gremlin.py
...
class Gremlin(gtk.gtkgl.widget.DrawingArea, glnav.GlNavBase,
              rs274.glcanon.GlCanonDraw):
...
        temp = inifile.find("DISPLAY", "LATHE")
        self.lathe_option = bool(temp == "1" or temp == "True" or temp == "true" )
...
    def is_lathe(self): return self.lathe_option


glcanon.py
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class GLCanon(Translated, ArcsToSegmentsMixin):
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    def draw_axes(self, n, letters="XYZ"):
...
            if self.is_lathe():
...