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Thread: Good old fashioned drawing checking

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    Default Good old fashioned drawing checking

    I want to pick your brains about how you go about checking drawings.

    Not CAD files. Not 3D models, just good old fashioned print-it-off-on-paper and make sure that's it's correct drawing checking.

    I also don't mean drawing Reviewing - i.e. reviewing the manufacturing process that the company intends to use. I just mean adding up dimensions and making sure that all the right lines are there...

    • What do YOU check?
    • What sort of method do you follow to make sure that you've covered everything?


    I'm really interested in what you have to say.

    Paul

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    Certified AUGI Addict jaberwok's Avatar
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    Default Re: Good old fashioned drawing checking

    Quote Originally Posted by Paul Munford View Post
    I want to pick your brains about how you go about checking drawings.

    Not CAD files. Not 3D models, just good old fashioned print-it-off-on-paper and make sure that's it's correct drawing checking.

    I also don't mean drawing Reviewing - i.e. reviewing the manufacturing process that the company intends to use. I just mean adding up dimensions and making sure that all the right lines are there...

    • What do YOU check?
    • What sort of method do you follow to make sure that you've covered everything?


    I'm really interested in what you have to say.

    Paul
    Hi Paul.
    I haven't run into an old-fashioned (someone employed as a) D.O. Checker in years. I think they're extinct.

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    Default Re: Good old fashioned drawing checking

    Lol

    The same question is asked every time a set of prints is handed over to production:

    'Did you check these?'

    The Drafters always answer 'Yes', but I'll bet they're thinking 'well - I looked at them...' It's not quite the same thing...

    What did the D.O. Checker used to cover in your company?

    Paul

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    Default Re: Good old fashioned drawing checking

    In many companies the checker checked everything. That was his job.
    Correct and complete views, sheet layout, dimensions, notes, references to/from other sheets, company "style".

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    Default Re: Good old fashioned drawing checking

    Of course, I first check the "obvious" things like cut-off views and such, but I figure the technical / style stuff is mostly a given.

    Since I do shop drawings, so my theoretical process is to walk myself through the set, pretending to be the architect or g/c, noting anything that doesn't immediately make sense, add up, etc. Try to see if there's any point at which I could see a reviewer getting a different impression about exactly what we intend to provide than what is shown. Most importantly, make sure any outstanding questions are clearly identified and explained (not that they'll be answered anyway, but I have to try. :P).

    Of course, I said "theoretical." In reality, it's usually publish-and-pray.

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    Default Re: Good old fashioned drawing checking

    That's a good method StDoodle - put yourself in the place of your customer, I like it

    How do you check for accuracy? i.e. That the plan dimensions stack up with the height dimensions e.t.c?

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    Default Re: Good old fashioned drawing checking


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    All AUGI, all the time Richard McDonald's Avatar
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    Default Re: Good old fashioned drawing checking

    In simple terms everything drawn and annotated is checked.

    A print is worked through systematically with a highlighter and every dimension and note is checked against the design.
    If its correct it goes green if not the big red pen comes out.
    Amendments are highlighted yellow when corrected in CAD. The new and old check prints are then resubmitted.
    If the amenments are correct they are highlighted blue (turning the previou yellow highlight green) and if everybody has done their job correctly the drawing issued.

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    Default Re: Good old fashioned drawing checking

    It depends on what the checker is checking. Where does a full design verification end and checking begin? Making this line distinct would be key for me.

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    Default Re: Good old fashioned drawing checking

    Quote Originally Posted by Statler View Post
    In simple terms everything drawn and annotated is checked.

    A print is worked through systematically with a highlighter and every dimension and note is checked against the design.
    If its correct it goes green if not the big red pen comes out.
    Amendments are highlighted yellow when corrected in CAD. The new and old check prints are then resubmitted.
    If the amenments are correct they are highlighted blue (turning the previou yellow highlight green) and if everybody has done their job correctly the drawing issued.
    I've had exactly that system at a couple of (the better organized) companies.

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