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Domepad eagle lib part

Former Member

image

Hi,

 

The image above is a so called "domepad", a landing pattern for a button.

But does anybody know how to make this correct in a eagle library element?

 

The inner part and outside line should be functioning as different pin's.

 

The problem is that i have to draw with copper to get this shape, else i need to use many different pads.

But this way i get endless DRC errors like clearance and overlap.

And i need to choose a central point (The physical pad for in library) where the connection is made.

 

Does anybody know how to make a element where i have 2 connection points in the schematic and a DRC free footprint?

 

Thanks in advance,

 

Bram van Herck

  • 0

    Have a read of the manual Section 8.14 Arbitrary Pad shapes.

    The manual is in the docs folder of your installation. This will give you

    an understanding of the requirments for arbitrary pads.

     

    Attached is a rough library of what you are asking for. Revese engineer it

    to understand how its done especially CONNECT where each pin is connected

    to many pads. The first pin pad connection is made with the CONNECT button

    and subsequent ones made with the APPEND button.

     

    HTH

    Warren

    --

    Web access to CadSoft support forums at www.eaglecentral.ca.  Where the CadSoft EAGLE community meets.

     

  • 0 in reply to Former Member

    Warren Brayshaw wrote:

    Have a read of the manual Section 8.14 Arbitrary Pad shapes.

    The manual is in the docs folder of your installation. This will give

    you an understanding of the requirments for arbitrary pads.

     

    Attached is a rough library of what you are asking for. Revese

    engineer it to understand how its done especially CONNECT where each

    pin is connected to many pads. The first pin pad connection is made

    with the CONNECT button and subsequent ones made with the APPEND

    button.

     

    HTH

    Warren

    --

    Web access to CadSoft support forums at www.eaglecentral.ca.  Where

    the CadSoft EAGLE community meets.

     

     

    The attachment reached the Cadsoft News Group correctly but not Element14.

    Will that ever be fixed? Drew??

     

    File is at Eagle Central but it has a problem there. It picked up an

    additional extension (.htm)  filename.lbr.htm so watch out for and remove

    the additional .htm

    http://www.eaglecentral.ca/forums/index.php/m/148806/09b2cb136ce5b922484789d309009220/#msg_148806

     

    Warren

     

     

     

    --

    Viewed / responded via the newsgroup at

    news.cadsoft.de

     

     

     

  • 0 in reply to Former Member

    Hi Warren,

     

    Thanks for the quick relpy.

    I'm going to dive into the library and attempt to make my own correct one.

     

    Bram

  • 0 in reply to Former Member

    Bram Herck, van wrote:

    Hi Warren,

     

    Thanks for the quick relpy.

    I'm going to dive into the library and attempt to make my own correct

    one.

     

    Bram

     

    You're welcome.

    Note that that library did not address the  tStop and tCream layers.

    You should turn off the cream for the SMD pads and make a area that should

    be clear of solder stop with a shape on the tStop layer

     

    Warren

     

    --

    Viewed / responded via the newsgroup at

    news.cadsoft.de