FILENAMES: Machinery_skate.dxf Machinery_skate.pdf DESCRIPTION: This is a CAD drawing database for building a machinery skate.. Posted by Errol Groff . The following description was provided: ================================================================= As promised here is the Machinery Skate DXF from Dave (Grumpy the Third Dwarf) Johnson. Please take note, and pay attention to, the warning note on the drawing.