Polygonal/Curved Cutouts

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Navigation:  AutoTRAX PCB Design Express (DEX) > Designs > Projects > The PCB > The Solder Mask > Changing a Solder Mask Cutout's Shape >

Polygonal/Curved Cutouts

Solder mask cutouts can be polygonal with optional curved edges. To change to  curved cutout click on the Curve tab in the cutouts properties in the properties panel.

To edit the parameters of a cutout, first select it. The properties panel will display the properties for the selected cutout.


Click the clip0523 button to show this help topic.


This is the selected vertex/segment. The selected vertex is drawn as a solid red square. The selected segment id drawn in red.


The X coordinate of the selected vertex.


The Y coordinate of the selected vertex.


Slide the clip0519 slider to change the 'curvature' of the curve.

Click clip0276 to add a vertex.

Click clip0277 to delete the selected vertex.

All Segments

Check the Smooth button to smooth the entire curve.

Check the Straight button to straighten the entire curve.

Check the Editable button to make the entire curve editable.


Click the clip0517button to straighten the selected segment.

Click the clip0518button to smooth the selected segment.


Use this drop-down to set the layer for the rectangle.

Click clip0280 to fillet the polygon

Editable Curves

Drag any of the control points clip0521to change the shape.

Uncheck the clip0522 button to make the control points for the vertex independent of each other.