remove "artifacts"

[coolerro]

I want to export a gerber file RS-274X  for a small milling machine and I would like to know how do I remove these "artifacts".  

Thank You

[cliff1001]

Gerber RS-274X

Fiducial marks, which appear in Gerber files, are set in the Global Options dialog box.

[abalma21]

Under the Options menu in Ultiboard, select Global Options to open its dialog box.

Select the PCB Design tab.

Uncheck the Show global fiducial marks item to hide these marks.

However, fiducial marks are only used as a reference in Ultiboard. These marks shouldn't affect the manufacture of your PCB.

You can find a little more information about the PCB Design Tab and the fiducial marks at this link.

Alejandro Balma