Actions
Forum Thread Details
  • Replies 5 replies
  • Subscribers 188 subscribers
  • Views 906 views
  • Users 0 members are here
Related

Board Outline

e14 Contributor

Making a board with a precise outline...

What is the normal way to specify the board outline in the Gerber files?

Should there be a separate "outline file" or is it just whatever the

outermost contour in the silkscreen is understood to be the routing

contour? Do I need to take the tool size (kerf) into account or just

draw a thin line and let the board house take care of it?

 

Thanks

 

Parents

  • Gary Gofstein schrieb:

     

    Making a board with a precise outline...

    What is the normal way to specify the board outline in the Gerber files?

    Should there be a separate "outline file" or is it just whatever the

    outermost contour in the silkscreen is understood to be the routing

    contour? Do I need to take the tool size (kerf) into account or just

    draw a thin line and let the board house take care of it?

     

    I always draw a thin (0.01 mm) contour in the "milling" layer and

    provide that as separate gerber file to the board house. There never

    were any problems (with none of several board houses). AFAIK, providing

    the outline as separate gerber file is pretty common standard.

     

    Don't use width 0, since this generates invalid gerber code (aperture

    width 0 is illegal). Don't use thick wires since this might lead to

    confusion whether the inner, the center, or the outer sizes are meant.

    Don't use the dimension layer since this contains implicit objects (hole

    outlines).

     

    In question, talk to them.

     

    Tilmann

     

Reply

  • Gary Gofstein schrieb:

     

    Making a board with a precise outline...

    What is the normal way to specify the board outline in the Gerber files?

    Should there be a separate "outline file" or is it just whatever the

    outermost contour in the silkscreen is understood to be the routing

    contour? Do I need to take the tool size (kerf) into account or just

    draw a thin line and let the board house take care of it?

     

    I always draw a thin (0.01 mm) contour in the "milling" layer and

    provide that as separate gerber file to the board house. There never

    were any problems (with none of several board houses). AFAIK, providing

    the outline as separate gerber file is pretty common standard.

     

    Don't use width 0, since this generates invalid gerber code (aperture

    width 0 is illegal). Don't use thick wires since this might lead to

    confusion whether the inner, the center, or the outer sizes are meant.

    Don't use the dimension layer since this contains implicit objects (hole

    outlines).

     

    In question, talk to them.

     

    Tilmann

     

Children