Control of drawing revision in title block
Control of drawing revision in title block
(OP)
o make my query easy to understand, let’s assume a hypothetical situation:
I create a model of a part "A" and assign its drawing a number, say 001.
Now assume that over a period of 1 year this drawing (i.e. 001) is used in 5 different jobs J1, J2, J3, J4 and J5.
Also assume that the higher assemblies (where drawing 001 was used) were different in each job , say H1, H2, H3, H4 and H5 respectively.
Now, after one year, I modify the part "A" to cut down its cost or some other reason. I believe a CAD program will update the drawing 001 of that part incorporating the changes.
My question is:
How do we keep a track of all the higher assemblies/sub-assemblies where part "A" is being used (since it ws created)? The reason why we need to do that is to update their drawing revision to next level, as a part on those assemblies/subassemblies has been revised.
Any help ??
I create a model of a part "A" and assign its drawing a number, say 001.
Now assume that over a period of 1 year this drawing (i.e. 001) is used in 5 different jobs J1, J2, J3, J4 and J5.
Also assume that the higher assemblies (where drawing 001 was used) were different in each job , say H1, H2, H3, H4 and H5 respectively.
Now, after one year, I modify the part "A" to cut down its cost or some other reason. I believe a CAD program will update the drawing 001 of that part incorporating the changes.
My question is:
How do we keep a track of all the higher assemblies/sub-assemblies where part "A" is being used (since it ws created)? The reason why we need to do that is to update their drawing revision to next level, as a part on those assemblies/subassemblies has been revised.
Any help ??





RE: Control of drawing revision in title block
RE: Control of drawing revision in title block
RE: Control of drawing revision in title block
RE: Control of drawing revision in title block
In a lot of military/space programs in USA or Europe, if the revision is a major rev, it is one of the 3 F's, minor rev is not. A complete redesign of the part/assy requires a new part no. I use SolidWorks CAD. If the part changes, the dwg and assy will update. PDMWorks can keep track of the revisions for you.
Chris
Sr. Mechanical Designer, CAD
SolidWorks 05 SP2.0 / PDMWorks 05
ctopher's home site
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RE: Control of drawing revision in title block
Your CAD system may incorporate something similar. Solid Edge, for example, has a Revision Manager app which includes a "where used" command.
RE: Control of drawing revision in title block
I have better things to do than to try to keep a "WHERE USED" block up to date. Follow a few simple rules...
1. Do not call up the drawing revision number of fabricated parts on parts lists or on parts bins.
2. When you need the part, order using the latest revision of the drawing. You can log the revision number on your purchase order.
3. Do not change form, fit or function of a part.
4. If a part must be modified, generate a new part number, either by tabulating the drawing, or by generating a new drawing.
Your drawing revisions will consist of corrections to errors on the original drawing, and perhaps one or two clarifications to something that was obfuscated.
Since the part does not change, you can use it in as many places as you want, and you do not have to keep track of it.
JHG
RE: Control of drawing revision in title block
Fill what's empty. Empty what's full. And scratch where it itches.