Imported BMP artwork fails the DRC

I’ve imported some artwork into my board via the import-bmp.ulp in Eagle and it looks great. If I place the artwork in the top copper layer, I get DRC trace width errors. Also, the Advanced Circuits FreeDFM also complains about the copper logo. Is there a way to fix this?

Should I just get the board to pass DRC and FreeDFM before I add the copper artwork and then ignore the new art-related errors?

Thanks,

-Scott

If DRC and FreeDFM complains when the artwork is in place, the boardhouse will most likely complain as well if you send off the gerbers for production. Only way to fix it, as far as I know, is to make the width of the tracks wider. Could also be that it complains about clearance between the tracks as well.

Stig

So how do I make the tracks wider? None of the things I tried seemed to help. Advanced Circuits called me back after the FreeDFM and said none of the errors would make a difference in manufacturing, but I’d still like to figure out a way to generate error-free gerbers with logos and images. The letters in the text are too close together so I get clearance complaints as well as narrow trace errors.

StigOE:
If DRC and FreeDFM complains when the artwork is in place, the boardhouse will most likely complain as well if you send off the gerbers for production. Only way to fix it, as far as I know, is to make the width of the tracks wider. Could also be that it complains about clearance between the tracks as well.

Stig

ScottH:
So how do I make the tracks wider? None of the things I tried seemed to help. Advanced Circuits called me back after the FreeDFM and said none of the errors would make a difference in manufacturing, but I’d still like to figure out a way to generate error-free gerbers with logos and images. The letters in the text are too close together so I get clearance complaints as well as narrow trace errors.

If they said the error wouldn't be a problem, I don't think I would have bothered to do anything about the logo.

But to answer your question, assuming your logo is made up of individual tracks, click on Change->Width-> and click on each individual track. For text it is Change->Font (or Ratio) and select suitable values and click on the text.

If you set all the tracks and text in the logo to be the same Net name, you won’t get clearance errors between them. You may get Same net clearance errors, though.

I’m no Eagle expert and I’ve never used logos, so there may be better ways to do this.

Stig

I’ve tried changing the trace width, but it appears that the import-bmp.ulp program builds the graphics out of some other primitive (rectangles???) so that didn’t work. The net name idea is a good one. I’ll have to give that a shot.

For this board, I can just do the FreeDFM and DRC check before I slap the logo on as a final step, but it would be nice if I could make changes to the board while the graphics were there. This would be more important for more complicated designs. Besides, removing the graphics to do the DRC check is a pain.

I guess I need to delve into import-bmp.ulp and see how it really works.

Thanks,

-Scott

StigOE:

ScottH:
So how do I make the tracks wider? None of the things I tried seemed to help. Advanced Circuits called me back after the FreeDFM and said none of the errors would make a difference in manufacturing, but I’d still like to figure out a way to generate error-free gerbers with logos and images. The letters in the text are too close together so I get clearance complaints as well as narrow trace errors.

If they said the error wouldn't be a problem, I don't think I would have bothered to do anything about the logo.

But to answer your question, assuming your logo is made up of individual tracks, click on Change->Width-> and click on each individual track. For text it is Change->Font (or Ratio) and select suitable values and click on the text.

If you set all the tracks and text in the logo to be the same Net name, you won’t get clearance errors between them. You may get Same net clearance errors, though.

I’m no Eagle expert and I’ve never used logos, so there may be better ways to do this.

Stig