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John Baraclough
United Kingdom
129 Posts |
 Posted - 25 Jul 2013 : 08:22:48
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On many of my designs I have nested copper pour areas. For example if I have some holes which do not have thermal spokes they need a small pour area around each hole inside the larger area in which the holes do have thermal spokes.
I find it very irritating that only some of the properties for each copper pour area are embedded with that area and others appear to be the "Last Used" properties. One particularly annoying one is the "Minimum Area" parameter which always appears as the last size used. This can be totally inappropriate to a small solid area surrounding a hole with no spokes if large area has previous been poured, as no copper will appear just an error message saying that here was insufficient copper to be retained!
This is a plea to the programmers that, in the next available release, ALL copper pour parameters should be stored with a copper pour area and not just a selected few.
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Birthdays are good for you: the more you have, the longer you live. |
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DavidM
United Kingdom
458 Posts |
Posted - 25 Jul 2013 : 09:01:28
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We can certainly log the request for attaching properties such as minimum area to a specific pour area rather than being a single design-wide parameter.
However, for the particular case you describe, which is to ensure that certain holes (presumably certain vias or pads) have no spokes, you can set that as a property on the actual item itself. For example, select a via, then go to Properties, and you will see an entry called 'Plane Connection'.
This can be set to Thermal Pad (the normal thermal isolation plus spokes), Isolate from Plane (puts a full isolation gap with no spokes), or Not Isolated (floods copper right onto the copper land of the item).
Hopefully this might help you avoid having to do so much juggling with pour areas and the related parameters.
David
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John Baraclough
United Kingdom
129 Posts |
Posted - 25 Jul 2013 : 22:48:39
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Thanks David. I'll give that a try.
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Birthdays are good for you: the more you have, the longer you live. |
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Copper pour properties