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  1. plmguy

    What companies do a great job at engineering document management syste

    PLM can be as simple (or as complicated) as you want to make it. Some PLM solutions are specifically designed for smaller companies with limited engineering time, IT resources, and budgets. Many PLM systems come pre-configured with a basic setup that reflects mainstream requirements and good...
  2. plmguy

    Drawing Revision & Part Revision

    Louis: Great, glad to be of some assistance. Seems like win-win all around, since it appears that MFG has better appreciation for distinction between buying a part number and buying to a document revision. KENAT: Ah, but... Your method works only where the drawing number and the part number...
  3. plmguy

    Drawing Revision & Part Revision

    Thanks, glad you found it useful. Went to my wayback machine for a few more to add to the collection, starting with the then-definitive authority from 1988... Samaras: Configuration Management Deskbook, page 499: "Revision letter, a letter added to a drawing or other document number to indicate...
  4. plmguy

    Drawing Revision & Part Revision

    A few points for consideration... First and most important, a part is not identified by its revision. If it's interchangeable, meaning that receiving inspection can throw one revision or the other into the same inventory bin, then MRP need not track the revision. OTOH, if one revision can't be...
  5. plmguy

    Part Numbering System

    Here's my best attempt at rationalizing a relatively short, numeric-only, non-significant part numbering system: http://www.buyplm.com/part-numbering-system-software.htm.aspx The short version: Significant ("intelligent") part numbers were originally used for classification because "way back...
  6. plmguy

    Still Struggling

    Well, I think you have the right plan. You'd definitely want to retain and display each document's complete revision history, not just the most recent revision. Here’s a basic outline of a minimal set of tables. I don't recommend this narrow approach for a serious PLM system, but it'll be fine...
  7. plmguy

    Simple Engineering Drawing Database

    Congratulations! This is your first step to spending many hours learning how to design and build your company's product data management ("PDM") system. Writing your own PDM software can be a surprisingly long road because it starts, as you'd expect, with just a few tables. But then the boss...
  8. plmguy

    Installation or Assembly drawing??

    Yes, I got them from MIL-STD-100F (they were dropped from G). - Ed
  9. plmguy

    Installation or Assembly drawing??

    It's important to understand who will be using the drawing, and for what purpose. Does it merely identify the system components for inspection or customer acceptance? Or does it perform another function related to transportation, installation or proper connections? Each drawing type has a...
  10. plmguy

    Drawing revision versus Part number change

    Thanks, Kenat! Inasmuch as many important MIL-STD formed the foundation of subsequent commercial standards, there's a ton of great stuff available. For example, MIL-STD-100 preceded ASME 14.x, MIL-HDBK-61B [draft] is highly correlated to EIA-649, and MIL-STD-2549 is pretty much EIA-836. If...
  11. plmguy

    Drawing revision versus Part number change

    MIL-STD-100, "Engineering Drawing Practices" section 406.13, also describes this using essentially the same words (without the copyright issues): 406.13 Change requiring new identification. When a repair part within an item is changed so that it is no longer interchangeable with its previous...

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