Command name: BAL. Asks user to select Arc, Line or Polyline, and specify width of insulation. On Line or Polyline line segment, draws series of Arcs & Lines, Pedits them into Polyline loops, then Pedits them all into one; always on left side relative to drawing direction. Undo reverses overall Pedit, then last-loop Pedit, then undoes one Arc/Line at a time, and so on. Loops touch each other. Overshoots end for trimming as required. On Polyline, does only along selected line segment. On Polyline arc segment, sometimes fails, but if not, draws along first line segment instead, or even free-floating if Polyline is all arc segments. On Arc, offers inside/outside choice, draws/Pedits one loop as on Line, Arrays it and Groups them together. User must specify how many loops, which are spaced along entire length of Arc, not in relation to each other. Alignment of base of loops against Arc is tangent at one side, so other side is off. Width must be specified each time (no default). Requires pre-existing drawing entity for selection.