on Jan 3, 2017What do you think of this PDM idea for this year's Top Ten?
PDM :: I, O, Q, S, X, and Z should be excluded in Revision letter
What do you think of this PDM idea for this year's Top Ten?
PDM :: I, O, Q, S, X, and Z should be excluded in Revision letter
I commonly see I, O, Q and S excluded. X and Z are hit or miss. Not sure there's an easy way to handle this since it is very specific and many organizations don't follow strict guidelines or have legacy issues and data that require varying Rev values.
ASME Y14.35
Hi Matt,
Defining a revision scheme is fairly simple.
If you were going to omit certain letters (typically I, O, S, Z), then I would echo the suggestion of per standard (ANSI, etc).
Joy
It's not a bad idea, but since revision schemes are so company specific, and there already exists the functionality to create a revision scheme as a list, I think this is a bit redundant.
I already have our PDM settings and file custom properties to exclude them.
It might be obvious, but why exclude them may i ask
I like leaving the customizable rev scheme in PDM Pro alone but making SW customizable to match that same rev scheme. My rev scheme I have set up in PDM Pro (which was our standard) doesn't match the characters SW chooses to emiminate or include. Very frustrating that I can't add a rev to my rev block that I can have in PDM. They both should be list driven.
Letter "I" looks like a one
Letter "O" looks like a zero
Letter "S" looks like a five
Letter "Z" looks like a two
Not sure about "X" but at a previous job we used it to identify Experimental or Prototype Revisions.
I never use any of them.
Our drawing formats say that dimensions are to be interpreted per ASME Y14.5 - 2009, but we refer to no other standards.
We have a vendor who objects to skipping the letters because their ERP system can't handle it. ;-)
I prefer to skip them.
Letter "X" looks like a multiply sign?
Letter "X" looks like a multiple of designator?
Letter "X" looks like a by designator? (.030 X 45°)
The option to exclude specific characters only. Not forced.
I believe I voted this one down.
It's basic drafting/document practice, and there are specs for this. Don't use the letters if you follow standards.
This should be optional.... Not everyone follows ANSI standards.
Agreed!! There are many things that should be optional. Some of them eventually are made optional such as the Classic colors.
The way Jiun showed it, it would be optional/an addition. It would save time to have the option instead of creating the custom alpha rev scheme.
They don't follow them because they 'are' optional. ;-)
ANSI Metric
In the ANSI Standards manual all of the dimensioning examples use millimeters as the unit of measure.
I think it should only be an option, but not just those letters. The software should let the administrator define which characters to exclude. Then, if we want to follow ANSI partially, completely, or not at all, we can all be happy.
As far as X goes, I've seen it used for the initial release "revision" or "no-change revision". Right now, my company uses "-" for the initial release. With that in mind, it might be more important for the revision scheme to allow defining the characters to use and the order, but without having to create every possible revision level like I am doing today.
I am still unclear as to why we have to eliminate any letters (even though we do where I work). So what if "I" looks like a 1 or "O" looks like an 0 or Z looks like a 2 or X looks like the X in .010 X 45. If it is inside a balloon and the person reading the drawing understands that balloons refer to items in a BOM, and it matches an item in that BOM, then they go together regardless of what they look like.
With that being said, I still think the issue is that SW doesn't match PDM. I can customize my PDM rev list to exclude half the alphabet if I want to, but I cannot customize SW to automatically eliminate those letters. When I add a rev to my drawing rev block, I get all letters except the ones SW has chosen for us to eliminate. I need PDM and SW to match. If my PDM allows me to use rev X (not that a drawing should ever get to rev X) then SW should allow me to add rev X. Instead if I get to rev X in my drawing rev table it skips it and the only way to add it correctly it to undo the rev Y that it added, add another row manually by doing an "Insert Row Above" and manually type the rev letter you want. If you let it add Y and don't undo it and just change the Y to an X, the next rev that is added is a Z not the Y again because it thinks Y has already been used.
Hi Jennifer I think the larger problem there is that PDM does not integrate with the revision table functionality in SolidWorks (even though Workgroup does!!)
Having implemented PDM for a number of companies, we came up with a "rolling revision table" where it's driven from the data card and the customer modifies their drawing border/ title block to suit. Not the best solution, but it manages the job
Kind regards
Prasad
So a good suggestion for SWX is to 1. have an option to select letters/numbers to exclude from the revision list (while we are at it from the detail/section cut letter list as well), and 2. to have an option to make the SWX revision and PDM revision synchronize.
Just saying you could use the same picture about Metric vs Imperial.
Is there some sort of ANSI or other standard for this?
I & O I have always skipped over like they were the thirteenth floor.
Q, S, X, Z I use.
I must admit that I don't typically get to such high letters of revisions. (measure twice, cut once)