Copper and Mask shapes are completely different in Gerber

Making PCB Layouts, Manual routing, Auto-routing, Copper pouring, Updating from Schematic, Manufacturing Output
Post Reply
Message
Author
visualearner
Posts: 11
Joined: 27 Feb 2024, 16:49

Copper and Mask shapes are completely different in Gerber

#1 Post by visualearner » 13 Oct 2025, 20:20

Hello,

I'm guessing this is a bug but would love to know if there is a quick fix for this! I would greatly appreciate if anyone could help me quickly due to a deadline...

I've attached two screenshots, one of my overlapping shape design in Diptrace (bottom image) and one of how the Gerber viewer looks on JLCpcb (top image)
This happens if the shapes are on the top or bottom layer and no matter if they are on the signal layer or mask layer (or both). Also interesting is that I have several shapes like this in the design and the change will only happen to some of them.

-I'm using the newest version of Diptrace with Windows 11/P14s Think Pad

thank you
Last edited by visualearner on 14 Oct 2025, 15:58, edited 1 time in total.

Serg
Technical Support
Posts: 545
Joined: 09 Jun 2010, 12:12

Re: Copper and Mask shapes are completely different in Gerber

#2 Post by Serg » 14 Oct 2025, 10:36

A similar issue has not been encountered before, and we were unable to reproduce it on a comparable design. Please send the design file to our technical support team — we will be glad to help you.
https://diptrace.com/support/request-support/
In the meantime, you can try recreating the design using one of the tools “Obround” or “Arc.” The problem might not occur with one of them.
Attachments
tools.png
tools.png (3.34 KiB) Viewed 2947 times

visualearner
Posts: 11
Joined: 27 Feb 2024, 16:49

Re: Copper and Mask shapes are completely different in Gerber

#3 Post by visualearner » 14 Oct 2025, 16:03

That method of using an Arc instead of an Obround (which was giving the issue) seems to have fixed the gerber glitch

Thank you -e

Post Reply