Drawing Standards 1

[Alvan9]

Does anyone know the standard on my current situation?

Here is the example: I have a certain drawing that has a release date of 11/7/2007 by the draftsman, and a date of approval by our engineer of 11/7/2007 (in the title block, not the revision block). Now if a revision of the drawing is dated for 4/15/2008, would the date of the current drawing be for 11/7/2007 or 4/15/2008?

So basically in the revision block we have revision A dated 11/7/2007, then revision B dated 4/15/2008. In the title block we have the draftsman name, and the engineer approvals name, but what date do we assign the title block? Do we leave the Initial Release date of 11/7/2007, or change it to the latest updated date of 4/15/2008?

Thanks in advance!!!

 

[smcadman]

We use the date it was modeled on the title block and that one will never change (which is 11/7/2007 in your case). The revision date is the date that a revision was made and each date a revision is made has a new date.

Flores

 

[Alvan9]

Thats what I thought.

Another question.

If you have 5 total revisions throughout the history of the part, do you need to list all the revisions on the page. For example one company I worked for only listed the last 2 revisions of a part. So it would only show (for example) Revs D and E. But the company I am with now lists Every revision in the revision block, A through E. I was just wondering, is it up to the company to decide, or is there a standard practice?

Thanks.

 

[vims]

Standard is to list all.

 

[Alvan9]

Thanks

 

[macduff]

The only time it would list the current revsion in the rev block is when you would do a "Redrawn Without Change" or "Redrawn With Change". You'll usually see this method when you have a manual drawing, and redrawing in CAD.

Colin Fitzpatrick (aka Macduff)
Mechanical Designer
Solidworks 2008 SP 3.1
Dell 490 XP Pro SP 2
Xeon CPU 3.00 GHz 3.00 GB of RAM
nVida Quadro FX 3450 512 MB
I'm just a little verklempt. Talk amongst yourselves. I'll give you a topic. Pink Floyd, was neither Pink nor Floyd. Discuss!--“Coffee Talk” Mike Myers SNL

 

[CADGemini]

I have seen it both ways but the one I prefer is listing only 3 revisions at any given time. This does a couple things such as: It does not clutter the drawing and force you to go to a second page just because of the revision table. In many cases it is not important to see every revision level and really only need to see 2 revisions previous to the current rev. If you need to see revisions earlier than that you just open an earlier rev to see the rest of the history if needed. If a PLM system is used this becomes a very easy task.

Best Regards,
Jon Knabenschuh

Gemini CAD Solutions

http://www.geminicadworks.com

Challenges are what makes life interesting; overcoming them is what makes life meaningful.

Solidworks 2007

 

[Standing]

Another opinion, which is the same as the rest.
The drafter and engineer and date in title block stay the same, in your case 11/7/2007. The number of revisions shown on the drawing is the companies standard. We decided on showing the last 5. That does not take up to much space. When we put in revisions 6, we remove revision 1.


Bradley
SolidWorks Pro 2008 x64, SP4.0
PDMWorks Workgroup, SolidWorks BOM,
Dell XPS Intel(R) Pentium(R) D CPU
3.00 GHz, 5 GB RAM, Virtual memory 10240 MB,
nVidia Quadro FX 3400
"If it ain't broke, you just haven't looked hard enough." Fix it anyway.

 

[Alvan9]

Thanks for the help everyone.

 

[ctopher]

I also have seen various ways. For me, I have worked with various military/space/DOD, drawings and for them we were required to leave all rev changes on the dwgs, the title block signatures/dates did not change unless the drawing was redrawn and was a major change.

Chris
SolidWorks/PDMWorks 08 3.1
AutoCAD 06/08
ctopher's home (updated Jul 13, 2008)

 

[macduff]

All signatures and dates will always remain the same and never be changed in the title block. The only time it will change when you do a "Redrawn With Change". This is a standard practice and believe stated in the ASME standard

Colin Fitzpatrick (aka Macduff)
Mechanical Designer
Solidworks 2008 SP 3.1
Dell 490 XP Pro SP 2
Xeon CPU 3.00 GHz 3.00 GB of RAM
nVida Quadro FX 3450 512 MB
I'm just a little verklempt. Talk amongst yourselves. I'll give you a topic. Pink Floyd, was neither Pink nor Floyd. Discuss!--“Coffee Talk” Mike Myers SNL

 

[macduff]

Chris, ya beat me to the punch once again.



Colin Fitzpatrick (aka Macduff)
Mechanical Designer
Solidworks 2008 SP 3.1
Dell 490 XP Pro SP 2
Xeon CPU 3.00 GHz 3.00 GB of RAM
nVida Quadro FX 3450 512 MB
I'm just a little verklempt. Talk amongst yourselves. I'll give you a topic. Pink Floyd, was neither Pink nor Floyd. Discuss!--“Coffee Talk” Mike Myers SNL

 

[Alvan9]

Well the consensus must be right. Everyone has stated the same thing. Leave Name and Date alone.

Thanks for the help!

 

[ctopher]

Colin,


Chris
SolidWorks/PDMWorks 08 3.1
AutoCAD 06/08
ctopher's home (updated Jul 13, 2008)

 

[macduff]

right back at ya topher!

Colin Fitzpatrick (aka Macduff)
Mechanical Designer
Solidworks 2008 SP 3.1
Dell 490 XP Pro SP 2
Xeon CPU 3.00 GHz 3.00 GB of RAM
nVida Quadro FX 3450 512 MB
I'm just a little verklempt. Talk amongst yourselves. I'll give you a topic. Pink Floyd, was neither Pink nor Floyd. Discuss!--“Coffee Talk” Mike Myers SNL

 

[fcsuper]

Also, please note that there are not actual approvals on the CAD drawing, so there's actual no point in listing the engineer's approval. This is because SolidWorks does not support what is legally defined as an electronic signature. Nor does the engineer physically sign the CAD drawing with a pen. If you want the engineer's approval to mean anything, you'll need that person to physically sign the plotted drawing (which then becomes the offical version) or to have an electronic signature system in place, such as a PLM, where the approval can be recorded electronically. A less efficient third option is to record the engineer's penned approval on some sort of paper ECO that serves as an off-drawing written approval.

Matt Lorono
CAD Engineer/ECN Analyst
Silicon Valley, CA
Lorono's SolidWorks Resources
Co-moderator of Solidworks Yahoo! Group
and Mechnical.Engineering Yahoo! Group

 

[Alvan9]

One more thing. If a drawing was created back in 2000, and the draftsman has his name in the title block, and another draftsman comes behind him 6 yrs later and makes revisions, where does his name go?

 

[macduff]

On the ECO or the revision block if it has a signature for incorporation. At no time the signature in the title block gets changed unless it's a "redrawn with change" ECO. This holds true for all signatures in the title block.

Colin Fitzpatrick (aka Macduff)
Mechanical Designer
Solidworks 2008 SP 3.1
Dell 490 XP Pro SP 2
Xeon CPU 3.00 GHz 3.00 GB of RAM
nVida Quadro FX 3450 512 MB
I'm just a little verklempt. Talk amongst yourselves. I'll give you a topic. Pink Floyd, was neither Pink nor Floyd. Discuss!--“Coffee Talk” Mike Myers SNL

 

[Alvan9]

Ok, so in the Rev block. I understand that the title block never gets changed, but I just wanted to know how do we tell what draftsman did the revisions by looking at the drawing.

 

[macduff]

Alvan9,
See attached jpg

Colin Fitzpatrick (aka Macduff)
Mechanical Designer
Solidworks 2008 SP 3.1
Dell 490 XP Pro SP 2
Xeon CPU 3.00 GHz 3.00 GB of RAM
nVida Quadro FX 3450 512 MB
I'm just a little verklempt. Talk amongst yourselves. I'll give you a topic. Pink Floyd, was neither Pink nor Floyd. Discuss!--“Coffee Talk” Mike Myers SNL