understood that you do not dimension to hidden features.
If you "MUST", do a break away or a section veiw to do it.

[Anonymous]

> Change from 3rd angle to 1st angle projection

If I changed from 3rd angle to 1st angle, the shop would not even recognize
it and I'd be crucified later.

The holes are in the edge and not the face right? Would the addition of a
bottom view or side view provide the holes in object lines instead of
hidden?

[Anonymous]

Personally, I try to use as few views as possible
while showing the true intent of the drawing.
I don't care if that means starting with
the top, side, back or whatever base view.
The guys in the shop appreciate a drawing that
doesn't take a long time to try to interpret.
Speed and efficency is the name of the game.

Just my .02 cents.

You never should dimension to hidden holes or features.

[Anonymous]

I think the cleanest approach is to add a bottom view where the holes are
visible. It is likely that you will no longer need the top view unless
there is some other feature that requires it. Top-front-right side are the
commonly used views for orthographic projection, but there is nothing wrong
with other combinations that better show the part, such as
bottom-front-right side.

Ed R

[Anonymous]

thanks for all the opinions fellows, one thing remains certain... everybody
wants it a different way, and no matter how you dimension things, you can't
make everybody happy....every machinist out in the shop wants it a diff
way.... and the boss, well depending on what mood he's in.... (-:

"Ken Schumacher" wrote in message
news:7AD67D4A517B8AA10383E1B88BA949F5@in.WebX.maYIadrTaRb...
> Personally, I try to use as few views as possible
> while showing the true intent of the drawing.
> I don't care if that means starting with
> the top, side, back or whatever base view.
> The guys in the shop appreciate a drawing that
> doesn't take a long time to try to interpret.
> Speed and efficency is the name of the game.
>
> Just my .02 cents.
>
> You never should dimension to hidden holes or features.
>
>

[Anonymous]

Wow, .02 cents isn't much input Ken, you could at least put in a whole cent.

> Just my .02 cents.

[Anonymous]

We still work out of a "bowl" so there is never any question about part
orientation, isometric or breakaway views are added when necessary. We also
never, ever, dimension to hidden features. Not meaning to state the obvious
but isn't the intent of the drawing to convey an idea in an accurate and
concise a way as possible so as to minimize any chance for errors.



Steve

[Anonymous]

I have seen dimensioning to hidden done so many times. Eventually it seems
you get less picky over things like this. Especially knowing all the time
that is (was) wasted making a whole 'nother view just to be "correct".
The only thing I don't like to see is SPLIT BALLOON with SHEET NUMBER from
the BOM PROPERTIES in the bottom half that points to a hidden part - no
problem, though, since Inventor currently is not capable of this basic
function.

[Anonymous]

Also, through the years I have seen leaders to hidden holes that call out
the size, then say in the note: FROM FAR SIDE or FAR SIDE or ** FAR SIDE **
or something like that.

[Anonymous]

Hehe...'180%%d'

Use AutoCAD much John?! I still find myself doing that once in a while.
FYI, to get the degree (°) symbol to show up try holding down the ALT key
and typing 0176 using the number pad. Here's some more:

ALT+0176 = °
ALT+0216 = Ø
ALT+0153 = T
ALT+0174 = ®
ALT+0169 = ©

The degree and diameter symbols are great for using in Inventor for notes
and properties for BOM.
--
Dan Sponholz
Mercury Marine

[Anonymous]

Drafting 101: Do not dimension to hidden holes unless absolutely necessary.

I could open a can of worms but wont 😉

"Brian Land" wrote in message
news:F7FB3E0A3FEA05C8C4E57509AD34455C@in.WebX.maYIadrTaRb...
> i was just in an argument(petty) over his version vs. my version of a dwg
> standards question.... Opinions greatly appreciated.... On a std 4 view
> dwg... (My understanding)... the base view should be the view that depicts
> the most detail... and should be in the bottom left hand corner of the
> page.... Okay the part in question.... flat plate with multiple holes and
> pockets, on the edge of the plate are 3 tapped holes... when i do my views
> for the part, using my way... ha ha... the bottom left hand view is the
> plates surface which shows all the holes slots etc..., the top view of the
> part shows the 3 tapped holes that are on the edge of the part.... the
> problem he has with this way is that the top view shows those 3 holes as
> hidden, and i dimensioned to hidden holes for their location.... He says
> that it is not proper to dimension to hidden holes or features, his
> resulting fix is to make my now top view... my base view , which in turn
> puts my most detailed view on top, and makes a whopsided iso.... Any
> opinions on this or location on the internet for some stds on this
stuff...
> its not real important but this topic became a pissing match this morning
> and has turned out to be a whose right or wrong deal...
> thanks
>
> --
> Brian Land
> Mechanical Design
> Lorik Tool Inc.
>
>

[Anonymous]

The first rule of drafting is like the first rule of english - there are
more exceptions than there are rules! Just to add another viewpoint, I
prefer to have the detail views oriented the same as the assembly drawing
except for long/slender things which go on the sheet horizontally. If
additional views are helpful for fab/machining, add them.

The "don't dimension to hidden features" rule gets broken many, many times
without causing problems.

-Russ

[Anonymous]

I used to know most of the ascii codes once upon a time, guess it's lack of use. Well I'm starting to get back into programming,
so I may once again start "remembering".

John Bilton

[Anonymous]

We have Split Balloons and I don't think that is proper because it is being
redundant to the BOM.

Later
Kirk
"Paul Harvey" wrote in message
news:0F3D7192EC881985E800DE82B693E41E@in.WebX.maYIadrTaRb...
> I have seen dimensioning to hidden done so many times. Eventually it seems
> you get less picky over things like this. Especially knowing all the time
> that is (was) wasted making a whole 'nother view just to be "correct".
> The only thing I don't like to see is SPLIT BALLOON with SHEET NUMBER from
> the BOM PROPERTIES in the bottom half that points to a hidden part - no
> problem, though, since Inventor currently is not capable of this basic
> function.