Gerber requires "clean & closed boundaries" with no overlapping or self intersections; in order to fill polygons. ACE was unable to create filled polygons because there are multiple overlapping objects, and that's the reason for those error messages. To correct the problem, simply delete the overlapping objects (using AutoCAD or any CAD program), and then perform the conversion.

Note: For an example to locate the multiple overlapping objects, use AutoCAD (or any CAD program); then load your dxf and select the area around one of your boundaries and then press command "List". In your example, there were three different objects to describe a single boundary: SOLID, LWPolyline, and Line (see below for output). This is very common problem when people create drawings and incorporate "SOLID Hatches" using AutoCAD.

LWPOLYLINE Layer: "0"

Space: Model space

Handle = 315

Open

Constant width 0.00000

area 2.91356

length 30.57446

at point X= 2.63522 Y= 30.60821 Z= 0.00000

at point X= 2.70022 Y= 30.60821 Z= 0.00000

at point X= 2.76772 Y= 29.64571 Z= 0.00000

at point X= 2.76772 Y= 16.35321 Z= 0.00000

at point X= 2.70022 Y= 15.39071 Z= 0.00000

at point X= 2.63522 Y= 15.39071 Z= 0.00000

at point X= 2.56772 Y= 16.35321 Z= 0.00000

at point X= 2.56772 Y= 29.64571 Z= 0.00000

at point X= 2.63522 Y= 30.60821 Z= 0.00000

LINE Layer: "0"

Space: Model space

Handle = 2ed

from point, X= 2.70022 Y= 30.60821 Z= 0.00000

to point, X= 2.76772 Y= 29.64571 Z= 0.00000

Length = 0.96486, Angle in XY Plane = 274

Delta X = 0.06750, Delta Y = -0.96250, Delta Z = 0.00000

HATCH Layer: "0"

Space: Model space

Handle = 316

Press ENTER to continue:

Hatch pattern SOLID

Associative

Origin X= 0.00000 Y= 0.00000 Z= 0.00000

Note: For an example to locate the multiple overlapping objects, use AutoCAD (or any CAD program); then load your dxf and select the area around one of your boundaries and then press command "List". In your example, there were three different objects to describe a single boundary: SOLID, LWPolyline, and Line (see below for output). This is very common problem when people create drawings and incorporate "SOLID Hatches" using AutoCAD.

LWPOLYLINE Layer: "0"

Space: Model space

Handle = 315

Open

Constant width 0.00000

area 2.91356

length 30.57446

at point X= 2.63522 Y= 30.60821 Z= 0.00000

at point X= 2.70022 Y= 30.60821 Z= 0.00000

at point X= 2.76772 Y= 29.64571 Z= 0.00000

at point X= 2.76772 Y= 16.35321 Z= 0.00000

at point X= 2.70022 Y= 15.39071 Z= 0.00000

at point X= 2.63522 Y= 15.39071 Z= 0.00000

at point X= 2.56772 Y= 16.35321 Z= 0.00000

at point X= 2.56772 Y= 29.64571 Z= 0.00000

at point X= 2.63522 Y= 30.60821 Z= 0.00000

LINE Layer: "0"

Space: Model space

Handle = 2ed

from point, X= 2.70022 Y= 30.60821 Z= 0.00000

to point, X= 2.76772 Y= 29.64571 Z= 0.00000

Length = 0.96486, Angle in XY Plane = 274

Delta X = 0.06750, Delta Y = -0.96250, Delta Z = 0.00000

HATCH Layer: "0"

Space: Model space

Handle = 316

Press ENTER to continue:

Hatch pattern SOLID

Associative

Origin X= 0.00000 Y= 0.00000 Z= 0.00000

## Numerical Support Team