AnsweredAssumed Answered

why is my exported bottom layer , turned into 3 layers

Question asked by Lee Havens on May 29, 2018
Latest reply on Jun 19, 2018 by Lee Havens

Like • Show 0 Likes0
Comment • 4

Good Evening,

I am currently having an issue with one layer of the gerber’s outputs. I can export all layers but the bottom copper lay (which has polygon pours). I know it works because I tried it on a different program then I typically use (cam350 7.5), in Lavenir and it cam in as 3 layers. The first layer was the polygon pour outlines, the next was a origin box (I believe) and last was all my traces and pads. No sure why the exported file is so messed up. I am pretty sure it has something to do with my polygon pours because all other layers of the board work properly. Any thoughts or helpful hints? Anyone have any helpful hints?

With warm regard & appreciation,

Lee Havens

No one else has this question

Outcomes

Injy Gadalla

May 29, 2018 5:04 PM

Hello Lee,

That is an interesting behavior especially with just one layer. Could you please try the following and see if it exports correctly:

first - copy/paste the bottom polygon to another PCB, and in the original PCB, delete the polygon from the bottom layer, export Gerber and see if it shows as one layer

second- go back to PCB, copy the polygon back to the bottom layer, but this time Unpour the bottom polygon and export and see if it exports as one or 3 layers.

Best Regards,

Injy Gadalla

Territory Technical Manager, SOLIDWORKS PCB

Actions

Lee Havens May 30, 2018 9:59 AM

Good Morning Injy Gadalla,

Let me just start by saying thank you for taking the time to help and it is greatly appreciated. So i tried both ideas and this is what happened. When i copy the polygon pours to a new blank board it works as i would expect it too and creates only one layer. But when i turn off the polygon pours it has no affect on the change to the bottom layers outputs. This leads me to believe it is not in the polygon pours. Also another thing i found, when i added some text strings to the bottom layer (forgot to label my board), it show them with the outline of the polygon pour layer instead of with my traces and pads on the 3 layer split from the bottom layer. Not sure what is causing this separation, any more ideas that could spark ideas?

With warm regard & appreciation,

Lee Havens

Actions

Injy Gadalla

@ Lee Havens on May 31, 2018 1:16 AM

Hello Lee,

Thank you for your kind words . I am here to help!

Without examining the PCB file it's really hard to tell what might went wrong . May be the bottom layer got corrupted ? Can you try adding another layer copy all the content from the bottom to the new layer and generate gerber to see if it the new layer exhibits the same behavior as the bottom . We can also start with process of elimination , delete all the objects from bottom and see if it still generate 3 layers ? If not , then add half of the bottom layer objects and see if the issue occurs . We try to see if we can narrow it down to an object or the layer somehow got corrupted.

You can always submit a support ticket through your VAR and let me know and I can internally track it down.

Regards!

Injy Gadalla

Actions

Lee Havens @ Injy Gadalla on Jun 19, 2018 12:13 PM

Good Afternoon Injy Gadalla,

So after some deep research, It was found that my font choice was causing the separation of the top layer. Not sure how or way it would affect the top layer and not just the legend (silk screen layer) but my next step is to figure out what font is safe. Then again it could all be just a glitch, not sure what will avoid this issue just yet. I will update this post with my findings after more work has been created, very new to this software as well as board layout and design. I do thank you for all the assistance with trying to help me with this anomaly.

Warm Regards,

Lee Havens

Actions

4 Replies

Injy Gadalla May 29, 2018 5:04 PM
Mark Correct
Correct Answer
Hello Lee,

That is an interesting behavior especially with just one layer. Could you please try the following and see if it exports correctly:
first - copy/paste the bottom polygon to another PCB, and in the original PCB, delete the polygon from the bottom layer, export Gerber and see if it shows as one layer
second- go back to PCB, copy the polygon back to the bottom layer, but this time Unpour the bottom polygon and export and see if it exports as one or 3 layers.

Best Regards,
Injy Gadalla
Territory Technical Manager, SOLIDWORKS PCB
Like • Show 0 Likes0
Actions
Lee Havens May 30, 2018 9:59 AM
Mark Correct
Correct Answer
Good Morning Injy Gadalla,

Let me just start by saying thank you for taking the time to help and it is greatly appreciated. So i tried both ideas and this is what happened. When i copy the polygon pours to a new blank board it works as i would expect it too and creates only one layer. But when i turn off the polygon pours it has no affect on the change to the bottom layers outputs. This leads me to believe it is not in the polygon pours. Also another thing i found, when i added some text strings to the bottom layer (forgot to label my board), it show them with the outline of the polygon pour layer instead of with my traces and pads on the 3 layer split from the bottom layer. Not sure what is causing this separation, any more ideas that could spark ideas?

With warm regard & appreciation,
Lee Havens
Like • Show 0 Likes0
Actions
- Injy Gadalla @ Lee Havens on May 31, 2018 1:16 AM
  Mark Correct
  Correct Answer
  Hello Lee,
  Thank you for your kind words . I am here to help!
  Without examining the PCB file it's really hard to tell what might went wrong . May be the bottom layer got corrupted ? Can you try adding another layer copy all the content from the bottom to the new layer and generate gerber to see if it the new layer exhibits the same behavior as the bottom . We can also start with process of elimination , delete all the objects from bottom and see if it still generate 3 layers ? If not , then add half of the bottom layer objects and see if the issue occurs . We try to see if we can narrow it down to an object or the layer somehow got corrupted.
  
  You can always submit a support ticket through your VAR and let me know and I can internally track it down.
  
  Regards!
  
  Injy Gadalla
  Like • Show 0 Likes0
  Actions
  - Lee Havens @ Injy Gadalla on Jun 19, 2018 12:13 PM
    Mark Correct
    Correct Answer
    Good Afternoon Injy Gadalla,
    
    So after some deep research, It was found that my font choice was causing the separation of the top layer. Not sure how or way it would affect the top layer and not just the legend (silk screen layer) but my next step is to figure out what font is safe. Then again it could all be just a glitch, not sure what will avoid this issue just yet. I will update this post with my findings after more work has been created, very new to this software as well as board layout and design. I do thank you for all the assistance with trying to help me with this anomaly.
    
    Warm Regards,
    Lee Havens
    Like • Show 0 Likes0
    Actions

why is my exported bottom layer , turned into 3 layers

Outcomes

Related Content

Recommended Content