Actions
Forum Thread Details
  • State Verified Answer
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 145 subscribers
  • Views 384 views
  • Users 0 members are here
Related

Eagle 6 : Problem Importing Custom Parts

Former Member

Recently started working on a new PCB board for a dev kit. I ran in an issue where I had made a custom part for the M50-3501042M50-3501042 2x10 male header with 0.05'' (1.27mm) pitch.

Note also that this is a through-hole component.

The issue I had was that I set the diameter of each of the pins in the custom package to 0.04'', however, when I imported the part into my PCB design, the pins on the board had increased in diameter and were overlapping with other pins giving DRC errors.

I updated the library and all the parts in Eagle, however, this did not fix my issue.

I have no idea on how to fix this issue. Any ideas?

Originally posted: http://electronics.stackexchange.com/questions/59580/eagle-6-problem-importing-custom-parts

  • 0

    On 03/02/2013 08:24 PM, Edwin Chand wrote:

    Recently started working on a new PCB board for a dev kit. I ran in an issue where I had made a custom part for the M50-3501042M50-3501042 2x10 male header with 0.05'' (1.27mm) pitch.

    Note also that this is a through-hole component.

    The issue I had was that I set the diameter of each of the pins in the custom package to 0.04'', however, when I imported the part into my PCB design, the pins on the board had increased in diameter and were overlapping with other pins giving DRC errors.

    I updated the library and all the parts in Eagle, however, this did not fix my issue.

    I have no idea on how to fix this issue. Any ideas?

    Originally posted: http://electronics.stackexchange.com/questions/59580/eagle-6-problem-importing-custom-parts

     

    --

    To view any images and attachments in this post, visit:

    http://www.element14.com/community/message/71141#71141/l/eagle-6-problem-importing-custom-parts

     

    The data sheet recommends 0.70+-05 mm or 27.5 mil for the drill.

    The DRC sets the restring size.

    It will be a tight fit.

    Paul R.

     

     

  • 0

    Edwin Chand wrote:

    Recently started working on a new PCB board for a dev kit. I ran in

    an issue where I had made a custom part for the M50-3501042M50-3501042 2x10 male

    header with 0.05'' (1.27mm) pitch.

    Note also that this is a through-hole component.

    The issue I had was that I set the diameter of each of the pins in

    the custom package to 0.04'', however, when I imported the part into

    my PCB design, the pins on the board had increased in diameter and

    were overlapping with other pins giving DRC errors. I updated the

    library and all the parts in Eagle, however, this did not fix my

    issue.

    I have no idea on how to fix this issue. Any ideas?

    Originally posted:

     

    http://electronics.stackexchange.com/questions/59580/eagle-6-problem-importing-custom-parts

     

    --

    To view any images and attachments in this post, visit:

     

    http://www.element14.com/community/message/71141#71141/l/eagle-6-problem-importing-custom-parts

     

    This would be the most frequently asked question . The answer is in  the

    FAQs on the cadsoft site

    Check out.

    Training >FAQ>11. How to define the pad diameter

    Alas that description is not as full as it could be.

     

    Here's the words from a recent posts on the subject.

     

    James Morrison wrote:

     

    My solution to this is to NEVER use the auto diameter. The first

    thing I do in a new PCB is set the minimum rest-ring to 0 and the max

    to 9999 (or some really large number). By doing that, the DRC will

    simply use the diameter given in the library or set explicitly for a

    given via or pad object.

     

    To me, it doesn't make much sense to be using the same percentage for

    rest-ring on 0.008" drills as for 0.150" drills. To get a

    manufacturable

    0.008" drill pad the size of the pads for the large holes is huge.

    For mounting holes you might want this, but not always.

     

    So my solution is to NEVER use the auto diameter. Just be careful.

    Any via that gets through with the diameter set to auto will end up

    with a zero-sized rest-ring. I've been meaning to write a ULP to

    detect diameter sizes set to auto, I just haven't got around to that

    yet.

     

    the CadSoft EAGLE community meets.

     

     

    Hi James

     

    I feel you must do more than what you wrote above. I suspect you also

    change the restring % of drill diameter to 0%?

    The library restring size (diameter) only wins out if it is larger than the

    DRC calculated size. Leaving the default 25% will still cause issues but

    making it small like 0% will ensure the library specified diameter will

    always be larger and so will be used.

     

    Warren

     

    --

    Viewed / responded via the newsgroup at

    news.cadsoft.de

     

     

     

  • 0 in reply to Former Member

    I reduced the Rest Ring pad min spacings to 6 mil instead and got the DRC to pass w/o overlaps. Setting the percentage to 0% for the rest ring as well.