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Home » CadSoft Support Forums » eagle.suggest.eng » Polygon thermals on for throughole only
Polygon thermals on for throughole only [message #167413] Wed, 05 October 2016 08:31 Go to next message
Joop_
Messages: 67
Registered: March 2007
Member
Dear Cadsoft team,

Could you please add another polygon property?
Usually, I want thermals only for throughole components but not for SMD pads.

This means that I have to draw separate polygons in the same layer, one with thermals on and one with thermals off.

The reason is, that all SMD components are handled by a pick and place machine, the throughole components
like pcb connecters and switches, are not. They are soldered by hand.

Thanks.
Re: Polygon thermals on for throughole only [message #167418 is a reply to message #167413] Wed, 05 October 2016 12:16 Go to previous messageGo to next message
Morten Leikvoll
Messages: 1343
Registered: November 2007
Senior Member
On 05.10.2016 10:32, Joop wrote:
> Dear Cadsoft team,
>
> Could you please add another polygon property?
> Usually, I want thermals only for throughole components but not for SMD
> pads.
>
> This means that I have to draw separate polygons in the same layer, one
> with thermals on and one with thermals off.
>
> The reason is, that all SMD components are handled by a pick and place
> machine, the throughole components
> like pcb connecters and switches, are not. They are soldered by hand.

You do know the SMD's and PAD's in a package have a "thermal" flag that
can be cleared (set by default)?
SMD's may often need thermals for service-friendliness or when wave
soldered. They are not always reflow soldered.
Re: Polygon thermals on for throughole only [message #167422 is a reply to message #167418] Wed, 05 October 2016 12:55 Go to previous message
Joop_
Messages: 67
Registered: March 2007
Member
Morten Leikvoll wrote on Wed, 05 October 2016 14:16

You do know the SMD's and PAD's in a package have a "thermal" flag that
can be cleared (set by default)?


Yes. But that's a weird solution because that way you need to create duplicate libraries,
one with, and one without thermals. Not an elegant solution.
The approach with polygons makes more sense imho.

Thanks for trying to help.


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