diff --git a/rounding.scad b/rounding.scad
index c57a76f..77beae9 100644
--- a/rounding.scad
+++ b/rounding.scad
@@ -731,6 +731,7 @@ function offset_sweep(
                    ["k", k],
                    ["points", []],
         ],
+        afda=echo(extra=struct_val(argspec,"extra")),
         path = check_and_fix_path(path, [2], closed=true),
         clockwise = polygon_is_clockwise(path),
         
@@ -804,8 +805,8 @@ module offset_sweep(path, height, h, l,
                     convexity=10,anchor="origin",cp,
                     spin=0, orient=UP, extent=false)
 {
-    vnf = offset_sweep(path=path, height=height, h=h, l=l, top=top, bottom=bottom, offset=offset, r=0, steps=steps,
-                       quality=quality, check_valid=true, offset_maxstep=1, extra=0, cut=cut, chamfer_width=chamfer_width,
+    vnf = offset_sweep(path=path, height=height, h=h, l=l, top=top, bottom=bottom, offset=offset, r=r, steps=steps,
+                       quality=quality, check_valid=true, offset_maxstep=offset_maxstep, extra=extra, cut=cut, chamfer_width=chamfer_width,
                        chamfer_height=chamfer_height, joint=joint, k=k, angle=angle);
   
     attachable(anchor=anchor, spin=spin, orient=orient, vnf=vnf, extent=extent, cp=is_def(cp) ? cp : vnf_centroid(vnf))