• Skip to main content
  • Skip to search
  • Skip to footer
Cadence Home
  • This search text may be transcribed, used, stored, or accessed by our third-party service providers per our Cookie Policy and Privacy Policy.

  1. Community Forums
  2. PCB Design
  3. arcs converted to line segments during gerber export

Stats

  • Locked Locked
  • Replies 1
  • Subscribers 164
  • Views 13730
  • Members are here 0
More Content
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

arcs converted to line segments during gerber export

tracemhos
tracemhos over 9 years ago

So I'm using Allegro 17.2 and have a contoured board outline with several arcs, some that are more of a small radius and others that are a long gentle. I'm trying to create my gerbers but when I do a number of the arcs become straight lines, totally messing up my design. Any help would be appreciated. I've attached a screenshot of the board design (left) next to the gerber export (right).

  • Cancel
Parents
  • tracemhos
    tracemhos over 9 years ago
    Well, just got it solved after a suggestion from my mechanical engineer - the arcs had a radius >99mm but my gerber parameters only had 2 integer places which caused the arc radius to become truncated. This apparently caused allegro to throw out the arc completely and replacing it with a straight line. Hopefully this helps anyone else who runs into the same issue!
    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
Reply
  • tracemhos
    tracemhos over 9 years ago
    Well, just got it solved after a suggestion from my mechanical engineer - the arcs had a radius >99mm but my gerber parameters only had 2 integer places which caused the arc radius to become truncated. This apparently caused allegro to throw out the arc completely and replacing it with a straight line. Hopefully this helps anyone else who runs into the same issue!
    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
Children
No Data
Cadence Guidelines

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.

© 2025 Cadence Design Systems, Inc. All Rights Reserved.

  • Terms of Use
  • Privacy
  • Cookie Policy
  • US Trademarks
  • Do Not Sell or Share My Personal Information