PCB board outline

[neuro11]

this is my first time to design a layout. my board outline is 30X28 mm. But after i generated the gerber i can see total dimension is larger than that (around 60x40). i have attached the top layer. can you explain how can i reduce that additional space. small dimension is necessery for me. Also what does the circles mean and why they are in 3 corner instead of 4.

Thanks

[Fernando_D]

Hello,

Could you attach your Ultiboard file for testing? What's your Ultiboard version (Help>>About Ultiboard). The 3 circles that you see are called fiducial marks. They are used to align layers with each other.

Regards,

[tanzil.nsu@gmail.com]

Thanks Fernando, i solved the problem. It was due to the settings of Fluidical marks as you have mentioned.

I wonder why your reply did not notify me. It seems you replied long time ago. Would be helpful if i knew on time.