I would like to know if it's possible to customize the revision letter sequence. Solidworks' sequence conforms to ASME Y14.35M-1997 skipping letters I,O,Q,S,X and Z. We would like a straight A-Z sequence.
I don't know how to do that.
A workaround is:
- Create revision after H. It will be called "J".
- Right click on the row. Chose "Row>Insert Row Above".
- Label the added revision "I"
- Delete revision "J".
The workaround isn't great, because you will still have to hand-write the notes for the revision symbols in the drawings, so they won't be linked.
Then the next time you add a revision it should again start with "J".
We have been doing something similar for some time...
-Insert new row after row "H"-Label the added revision "I" and change revision property to "I"
But like you said, nothing is linked and lots of manual intervention. I was hoping it would be configurable in the drafting standard. I tested with ANSI and ISO and they both use the ASME scheme.
I'm working on our PDM system - and I'm thinking of officially switching to straight alpha revsion letters.
Usually the revision table shows G, H... and then they are going to think the next revision is a one? Even if the machine shop did think they were making revision "one", what really is the impact of that? As long as they use the newest correct print?
Skipping letters is an esoteric tribal knowledge sort of thing that requires an effort to get everyone to maintain. I say tribal, because even if it is written down people have to remember to go look at the spec, and who wants to do that day-to-day? Even engineers and drafters, who deal with this the most, often forget to skip Q, S, X or Z. One example of the effort: for file migration - Do we bump legacy documents up a rev letter if they have one of the forbidden letters? Going, forward PDM will make it correct for things in the vault, but there is plenty of other activity in ERP, etc. (we are not linking PDM and ERP yet)
My overall assessment is: Not worth the trouble! Does anyone (in addition to McLaughlin) agree?
We always specify our drafting standard in the notes and the drawing standard specifies the revision scheme. It's difficult to misinterpret an “I” for a 1 when the standard specifies an alphabetic scheme.
BTW, in case someone wants a skip list for PDM Workgroups, I created one that covers every officially allowed rev (420 in all).
These are the sort of discontinutites that annoy me with SolidWorks. SolidWorks revisioning automatically skips letters with a funny work around in order to get them right. Then PDM works you need to do a work around to get it to work like SolidWorks.
I would think that although the program was originaly developed by a diffrent company after being together a year or at most two they would work out these issues.
The best and most consistent strategy would be for both SW and PDM to allow full customizability. Some want to go with standards, some want to develop their own standards, and some don't want to use revisions at all (every change is a new part number). Letting each company choose their own way and implement it across products seems the obvious path to follow, but unfortunately the drive to 'automate' everything often results in having someone else's decisions forced upon you.
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