Text in a Polygon

"Jeff Kincaid" <jeff.kincaid@eeontheweb.com> wrote in message

news:i2l9go$qq4$1@cheetah.cadsoft.de...

I'm using a polygon to provide a ground plane around my circuit.  I have

some text in the ground plane area, and I would like to etch the

characters

into the copper, rather than etching a bubble around the letters.  Can I

do

this?

>

Jeff

>

Jeff

For text on the Top layer, write that text into the tRestrict layer, when

you pour the polygon it won't pour where you have the text.

The "isolate" setting for the polygon comes into play and ideally for your

text needs you would set it to zero

The width of the polygon wire also affects the exactness that the pour wraps

to the text but small widths generate larger Gerber output so use as big a

width size for the polygon as you can tolerate.

Warren

Warren Brayshaw schrieb:

>> I would like to etch the characters into the copper, rather than

>> etching a bubble around the letters.  Can I do this?

 

For text on the Top layer, write that text into the tRestrict layer,

when you pour the polygon it won't pour where you have the text. The

"isolate" setting for the polygon comes into play and ideally for

your text needs you would set it to zero The width of the polygon

wire also affects the exactness that the pour wraps to the text but

small widths generate larger Gerber output so use as big a width size

for the polygon as you can tolerate.

Addendum: It makes sense to use a separate, smaller polygon (with lower

rank) only for the area that contains the text. This way, you can easily

use zero isolate and small width in the text area, without getting too

large data for the complete board.

Tilmann

"Tilmann Reh" <usenet2007nospam@autometer.de> wrote in message

news:i2lu9m$bkt$1@cheetah.cadsoft.de...

Warren Brayshaw schrieb:

>

>>> I would like to etch the characters into the copper, rather than

>>> etching a bubble around the letters.  Can I do this?

>>

>> For text on the Top layer, write that text into the tRestrict layer,

>> when you pour the polygon it won't pour where you have the text. The

>> "isolate" setting for the polygon comes into play and ideally for

>> your text needs you would set it to zero The width of the polygon

>> wire also affects the exactness that the pour wraps to the text but

>> small widths generate larger Gerber output so use as big a width size

>> for the polygon as you can tolerate.

>

Addendum: It makes sense to use a separate, smaller polygon (with lower

rank) only for the area that contains the text. This way, you can easily

use zero isolate and small width in the text area, without getting too

large data for the complete board.

>

Tilmann

Thank you both for showing the way.  I had found the Restrict layers on my

own but could not fathom how to obtain a decent-looking result.

Jeff