Create an unlinked PCB
Use the Create Unlinked PCB tool to create a PCB from a sketch or face that is not linked to the source design.
In the Design workspace, select Create > Create PCB > Create Unlinked PCB.
The Create Unlinked PCB dialog displays.
In the Create Unlinked PCB dialog, select a profile or planar face.
Select origin by clicking a point from the sketch profile.
Select X axis by clicking a sketch line or edge from the sketch profile.
Click Flip X Axis to reverse the direction of the X axis.
Click Flip Z Axis to reverse the direction of the Z axis.
Note: The Y Axis is not selected directly, but rather inferred from the X and Z Axes.Uncheck Convert Circles to NPTHs if you do not want circles to create holes in the PCB body.
Specify Max NPTH Diameter to limit the creation of holes to equal or less than this size.