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 Drill Legend Incorporating Countersink 

Last post Wed, Jun 5 2013 9:09 PM by redwire. 4 replies.
Started by RonScott TI 04 Jun 2013 11:38 AM. Topic has 4 replies and 889 views
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  • Tue, Jun 4 2013 11:38 AM

    Drill Legend Incorporating Countersink Reply

    All,

    How do you incorporate a countersink to display in the drill legend? Usually, I have to put information on the FAB notes to show countersink on select drills. However, on a recent job, the layer that displays such info was not turned on, consequently, holes that needed countersink dd not receive countersink. Hence, if I could to combine countersink with a matching drill I could alleviate this problem. Any ideas would be great.

    Ron Scott 

     

    • Post Points: 20
  • Tue, Jun 4 2013 6:15 PM

    • redwire
    • Top 10 Contributor
    • Joined on Thu, Jul 17 2008
    • Allen, TX
    • Posts 875
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    Re: Drill Legend Incorporating Countersink Reply

     Have you looked at customizing your drill table? A stock one appears at <install>\share\pcb\text\nclegend

    The files there are for customizing.  The instructions are located within the files themselves.

    • Post Points: 20
  • Wed, Jun 5 2013 5:21 AM

    Re: Drill Legend Incorporating Countersink Reply

    Redwire,

    I'm not sure you understand what I'm after. When you countersink, you are essentially drilling two holes in the same place. I'll call one the primary hole that goes through the board. The second "partialhole" only provides a flare that allows the screw to set flush to the board. 

    Thanks,

    Ron Scott 

    • Post Points: 35
  • Wed, Jun 5 2013 1:14 PM

    • mcatramb91
    • Top 75 Contributor
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    • Chelmsford, MA
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    Re: Drill Legend Incorporating Countersink Reply

    Hi Ron,

    As Redwire suggested, you need to customize your drill table by copying the standard .dlt from the software and add an additional column to your drill chart with the additional countersink information.  All the details on how to do it are contained in the .dlt file, the lines that start with a semi-column (;) are instructions.

    For example, make a copy of the default_mil.dlt file in the software and make the following additions: (BOLD)

     ?ColumnDefinitions '(
                           ("Figure"      "FIGURE"        7)
                           ("Holesize"    "SIZE"         15)
                           ("Tolerance"   "TOLERANCE"    15)
                           ("PlateStatus" "PLATED"       10)                      
                           ("NonStandard" "NONSTANDARD"  15)                      
                           ("Quantity"    "QTY"           6)
                           ("USER"    "SPECIAL MACHINING"           40)
                         )
    ;
    ;   ?CustomData
    ;   -----------
    ;
    ;   A column definition in ?ColumnDefinitions above can have "User" appear
    ;   in the first field to indicate a column of user-defined data. The
    ;   data is specified by ?CustomData definitions that are matched to holes
    ;   appearing in the legend table.
    ;

          ?CustomData '(
                         ( 129.1      "Not Plated"     "248 x 100 DEGREES CSK, SECONDARY SIDE")
                       )

    This will add the countersink information in the last column for all 129.1 mils Non-plated drills in the drill chart.  I make the drill size for the holes that require a countersink unique by adding a number after the decimal point to avoid adding the countersink note on all 129 mils Non-plated drills that may be included in drill chart.  See attached image for example of the drill table with a custom column based on the updated .dlt above.

    I have used this additional column on press fit connectors drills where the manufacture recommends a drill size prior to plating. 

    Hope this helps,
    Mike Catrambone

     


    • Post Points: 5
  • Wed, Jun 5 2013 9:09 PM

    • redwire
    • Top 10 Contributor
    • Joined on Thu, Jul 17 2008
    • Allen, TX
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    Re: Drill Legend Incorporating Countersink Reply

    RonScott TI:

    Redwire,

    I'm not sure you understand what I'm after.

    Hi Ron,
    Yes, very familiar.

    Thank you

    Redwire

     

    • Post Points: 5
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Started by RonScott TI at 04 Jun 2013 11:38 AM. Topic has 4 replies.