Flood bridging pins

On 24/10/16 04:27, Glenn Jones wrote:

Hi, I most likely have some setting, setup incorrectly, somewhere but I

cannot seem to figure out why the flood fill is bridging adjacent pins

vs running out traces to the flood?

 

https://gyazo.com/26b9899508a3cf38d74d07ffebf9eb3a

 

Any suggestions on hat to check?

It looks like the "width" of the polygon (which defines the thickness of

the lines it gets drawn with) is bigger than the width of the SMD pads,

by quite some margin. Eagle probably can't meet the clearance and

thermal separation rules with a polygon that thick.

On 24/10/16 04:27, Glenn Jones wrote:

Hi, I most likely have some setting, setup incorrectly, somewhere but I

cannot seem to figure out why the flood fill is bridging adjacent pins

vs running out traces to the flood?

 

https://gyazo.com/26b9899508a3cf38d74d07ffebf9eb3a

 

Any suggestions on hat to check?

It looks like the "width" of the polygon (which defines the thickness of

the lines it gets drawn with) is bigger than the width of the SMD pads,

by quite some margin. Eagle probably can't meet the clearance and

thermal separation rules with a polygon that thick.

On 10/24/2016 2:46 AM, Rob Pearce wrote:

On 24/10/16 04:27, Glenn Jones wrote:

Hi, I most likely have some setting, setup incorrectly, somewhere but I

cannot seem to figure out why the flood fill is bridging adjacent pins

vs running out traces to the flood?

 

https://gyazo.com/26b9899508a3cf38d74d07ffebf9eb3a

 

Any suggestions on hat to check?

 

It looks like the "width" of the polygon (which defines the thickness of

the lines it gets drawn with) is bigger than the width of the SMD pads,

by quite some margin. Eagle probably can't meet the clearance and

thermal separation rules with a polygon that thick.

 

Hi rob, thanks that helped a lot. Now traces are automatically coming

out of both ends of that pad which is what i want but they are still

bridging across the center of the pins as well.

Would I use a small restrict polygon to prevent that?

Glenn

On 10/24/2016 12:07 PM, Glenn Jones wrote:

On 10/24/2016 2:46 AM, Rob Pearce wrote:

On 24/10/16 04:27, Glenn Jones wrote:

Hi, I most likely have some setting, setup incorrectly, somewhere but I

cannot seem to figure out why the flood fill is bridging adjacent pins

vs running out traces to the flood?

 

https://gyazo.com/26b9899508a3cf38d74d07ffebf9eb3a

 

Any suggestions on hat to check?

 

It looks like the "width" of the polygon (which defines the thickness of

the lines it gets drawn with) is bigger than the width of the SMD pads,

by quite some margin. Eagle probably can't meet the clearance and

thermal separation rules with a polygon that thick.

 

Hi rob, thanks that helped a lot. Now traces are automatically coming

out of both ends of that pad which is what i want but they are still

bridging across the center of the pins as well.

 

Would I use a small restrict polygon to prevent that?

 

Glenn

Well not sure if that's the best way but a small restrict polygon gives

me the desired effect.

https://gyazo.com/92ec251ca1443faaa0333c266c46683f

Thanks

On 10/24/2016 12:11 PM, Glenn Jones wrote:

On 10/24/2016 12:07 PM, Glenn Jones wrote:

On 10/24/2016 2:46 AM, Rob Pearce wrote:

On 24/10/16 04:27, Glenn Jones wrote:

Hi, I most likely have some setting, setup incorrectly, somewhere

but I

cannot seem to figure out why the flood fill is bridging adjacent pins

vs running out traces to the flood?

 

https://gyazo.com/26b9899508a3cf38d74d07ffebf9eb3a

 

Any suggestions on hat to check?

 

It looks like the "width" of the polygon (which defines the

thickness of

the lines it gets drawn with) is bigger than the width of the SMD pads,

by quite some margin. Eagle probably can't meet the clearance and

thermal separation rules with a polygon that thick.

 

Hi rob, thanks that helped a lot. Now traces are automatically coming

out of both ends of that pad which is what i want but they are still

bridging across the center of the pins as well.

 

Would I use a small restrict polygon to prevent that?

 

Glenn

 

Well not sure if that's the best way but a small restrict polygon

gives me the desired effect.

 

https://gyazo.com/92ec251ca1443faaa0333c266c46683f

 

Thanks

You might also try a short restrict line on the right end, essentially

cutting off the fill from the right.  This will avoid all the drc errors

generated from having the SMD pads falling within the restrict polygon.

Looking at the second pad from the right, the bottom connection is

different from all the others.  Was this pad partially routed with a

larger wire?

HTH,

    - Chuck

On 10/25/2016 8:33 AM, Chuck Huber wrote:

On 10/24/2016 12:11 PM, Glenn Jones wrote:

On 10/24/2016 12:07 PM, Glenn Jones wrote:

On 10/24/2016 2:46 AM, Rob Pearce wrote:

On 24/10/16 04:27, Glenn Jones wrote:

Hi, I most likely have some setting, setup incorrectly, somewhere

but I

cannot seem to figure out why the flood fill is bridging adjacent pins

vs running out traces to the flood?

 

https://gyazo.com/26b9899508a3cf38d74d07ffebf9eb3a

 

Any suggestions on hat to check?

 

It looks like the "width" of the polygon (which defines the

thickness of

the lines it gets drawn with) is bigger than the width of the SMD pads,

by quite some margin. Eagle probably can't meet the clearance and

thermal separation rules with a polygon that thick.

 

Hi rob, thanks that helped a lot. Now traces are automatically coming

out of both ends of that pad which is what i want but they are still

bridging across the center of the pins as well.

 

Would I use a small restrict polygon to prevent that?

 

Glenn

 

Well not sure if that's the best way but a small restrict polygon

gives me the desired effect.

 

https://gyazo.com/92ec251ca1443faaa0333c266c46683f

 

Thanks

 

You might also try a short restrict line on the right end, essentially

cutting off the fill from the right.  This will avoid all the drc errors

generated from having the SMD pads falling within the restrict polygon.

 

Looking at the second pad from the right, the bottom connection is

different from all the others.  Was this pad partially routed with a

larger wire?

 

HTH,

    - Chuck

 

Hi Chuck this is what i have have now. I cleaned up that extra wire I

added before.

https://gyazo.com/6b906f927ffaf72e1a3bd604ac42dac2

Thanks

Glenn