GND and Supply layer polygons

Ken Mcnabb schrieb:

I am currently designing a 4 layer board using layer 2 as GND and layer 3 as

VCC. Everything has come together well, but I need to isolate an area around

some connectors and Relays which will carry 240VAC.

How do I manipulate the default polygon on these layers which appears to

cover the entire board layer to the edges.

Do not use supply layers, use real polygons instead. Then you can easily

define the outlines by yourself.

Additionally, the distance to the borders is specified in the DRC

parameters.

The distance to other signal types can be set by using "classes" - see

HELP CLASS (and/or the manual) for details. Here, you'd need a class for

the signals carrying mains voltage, then set the minimum distance

between this class and all other classes to (say) 6 mm, and (say) 2 mm

within this class. The supply polygon (of one of the other classes) will

automatically keep this distance from all objects carrying line voltage

then (when calculated with ratsnest). Take care to run the DRC also to

check for distance violations.

Finally, common layers for ML4 are 1, 2, 15 and 16 (15 instead of 3).

Tilmann

Ken Mcnabb schrieb:

I am currently designing a 4 layer board using layer 2 as GND and layer 3 as

VCC. Everything has come together well, but I need to isolate an area around

some connectors and Relays which will carry 240VAC.

How do I manipulate the default polygon on these layers which appears to

cover the entire board layer to the edges.

Do not use supply layers, use real polygons instead. Then you can easily

define the outlines by yourself.

Additionally, the distance to the borders is specified in the DRC

parameters.

The distance to other signal types can be set by using "classes" - see

HELP CLASS (and/or the manual) for details. Here, you'd need a class for

the signals carrying mains voltage, then set the minimum distance

between this class and all other classes to (say) 6 mm, and (say) 2 mm

within this class. The supply polygon (of one of the other classes) will

automatically keep this distance from all objects carrying line voltage

then (when calculated with ratsnest). Take care to run the DRC also to

check for distance violations.

Finally, common layers for ML4 are 1, 2, 15 and 16 (15 instead of 3).

Tilmann