Actions
Forum Thread Details
  • State Suggested Answer
  • Locked Locked
  • Replies 5 replies
  • Answers 2 answers
  • Subscribers 93 subscribers
  • Views 2436 views
  • Users 0 members are here
Related
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Drill Symbol limit exceeded - CircuitStudio 1.5

dabauza

Hi,

 

I´ve a problem when I generate gerber files from CircuitStudio 1.5 for a complex PCB.

 

In the process to generate gerber files, the CircuitStudio launch the next message error:

 

"Drill Symbol limit exceeded. System will switch to letter generation"

 

I think that this message error appears in GD1 layer. This layer its necessary to poduce the PCB?

 

The PCB in question have 4 layers and multiple pads and vias.

 

I have review the gerver files with a gerber viewer and I think thats its correct. Only, in some drills appears letter to indicate a drill zone.

 

It thats any problem to send this files to PCB Factory? The factory can be produced correct PCBs from this files.

 

Thank you so much for the help

  • 0

    In the Outputs section make sure that beside generating the Gerber files you generate also the NC drill files. The NC drill files holds the drills data.

    To make the PCB the manufacturer fab will need the following layers: Top Overlay, Top Solder, Top Layer, Bottom Overlay, Bottom Solder, Bottom Layer, Outline, Inner layers (if any), Mechanical layers (if you have some cutouts or the like) and the NC drill files (plated, non-plated holes).

  • 0

    I've gotten that warning too. It seems harmless.  OTOH when I look at the PCB hole report I see there's a lot of drill sizes that are "slightly" different and I try and reduce that, either by editing my library footprints or just forcing holes to be a common size (i.e. 1.00, 1.01, and 1.03 mm can all be 1.0 mm) from inside the dialog/report. I assume the fab house probably already deals with that but I would rather send as clean of project as possible.  As well as sometimes some of the oddball ones I find turn out to be not quite right.

     

    YMMV

    Brewster

  • 0

    Ok,Thank you for your answers.

     

    I'm going to try to use normalized drill to avoid error messages.

  • 0

    Is the drill change in question with a buried via?

  • 0

    I just got this error as well. When generating the drill files circuit studio has a set of unique symbols it uses to represent the different drill sizes in the design. If you exceed the number of available symbols then CS it resorts to using letters as representation.  It doesn't seem to be a that big of a problem, but something to watch out for.

     

    image