AutoCAD 3D, how to draw motorcycle front sprocket, autocad

ES: in this video show how to drawing motorcycle front sprocket by used command c (circle), command pl (polyline), command ar (array), command arc, command tr (trim), command bo (boundary), command ex (extrude), command cha (chamfer), command in (intersect), command su (subtract), command helix, command pol (polygon), command uni (union), ...
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#ES

[@ricardolantigua7024]

Excelente tutorial me gustaría que hagas uno de un engranaje cónico pero elicoidal.Gracias