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EAGLE User Chat (English) Optimizing drillholes
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  • eagle
  • layout
  • pcb
Related

Optimizing drillholes

Wolfskammer04
Wolfskammer04 over 13 years ago

I generated the Gerber files and found in the *.dri file that I have two drills with  0.0374inch (T03 0.0374inch 2). In the *.drd file I found them with this parameters:

 

T03

X10260Y24158

X10260Y26158

 

how can I found them in the board. What type of measuring unit is: X10260?

 

I want to change them to 0.0400inch.

 

Roland

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  • Former Member
    0 Former Member over 13 years ago

    On 4/2/2012 12:09 PM, Wolfskammer04 wrote:

    I generated the Gerber files and found in the *.dri file that I have two drills with  0.0374inch (T03 0.0374inch 2). In the *.drd file I found them with this parameters:

     

    T03

    X10260Y24158

    X10260Y26158

     

    how can I found them in the board. What type of measuring unit is: X10260?

     

    I want to change them to 0.0400inch.

     

    Roland

     

     

     

    Hi Roland,

     

    The X10260Y24158 is your X and Y coordinates from the origin.

    There are only 2 of them so use the change command on those locations.

     

    -D

     

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  • robotonics
    0 robotonics over 13 years ago

    Hi

     

    Im guessing you have got X and Y axis coords here in whatever units your grid is set to. If so, you could then move your cursor on the layout, and from the coords box (top left) you can read out the position that your two drills are at, you will find the pads and change the drill sizes?

     

    For example if units are in millimetres then from the cross (origin) on the pcb layout window your first drill would be at X = 102.60mm and Y at 241.58mm.

     

    Just an idea!

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  • Wolfskammer04
    0 Wolfskammer04 over 13 years ago in reply to robotonics

    Hi,

     

    I tried to do it that way but I did not find the maching holes. I know from a webcast that all measures in the gerber files base on inches except someone set it definitly to metric measures. So I swiched from one setting to the next hoping to find the maching values but I did not. It also seems to me that eagle inside uses a better accuracy as actually is used in the gerber files. Am I right? I guess I have build a simple project with only one hole to get the secrets out of the files.

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  • robotonics
    0 robotonics over 13 years ago in reply to Wolfskammer04

    Hi

     

    Oh well, worth a try! I am not sure about the accuracy issue, perhaps someone else will chime in on that.

     

    Have you tried a more low tech approach, perhaps you could preview the drill locations with a gerber viewer, and overlay on your component layout?

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  • Former Member
    0 Former Member over 13 years ago in reply to Wolfskammer04

    Wolfskammer04 wrote:

    Hi,

     

    I tried to do it that way but I did not find the maching holes. I

    know from a webcast that all measures in the gerber files base on

    inches except someone set it definitly to metric measures. So I

    swiched from one setting to the next hoping to find the maching

    values but I did not. It also seems to me that eagle inside uses a

    better accuracy as actually is used in the gerber files. Am I right?

    I guess I have build a simple project with only one hole to get the

    secrets out of the files.

     

     

    Let Eagle do all the hard work for you

    In the Board Editor: Options> Set>Drill tab>Set

    That will give you unique drill diameter symbols.

    Then run the ULP drill-legend.ulp which places a drill legend next to your

    design.

    Finally, display the Drill layer and any others that help and locate the two

    holes with the diameter of interest

     

    HTH

    Warren

    --

    Viewed / responded via the newsgroup at

    news.cadsoft.de

     

     

     

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  • Wolfskammer04
    0 Wolfskammer04 over 13 years ago in reply to robotonics

    Yes I did it and using this aaproach I could find such things like unwanted e.g. burried vias because they come from different files. But this way there is no possibility to determine between small and larger holes. That would be mice of course. The values of the drill files look like integer values. There are no decimal delimiters visible so there must be a coherency between the real values used by eagle and the used accuracy in the drill files.

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  • Former Member
    0 Former Member over 13 years ago in reply to Former Member

    Warren Brayshaw wrote:

    Wolfskammer04 wrote:

    >> Hi,

    >>

    >> I tried to do it that way but I did not find the maching holes. I

    >> know from a webcast that all measures in the gerber files base on

    >> inches except someone set it definitly to metric measures. So I

    >> swiched from one setting to the next hoping to find the maching

    >> values but I did not. It also seems to me that eagle inside uses a

    >> better accuracy as actually is used in the gerber files. Am I right?

    >> I guess I have build a simple project with only one hole to get the

    >> secrets out of the files.

    >

    Let Eagle do all the hard work for you

    In the Board Editor: Options> Set>Drill tab>Set

    That will give you unique drill diameter symbols.

    Then run the ULP drill-legend.ulp which places a drill legend next to

    your design.

    Finally, display the Drill layer and any others that help and locate

    the two holes with the diameter of interest

     

    HTH

    Warren

    --

    Viewed / responded via the newsgroup at

    news.cadsoft.de

     

    OK a I missed a point

    There is a new layer named (144)  Drill Legend that has the symbols so turn

    off the regular Drill layer

    Note the legend is ADDED as a package

     

     

    Warren

     

    --

    Viewed / responded via the newsgroup at

    news.cadsoft.de

     

     

     

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  • Wolfskammer04
    0 Wolfskammer04 over 13 years ago in reply to Former Member

    Many thanks, that works good!

     

    Roland

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