Towne Technologies, Inc.
6-10 Bell Ave., P.O. Box 460
Somerville, NJ 08876 USA
Phone:(908) 722-9500 Fax: (908) 722-8394
CAD Design Rules / AutoCad -DXF File
DRAWING ENTITIES SUPPORTED
Lines, Arcs, Circles, Polylines, Polygon, Test, Trace Solid, Donut, Inserts, Ellipse.
NOTE: Polylines with width will have a radius on the end or ends equal to 1/2 the polyline width.
DRAWING ENTITIES NOT SUPPORTED
Hatch, Shape, 3D, Point, Sketch, Dimensions, CLOSED Polylines With WIDTH.
Blocks created from the above supported entities are supported.
CLOSED FIGURES ONLY
The AutoCAD file must consist of only closed figures. Interior and Exterior must be completely separated by the figure's boundary. Be very careful with arcs. Make sure that arcs are connected to the other segments of the figure using OSNAP.
INTERIOR OF CLOSED FIGURES SHOULD BE CONNECTED
Watch out for ambiguous figures that look correct on the screen display but are drawn in an illegal fashion. It is very difficult with AutoCAD to know how a figure has been drawn.
EXTRA VECTORS AND OVERLAPPING VERTEX
Extra Vectors can often trigger an error and are not always visible because they are under another vector. If the vector is out by itself the error is not usually fatal. However, in many cases the vector is touching one of the figures to be patterned and can often cause a different figure to be generated than the one intended.
Overlapping vertexes should be eliminated using either the fillet command (radius 0) or trim command or extend command from AutoCAD. You will not need to do this if OSNAP or SNAP is always used as recommended.
Islands (isolated areas) must be surrounded and defined by one or more closed figures. They cannot be drawn in the same manner as you would for controlling a pen plotter or cutting machine. To create an island one must draw it in a way that the program will correctly interpret.