Help with a 1960's era drawing call out... [SolidWorks]

Prev: How Does Your CADCAM System Handle Real World Simulation Tasks?
Next: What Is The Best Way To Learn DP Technology Esprit?

From: Cliff on 18 Dec 2009 13:24

On Fri, 18 Dec 2009 07:49:45 -0500, IYM <"S U N risr"@optonline.net> wrote:

>(BTW - for the other poster - It's a moving part - no welds whatsoever)

What does it move relative to at all those locations?
--
Cliff

From: Cliff on 18 Dec 2009 13:26

On Thu, 17 Dec 2009 19:35:22 -0800, Bruce L. Bergman
<bruceNOSPAMbergman(a)gmail.com> wrote:

> Well, even with the free pass I still wouldn't "just" ignore that
>callout without thinking it through first

Give a copy of the print *as is* to jb to make.
Then don't do what he did.

Problem solved.
--
Cliff

From: IYM "S U N on 4 Jan 2010 16:01

IYM wrote:
> Gerald Abrahamson wrote:
>> On Fri, 11 Dec 2009 08:37:37 -0500, IYM <"S U N
>> risr"@optonline.net> wrote:
>>
>>> Cliff wrote:
>>>> On Wed, 09 Dec 2009 11:21:14 -0800, BillT <kinzie(a)mail.com> wrote:
>>>>
>>>>> Kirk Gordon wrote:
>>>>>> Cliff wrote:
>>>>>>> On Mon, 07 Dec 2009 14:57:54 -0500, IYM <"S U N
>>>>>>> risr"@optonline.net> wrote:
>>>>>>>
>>>>>>>
>>>>>>>> I've been working on drawings since the mid 1980's and I haven't
>>>>>>>> come across this one yet...
>>>>>>>>
>>>>>>>> Anyone ever see a call out on a print like the one below? This
>>>>>>>> print is from the '60 and it points to a few surfaces and a
>>>>>>>> bore. I'm thinking it might be some kind of burr call-out? The
>>>>>>>> mating part calls out the same symbol on the mating shaft and
>>>>>>>> face. All the same surfaces indicated by this also have the
>>>>>>>> normal 32 surface finish call out, so it's not that.
>>>>>>>>
>>>>>>>>
>>>>>>>> ___B___ ___15___
>>>>>>>> / \/\/
>>>>>>>> /
>>>>>>>> | /
>>>>>>>> |/__
>>>>>>>>
>>>>>>>> I tried searching the web, but came up short...any ideas?
>>>>>>>>
>>>>>>>> Thanks
>>>>>>>>
>>>>>>>> IYM
>>>>>>> Anybody?
>>>>>> I don't recognize it the way it shows up in text-only; but
>>>>>> given the age and content, I'd guess it's calling for a .015
>>>>>> corner or corner break.
>>>>>>
>>>>>> KG
>>>>>>
>>>>> I think that's a bingo! Old print - R looks like a B... makes sense.
>>> No - Definatly a B...Print is clear, just old. Sorry about the text
>>> look of it, but I tried (lol) the bottom is supposed to be an arrow
>>> head, not a corner it's pointing to. It's supposed to be one
>>> straight unbroken line with a kind of "w" in the line and it actually
>>> points to 3 surfaces and a bore. Interestingly, the mating part has
>>> the same symbol on the mating surfaces and features. Customer is
>>> still looking into it and will post the reply when I find out.
>>
>> If these mating parts/surfaces are hand-fitted for final
>> assembly, then it is probably a "get it this close" to the
>> final dimension--and that leaves enough material to be
>> ground off a round surface or manually honed out of the hole
>> diameter to fit. Think crankshaft and bearing.... Turn the
>> OD of the crank surfaces to within (say) .015" and then use
>> the crank grinder to get to the final dimension. Then
>> machine the bearings (or whatever) to 015" undersize--and
>> then manually bore and fit the final crank dimensions once
>> it is in hand. This would be especially true if the
>> centerlines of those surfaces were required to be straight
>> line.
>
>
> Just FYI - I got confirmation back from the customer today....They had
> been looking at it, checking archives ect. and finally came up with....
>
> <drum-roll>
>
> "We have no freakin' idea what the hell that is!" LOL and the solution
> was to give us a waiver saying to ignore that callout...
>
> There is always a first for everything.... lol

Just following up - Our customer finally found an ancient spec that
contained the information! It was their own internal spec regarding
deburring. They have three grades (A, B, & C,) from best to worse
(won't bore you with acceptance criteria for each) and the number
designates the magnification level it has to be inspected under. So my
drawing designated a "B" and had the # 15...

Thought I'd let everyone know in case they were interested....

Thanks....

IYM

From: Cliff on 5 Jan 2010 04:48

On Mon, 04 Jan 2010 16:01:38 -0500, IYM <"S U N risr"@optonline.net> wrote:

>IYM wrote:
>> Gerald Abrahamson wrote:
>>> On Fri, 11 Dec 2009 08:37:37 -0500, IYM <"S U N
>>> risr"@optonline.net> wrote:
>>>
>>>> Cliff wrote:
>>>>> On Wed, 09 Dec 2009 11:21:14 -0800, BillT <kinzie(a)mail.com> wrote:
>>>>>
>>>>>> Kirk Gordon wrote:
>>>>>>> Cliff wrote:
>>>>>>>> On Mon, 07 Dec 2009 14:57:54 -0500, IYM <"S U N
>>>>>>>> risr"@optonline.net> wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>>> I've been working on drawings since the mid 1980's and I haven't
>>>>>>>>> come across this one yet...
>>>>>>>>>
>>>>>>>>> Anyone ever see a call out on a print like the one below? This
>>>>>>>>> print is from the '60 and it points to a few surfaces and a
>>>>>>>>> bore. I'm thinking it might be some kind of burr call-out? The
>>>>>>>>> mating part calls out the same symbol on the mating shaft and
>>>>>>>>> face. All the same surfaces indicated by this also have the
>>>>>>>>> normal 32 surface finish call out, so it's not that.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> ___B___ ___15___
>>>>>>>>> / \/\/
>>>>>>>>> /
>>>>>>>>> | /
>>>>>>>>> |/__
>>>>>>>>>
>>>>>>>>> I tried searching the web, but came up short...any ideas?
>>>>>>>>>
>>>>>>>>> Thanks
>>>>>>>>>
>>>>>>>>> IYM
>>>>>>>> Anybody?
>>>>>>> I don't recognize it the way it shows up in text-only; but
>>>>>>> given the age and content, I'd guess it's calling for a .015
>>>>>>> corner or corner break.
>>>>>>>
>>>>>>> KG
>>>>>>>
>>>>>> I think that's a bingo! Old print - R looks like a B... makes sense.
>>>> No - Definatly a B...Print is clear, just old. Sorry about the text
>>>> look of it, but I tried (lol) the bottom is supposed to be an arrow
>>>> head, not a corner it's pointing to. It's supposed to be one
>>>> straight unbroken line with a kind of "w" in the line and it actually
>>>> points to 3 surfaces and a bore. Interestingly, the mating part has
>>>> the same symbol on the mating surfaces and features. Customer is
>>>> still looking into it and will post the reply when I find out.
>>>
>>> If these mating parts/surfaces are hand-fitted for final
>>> assembly, then it is probably a "get it this close" to the
>>> final dimension--and that leaves enough material to be
>>> ground off a round surface or manually honed out of the hole
>>> diameter to fit. Think crankshaft and bearing.... Turn the
>>> OD of the crank surfaces to within (say) .015" and then use
>>> the crank grinder to get to the final dimension. Then
>>> machine the bearings (or whatever) to 015" undersize--and
>>> then manually bore and fit the final crank dimensions once
>>> it is in hand. This would be especially true if the
>>> centerlines of those surfaces were required to be straight
>>> line.
>>
>>
>> Just FYI - I got confirmation back from the customer today....They had
>> been looking at it, checking archives ect. and finally came up with....
>>
>> <drum-roll>
>>
>> "We have no freakin' idea what the hell that is!" LOL and the solution
>> was to give us a waiver saying to ignore that callout...
>>
>> There is always a first for everything.... lol
>
>
>Just following up - Our customer finally found an ancient spec that
>contained the information! It was their own internal spec regarding
>deburring. They have three grades (A, B, & C,) from best to worse
>(won't bore you with acceptance criteria for each) and the number
>designates the magnification level it has to be inspected under. So my
>drawing designated a "B" and had the # 15...
>
>Thought I'd let everyone know in case they were interested....
>
>Thanks....
>
>IYM

Very interesting.
Thanks for the update.
Who would ever have guessed?

And how did they lose/forget their own internal spec?

BTW, All such prints should refer to the internal spec & it's
revision level and be included with all requests to outside vendors.
"Shop Standard"

Clearly time for a "Redrawn W/O Change" that includes the
info in an explicit manner but drops the spec & odd notation.

Is that "W/O Change"?
--
Cliff

From: Cliff on 5 Jan 2010 04:53

First | Prev | Next | Last
Pages: 1 2 3 4 5
Prev: How Does Your CADCAM System Handle Real World Simulation Tasks?
Next: What Is The Best Way To Learn DP Technology Esprit?