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 Clear silkscreen from pins in Allegro Package 

Last post Sun, Oct 7 2012 10:13 PM by girish. 46 replies.
Started by chads108 29 Mar 2012 08:39 AM. Topic has 46 replies and 13014 views
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  • Thu, Mar 29 2012 8:39 AM

    • chads108
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    Clear silkscreen from pins in Allegro Package Reply

     Does anyone have some SKILL code that will clear silkscreen lines back x distance from pins, either as a group or individually?  I want to use this during footprint building.  Currently I have to use delete and cut to remove pieces of lines that run through pads.

    • Post Points: 35
  • Thu, Mar 29 2012 9:11 AM

    • oldmouldy
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    Re: Clear silkscreen from pins in Allegro Package Reply
    Surely, when designing the symbol, you don't draw the silkscreen over the pins anyway??
    • Post Points: 20
  • Thu, Mar 29 2012 9:31 AM

    • chads108
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    Re: Clear silkscreen from pins in Allegro Package Reply
    Not typically, but sometimes it is easier to draw a simple rectangle, place it and then delete what I don't want.  We also use LP Wizard to build footprints and it will sometimes create the silkscreen over the pads which means a little clean-up on our part.
    • Post Points: 20
  • Thu, Mar 29 2012 1:05 PM

    • eDave
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    Re: Clear silkscreen from pins in Allegro Package Reply
    I have a silkscreen outline routine that traces the assembly outline and clears the pads. It needs some work before I can post it but, if it's what you want, I'll look at it.
    Dave Elder, Tait Communications
    • Post Points: 20
  • Thu, Mar 29 2012 1:17 PM

    • chads108
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    Re: Clear silkscreen from pins in Allegro Package Reply

     Thank you for the offer, but our silkscreen rarely follows the assembly outline.  For us, the assembly outline is at maximum tolerance and the silkscreen is at median tolerance condition.  I think from our standpoint, having a routine that will delete the silkscreen line back some default distance from the pad, or mask edge, of a pin, or pins, would make the most sense.  Thank you anyway. 

    • Post Points: 20
  • Thu, Mar 29 2012 1:29 PM

    • eDave
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    Re: Clear silkscreen from pins in Allegro Package Reply
    OK.My routine can be modified to look at the existing silkscreen instead of the outline. I'll look at it today.
    Dave Elder, Tait Communications
    • Post Points: 20
  • Thu, Mar 29 2012 6:54 PM

    • eDaNoy
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    Re: Clear silkscreen from pins in Allegro Package Reply
    Hello Dave, i could ask for your routline skill? i developed a skill that checks rated component added text rating, as for now when the skill found a component (xtal, fuse and OSC) without an added text then, the skill will create for them, since i dont have a reference point, i use component xy for my location. meaning it created a text on top of that component. maybe i could use your skill as reference. thanks

     

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  • Thu, Mar 29 2012 8:25 PM

    • eDave
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    Re: Clear silkscreen from pins in Allegro Package Reply

    See attached.

    It's a context file in the meantime. Load it by using the commands:

    In Skill (or allegro.ilinit):

    loadContext("EDAVE_clearPinSilk.cxt")

    axlCmdRegister("clear pin silk" 'EDAVE_clearPinSilk ?cmdType "interactive")

    Type  "clear pin silk 0.25 0.2" on the command line to use a soldermask clearance of 0.25 and a minimum line length of 0.2 (These are mm, you should use appropriate values for your units. eg "clear pin silk 10 8" for mils.

    You can incorporate the call into your Skill routine by calling the function EDAVE_clearPinSilk. Eg EDAVE_clearPinSilk(0.25 0.2)

    The default for sm clearance is 0.25mm and for minimum line length - 0.21mm

    Post a message if you have any problems. 

     

    Dave Elder, Tait Communications
    • Post Points: 50
  • Fri, Mar 30 2012 6:57 AM

    • chads108
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    Re: Clear silkscreen from pins in Allegro Package Reply

     Thank you.  It work great.  Having never used a contect file before, it took me a little trial and error to get it to initiate through my allegro.ilinit.  Once I figured that out, I created a custom menu pick to run the routine.  Perfect. Thanks again.

    • Post Points: 5
  • Fri, Mar 30 2012 7:03 AM

    • chads108
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    Re: Clear silkscreen from pins in Allegro Package Reply

     Wow, obviously it was too early for my grammar, and spelling, to work in my previous post this morning.

    • Post Points: 5
  • Thu, Jun 21 2012 9:43 PM

    • soonlin
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    Re: Clear silkscreen from pins in Allegro Package Reply

    Hi, Dave,

    the file is in .cxt, but not a skill file. Any guide to open the file?

    • Post Points: 20
  • Thu, Jun 21 2012 10:24 PM

    • eDave
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    Re: Clear silkscreen from pins in Allegro Package Reply
    It is Skill - just not editable. Load it per the instructions above.
    Dave Elder, Tait Communications
    • Post Points: 35
  • Thu, Jun 21 2012 11:28 PM

    • soonlin
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    RE: Clear silkscreen from pins in Allegro Package Reply
    Hi, Dave,
    i got it, thanks.
     
    Regards,


    Soon Lin, Lim - PCB Designer
    • Post Points: 5
  • Mon, Aug 13 2012 2:07 AM

    • soori3
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    Re: Clear silkscreen from pins in Allegro Package Reply

    Hello dave,

     

    I am new to use these skill files can you please help me how to use this silkscreen clearance skill file.

     

    Thanks & Regards,

    Suresh Annam 

    • Post Points: 20
  • Mon, Aug 13 2012 2:09 PM

    • eDave
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    Re: Clear silkscreen from pins in Allegro Package Reply
    Hi Suresh,

    The instructions are in the header of the file. Open it in a text editor and give it a try.

    Let me know if you have any problems.

    Regards,
    Dave
    Dave Elder, Tait Communications
    • Post Points: 50
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Started by chads108 at 29 Mar 2012 08:39 AM. Topic has 46 replies.