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Hole in bStop?

e5frog

Using Eagle 5.10.

 

I was going to make something very easy just a 10x10cm board, no traces or

anything, soldermask on top and a hole in the soldermask so that I clear

area for contact.

 

Didn't bother making a schematic for something so simple but was not able

to get a plain round hole in the mask. image

 

A colleague of mine have a program dealing directly with the gerber files

so if I made a new layer with the intended hole he could quite easily

combine those two layers and invert the hole-layer so it would make a hole

in the square... looks quite easy when you see it.

 

Is there any such functionality in Eagle? I'd like to just be able to make

a circle in the bStop layer and then invert that to make a hole instead...

 

 

I tried adding a pad but then the top layer would crawl away from that pad

- I guess I could maybe find the settings for the distance between pad and

surrounding layer but that doesn't seem like the easiest way to do it.

 

 

One other odd thing that's not related to the topic is that although I

chose an exact size of the board according to Eagle, (it was corner to

corner exactly the desired size) the size had changed after going through

the gerber274x cam. Very odd, in Eagle it looks perfect but at the

manufacturer the size suddenly changes. Any way to avoid that, any way to

improve on that. I had set measurements to mm.

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  •  

    "Fredric" <e5frog@gmail.com> wrote in message

    news:ihk2sc$tvk$1@cheetah.cadsoft.de...

    Using Eagle 5.10.

     

    I was going to make something very easy just a 10x10cm board, no traces or

    anything, soldermask on top and a hole in the soldermask so that I clear

    area for contact.

     

    You can draw in t/bStop directly using a circle with width 0. This makes it

    a filled circle.

     

     

     

     

  • in reply to Former Member

    Yes I had managed to do that but It basically disappears into the

    background, how do I make that area inversed, the enclosed area is supposed

    to be empty and the area outside of it is supposed to be filled.

     

    I can't remember if I tried both the rectangle option and the polygon, the

    polygon option is usually very data intense so that's something I'd rather

    avoid.

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  • in reply to e5frog

    Fredric <e5frog@gmail.com> wrote:

    Yes I had managed to do that but It basically disappears into the

    background, how do I make that area inversed, the enclosed area is supposed

    to be empty and the area outside of it is supposed to be filled.

     

    I can't remember if I tried both the rectangle option and the polygon, the

    polygon option is usually very data intense so that's something I'd rather

    avoid.

     

    The stop layers are negative. Whatever you draw there is exposing copper.

    If you want to see it more clearly, set the stop layers fill pattern and

    color.

     

  • in reply to Former Member

    I thought the bStop was for the soldermask...

     

    What layer is usually used for the soldermask, can bStop be used to define

    a hole in that layer?

     

    Stop, Cream, Finish, Glue? Among those I thought the Stop alternative was

    the most logical.

     

     

    I downloaded 5.11 on this computer just to experiment some but I didn't

    manage to put a layer, a layer on top and then a hole in the layer on

    top...

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  • in reply to Former Member

    Ok, I got it now - it's so easy when you're doing normal designs. The bStop

    layer marks all the holes in the green lacquer.  Duh.

     

    Thanks, I'm going to go and see where I left my head... 

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