This is a very nice AutoCAD routine from Jay Thomas that allows you to draw various types of 2D sheet-metal decking in the form of a polyline. Since this routine contains DCL (dialog box) and SLB (slide library) files, make sure all files are located in a location that's included in your support file search path. Start by loading the LISP file, then run the command SDK. A dialog will appear with a multitude of settings. There are eight different decking types to choose from, and each of these has editable parameters. These parameters are easy to understand thanks to the graphical display in the dialog. If you are working in 3D, the resulting polyline can easily be extruded or swept along a path. Great job, Jay.
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